Electricity Supply Board Safety Rules - 2006

8/16/2019 Electricity Supply Board Safety Rules - 2006

1/36

ELECTRICITY SUPPLY BOARDIRELAND

ELECTRICAL SAFETY RULES

2006

ESB NETWORKS

9803084-1


2/36

FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Section 1 INTENT AND SCOPE OF THE RULES . . . . . . . . . . . . .21.1 Purpose of Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.2 Scope of Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21.3 Issue of Safety Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21.4 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31.5 Duties of all Persons in receipt of a copy of these Safety Rules .31.6 Doubts and Objections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31.7 Approved Persons, Procedures and Equipment . . . . . . . . . . . . .41.8 Approval of these Rules and Annex to these Rules . . . . . . . . . . .41.9 Date from which Rules are Effective . . . . . . . . . . . . . . . . . . . . . .41.10 Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51.11 On-Site Risk Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51.12 System Manager’s Permission . . . . . . . . . . . . . . . . . . . . . . . . . .51.13 System Controller’s Permission . . . . . . . . . . . . . . . . . . . . . . . . .5

Section 2 ORGANISATION OF WORK . . . . . . . . . . . . . . . . . . . . . .62.1 Planning and Communication . . . . . . . . . . . . . . . . . . . . . . . . . . .62.2 Approval Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62.3 The System Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72.4 The System Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72.5 Change of System Controller . . . . . . . . . . . . . . . . . . . . . . . . . . .82.6 The Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82.7 Change Of Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92.8 The Person Issuing Work (PIW) . . . . . . . . . . . . . . . . . . . . . . . . .92.9 Change of PIW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102.10 The Person in Charge of Work (PICW) . . . . . . . . . . . . . . . . . .102.11 Change of Person in Charge of Work . . . . . . . . . . . . . . . . . . . .112.12 The Telemess Co-ordinator (TCO) . . . . . . . . . . . . . . . . . . . . . .12

2.13 Change of Telemess Co-ordinator . . . . . . . . . . . . . . . . . . . . . .132.14 The Work Organiser (WO) . . . . . . . . . . . . . . . . . . . . . . . . . . . .132.15 Change of Work Organiser . . . . . . . . . . . . . . . . . . . . . . . . . . .142.16 Cable Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142.17 Commissioning and/or Testing Personnel . . . . . . . . . . . . . . . . .152.18 Specialist personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152.19 Duties of staff working under Person in Charge of

Work or Specialist Personnel . . . . . . . . . . . . . . . . . . . . . . . . . .162.20 Change of Members of the PICW’s work unit . . . . . . . . . . . . .172.21 Assignment of Roles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

CONTENTS

III


3/36

V

5.7 Where to place a HO notice . . . . . . . . . . . . . . . . . . . . . . . . . . .365.8 Discharging and earthing of Apparatus . . . . . . . . . . . . . . . . . . .375.9 Main Earths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .375.10 Applying Main Earths to 400kV, 275kV, 220kV, 110kV

and 38kV overhead lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .375.11 Applying Main Earths to 10kV and 20kV Overhead Lines . . . . .385.12 Applying Main Earths to LV Overhead Lines . . . . . . . . . . . . . . .385.13 Applying Main Earths to HV Cables . . . . . . . . . . . . . . . . . . . . .385.14 Main Earthing of LV cables . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

5.15 Local Earths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395.16 Applying Local Earths to 400kV, 275kV, 220kV,

110kV and 38kV Overhead lines . . . . . . . . . . . . . . . . . . . . . . . .395.17 Applying local Earths to one circuit of a HV Double Circuit,

with the other Circuit Live . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395.18 Applying Local Earths to 10kV or 20kV Overhead Lines . . . . .405.19 Applying Local Earths to LV overhead networks . . . . . . . . . . . .405.20 Applying Local Earthing to a broken line or line about to be Broken . .405.21 Identification of Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415.22 Spiking of Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415.23 Where to earth Power Transformers . . . . . . . . . . . . . . . . . . . . .415.24 Earthing Instrument Transformers. . . . . . . . . . . . . . . . . . . . . . .425.25 Earthing of Switches and Disconnects. . . . . . . . . . . . . . . . . . . .425.26 Earthing of Busbars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .425.27 Reconnection of Apparatus after work . . . . . . . . . . . . . . . . . . .43

Section 6 ACTIVITIES ON LIVE APPARATUS . . . . . . . . . . . . . . .446.1 General precaution for Live Working . . . . . . . . . . . . . . . . . . . .446.2 LV Live Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .456.3 10/20kV Rubber Glove work . . . . . . . . . . . . . . . . . . . . . . . . . .45

Section 7 SAFETY CLEARANCE ZONES TO LIVE

EXPOSED APPARATUS . . . . . . . . . . . . . . . . . . . . . . . .467.1 Safety clearance zones and exposed live apparatus . . . . . . . . .467.2 The Vicinity Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

7.3 The Close Proximity Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . .477.4 The Live Working Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .487.5 Erection of Safety Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . .487.6 Summary of Safety Clearances . . . . . . . . . . . . . . . . . . . . . . . . .49

CLOSE PROXIMITY ZONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49i

VICINITY ZONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49ii

Section 8 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

IV

Section 3 COMMUNICATION BY TELEMESS . . . . . . . . . . . . . . .183.1 Telemess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .183.2 Telemess Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193.3 Drafting of Telemess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193.4 Method of Transfer from Sender to Receiver . . . . . . . . . . . . . .193.5 Register of Proofs of Disconnection Telemesses . . . . . . . . . . . .203.6 Permit to Work Telemess . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.7 Retention of Telemesses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.8 Request for Disconnection (RFD) . . . . . . . . . . . . . . . . . . . . . . .203.9 Proof of Disconnection (POD) . . . . . . . . . . . . . . . . . . . . . . . . .213.10 Proof of Readiness (POR) . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.11 Proof of Partial Readiness (POPR) . . . . . . . . . . . . . . . . . . . . . .233.12 Request for Application of a Main Earth (RAME) . . . . . . . . . . . .243.13 Proof of Application of a Main Earth (PAME) . . . . . . . . . . . . . . .243.14 Request for Removal of a Main Earth (RRME) . . . . . . . . . . . . .243.15 Proof of Removal of a Main Earth (PRME) . . . . . . . . . . . . . . . .243.16 Request for Connection (RFC) . . . . . . . . . . . . . . . . . . . . . . . . .243.17 Proof of Connection (POC) . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Section 4 REQUIREMENTS TO ALLOW WORK ON APPARATUS .264.1 Systems and Boundaries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

4.2 Activities on live equipment undertaken from outsidethe Close Proximity Zone including Operations activitiesbut excluding live work undertaken on live apparatus . . . . . . . .26

4.3 Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .264.4 Recording of all switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274.5 Issue of Request for Disconnection . . . . . . . . . . . . . . . . . . . . .274.6 Issue of Proof of Disconnection . . . . . . . . . . . . . . . . . . . . . . . .284.7 Application of Local Earth . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294.8 Declaring off, Removal of Local Earths, and Issue

of Proof of Readiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294.9 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294.10 Additional Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304.11 When to Treat New Apparatus as Part of the System . . . . . . . .31

4.12 When to Treat Apparatus as not Part of the System . . . . . . . . .324.13 Removal of Main Earths for Test Purposes . . . . . . . . . . . . . . . .324.14 The On-going Telemess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .334.15 Any Other Control Procedures . . . . . . . . . . . . . . . . . . . . . . . . .33

Section 5 DISCONNECTING, EARTHING and RECONNECTION . .345.1 Disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .345.2 Identifying the apparatus to be disconnected. . . . . . . . . . . . . . .345.3 How to Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .345.4 Disconnection of a transformer Neutral . . . . . . . . . . . . . . . . . . .355.5 Verifying the Point of Disconnection . . . . . . . . . . . . . . . . . . . . .355.6 Hold Off notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35


4/36

- 1 -

These Electrical Safety Rules, together with their companion current ElectricalSafety Rules, Power Generation, lay down definite regulations designed to providesafe conditions for work on electrical apparatus. These Rules are supported by aseparate Annex containing approved supplementary information on theimplementation of these Rules.

Separate Electrical Safety Rules, have been provided for ESB Networks systems onthe one hand, and the Generating Stations on the other, to facilitate precise wordingfor individual situations. The underlying philosophy is the same for both sets of Rules.

A copy of these Rules shall be issued to all personnel who have to manage,control, operate, supervise or carry out work on, or in the vicinity of ESB’snetworks. All those to whom these Electrical Safety Rules have been issued arerequired to familiarise themselves with the Rules and to comply with them. In caseof doubt as to the application of any particular regulation, the person concernedshould ask for an explanation or advice from his line manager. A copy of thecurrent Electrical Safety Rules, Power Generation, shall also be given to thosewhose duties require that they have knowledge of them.

ESB regards the safety of personnel as a matter taking precedence over everyother consideration in the execution of work; no emergency can justify disregardfor the safety of personnel. ESB Networks expects the co-operation of therecipients of these Safety Rules in securing the application of the provisions setout herein. Also it requires that staff will develop in themselves and encourage inothers such a concern for safety as will reduce the number of accidents to zeroand consequently eliminate the resultant distress and loss.

The annex to these Rules will contain the references to the approved proceduresand the interpretations of these rules.

Basic Safety Guidelines, in a separate document, are also in place. These guidelinesare based on the current Power Generation and ESB Networks' Electrical SafetyRules. These guidelines set out general instructions concerning procedures and

activities associated with work on or near ESB’s electrical systems.These Rules have been drafted following extensive consultations in ESB Networks andwith other business units. These Rules supersede all previous issues of the SafetyRules (Electrical) relating to ESB’s networks and are effective from February 2006.

Approved byJohn Shine

Executive Director ESB Networks

FOREWORD


5/36- 3 -

1.4 Terminology

1.4.1 "He” is used throughout these Rules for simplicity and should be understoodas “He” or “She” as appropriate in the circumstances. Similarly the terms“his”, “him” and “himself” should be understood to refer to both genders.

1.5 Duties of all Persons in receipt of a copy of these Safety Rules

1.5.1 It is the duty of all persons to whom a copy of these Safety Rules have beenissued to be thoroughly conversant with the Rules which are relevant to thework being undertaken and to conduct their work in accordance with them.The Safety Rules shall by then not be breached, even in an emergency.

1.5.2 Each person shall be satisfied that the work he proposes to undertake canand will be undertaken safely. The work shall only be undertaken when theon site risk assessment demonstrates that all the necessary controls havebeen or will be put in place prior to task commencement.

1.5.3 Anyone attempting a rescue following any incident or accident must bevery careful and must not put themselves or others in any further danger.

1.5.4 Non-observance of these Rules or failure to discharge one's duty may giverise to disciplinary action.

1.5.5 In the event of a mal-operation or safety incident the System Controller andthe System Manager shall be notified. All work shall stop until an instructionis given by the System Manager.

1.6 Doubts and Objections

1.6.1 Any person who has difficulty in the interpretation or in the application ofany particular Rule shall seek clarification from his line manager.

1.6.2 Should any person consider that the work to be undertaken by him cannotbe carried out safely, then he shall so inform his immediate line manager,who shall resolve any problems, or if not resolved, have the matter referred

to a more senior authority.

1.6.3 If, when working at, or within the Vicinity Zone of live apparatus, a personencounters hazards which, following risk assessment, makes the workunsafe to proceed, that person shall report the situation to his line manager.The line manager shall evaluate the situation and provide such instructionand assistance as may be required in order that the work may be carriedout safely.

- 2 -

1.1 Purpose of Rules

1.1.1 These Rules have been compiled for the safety and protection of all whomanage, control, operate, supervise, or carry out work on or in the vicinity of

ESB’s network systems. Advance work planning and good communication area fundamental requirement for the safety of all who work on ESB’s networks.

1.2 Scope of Rules

1.2.1 These Rules apply to work at or within the Vicinity Zone of all parts of theESB’s network, but excluding such parts as may form part of a GeneratingStation, and

(a) Which have been connected to a source of electricity supply, or

(b Which could be connected readily to a source of electricity supply, or

(c) Which may be subject to an induced charge from a source of electricitysupply, and which may be energised to a potential more than 50 voltsAC above earth or more than 75 volts DC above or below earth.

(d) To activities associated with the work planning, operation, identification,disconnection, earthing, and connection of apparatus on ESB’s networks.

(e) To work associated with the inspection and/or commissioning ofapparatus on ESB’s network.

1.2.2 These rules apply up to and at the interface with other systems connectedto, but not part of, ESB’s networks.

1.3 Issue of Safety Rules

1.3.1 A copy of these Safety Rules shall be given to all persons who manage, control,operate, supervise, or carry out work on or in the vicinity of ESB’s networks.

1.3.2 Each person shall sign a receipt for each copy of the Safety Rules issuedto them.

Section 1

INTENT AND SCOPE OF THE RULES


6/36- 5 -

1.10 Approvals

1.10.1 Existing Safety Approvals, where appropriate, shall remain valid untilreviewed and re-issued or until expiry date.

1.10.2 Only Approved Persons may:

(a) Enter a room or compound which contains exposed live apparatus.

(b) Enter an enclosure or cabinet which completely encloses exposed liveapparatus.

(c) Climb a pole, tower or structure which supports exposed live apparatus.

1.11 On Site Risk Assessment

1.11.1 An On Site Risk Assessment shall be properly completed prior to allswitching and work at or within the vicinity zone of ESB’s networks.

1.12 System Manager’s Permission

1.12.1 The System Manager’s permission shall be obtained for all planned workon the system for which he is responsible. This permission may be verbal

or in writing, as specified by the System Manager.

1.13 System Controller’s Permission

1.13.1 The System Controller’s permission shall be obtained prior to thecommencement of activities on the system. This permission may be verbalor in writing, as specified by the System Controller. In the case of the LVsystem notification by the PIW of crews working on the system shall bedeemed to be sufficient.

- 4 -

1.7 Approved Persons, Procedures and Equipment

1.7.1 Where approvals are required to carry out a role, persons who carry outthat role shall be approved.

1.7.2 All activities associated with the management, control, operation,supervision or work in or near the safety clearance zones of ESB'snetworks shall be undertaken only in accordance with the requirementsspecified in these Safety Rules.

1.7.3 Such activities, and in addition activities on low voltage systems withinsub-stations, shall be in accordance with written procedures that havebeen approved by the Manager responsible for interpreting these Rules.The Annex to these rules shall contain the references to the proceduresand the interpretations of these rules.

1.7.4 Only equipment approved for a specific task shall be utilised for that task.Such equipment shall be examined by the user before use to ensure that itis in a safe condition.

1.7.5 An apparatus shall not be treated as being dead, or an apparatus on whichwork has been carried out shall not be treated as being ready for operation,on the basis of a prearranged signal, or understanding, or after an agreedinterval of time, or on the basis of deductions, assumptions or inferences.

1.8 Approval of these Rules and Annex to these Rules

1.8.1 These Rules are approved by the Executive Director, Networks.

1.8.2 Any subsequent changes shall be approved by the Executive DirectorNetworks or the Manager, who has been appointed by the ExecutiveDirector Networks, to have responsibility for interpreting these Rules.

1.8.3 The Annex to these rules shall be approved by the Manager responsible forinterpreting these Rules.

1.9 Date from which Rules are Effective

1.9.1 These Rules supersede all previous issues of the Safety Rules (Electrical)relating to the Transmission, Distribution and Marketing functions and areeffective from a date in 2006 as decided by the Executive Director, ESBNetworks. All procedures approved under clause 4.15 of the Safety Rules,1993 (Electrical), are revoked from this date. Such procedures, if notalready incorporated in these Rules, may in future be approved under Rule4.15 of these rules.


7/36

- 7 -

2.3 The System Manager

2.3.1 The System Manager has overall responsibility for the safe operation of thesystem of which he is Manager. The System Manager may assume the roleof System Controller where he deems it fitting to do so.

2.3.2 The System Manager shall be appointed. The responsibilities of the SystemController and System Manager regarding the day-to-day and longer termmanagement and control of each system shall be set out.

2.3.3 The System Manager or his delegate shall appoint the operator.

2.3.4 The System Manager or his delegate shall not appoint or consent to theappointment of two or more Operators for the same point(s) ofdisconnection on the same disconnected apparatus.

2.3.5 The System Manager or his delegate shall ensure that the operator heassigns is aware of the roles of individuals who have been assigned by thePIW(s) to issue RFD(s).

2.3.6 The System Manager shall be responsible for approving, in advance, allwork that affects the operation of the system.

2.3.7 The System Manager shall ensure that changes that affect operation of thesystem are updated on the network diagram.

2.4 The System Controller

2.4.1 The System Controller shall be approved.

2.4.2 Each system shall, at any one time, be under the operational control of oneapproved person who shall be nominated by or with the consent of theappropriate System Manager. This person shall be the System Controller.

2.4.3 The System Controller shall be responsible for knowing the operational stateof the HV system, for which he acts as System Controller throughout hisperiod of duty. On taking over duty, he shall ascertain the operational stateof the system and shall be aware of any changes in the state of the relevant

system throughout his period of duty.

2.4.4 The LV System Controller shall be aware of the normal operational state ofthe LV system.

2.4.5 Where an on-going telemess is in operation local or central arrangementsshall be approved to ensure that successive System Controllers are madeaware of its existence either directly or by agreed means.

- 6 -

2.1 Planning and Communication

2.1.1 Any activity or work which comes under the scope of these rules shall beplanned in advance.

2.1.2 If a change is required to the plan it shall be revised and communicated toall involved to reflect any changes that impact on the activity or work.

2.2 Approval Levels

2.2.1 Only those persons who have been trained, assessed, and authorised to theappropriate approval level, or who have been specifically appointed inaccordance with an approved procedure, shall be permitted to act in orexercise the duties of the roles specified hereunder.

(a) System Manager

(b) System Controller

(c) Operator (OP)

(d) Telemess Co-Ordinator (TCO)

(e) Work Organiser (WO)

(f) Person who Issues Work (PIW)

(g) Person in Charge of Work (PICW)

(h) Commissioning and Test personnel.

(i) Cable Identifier (CI)

(j) Chargeperson

2.2.2 Persons, who do not hold a specific approval, may carry out the actionsassociated with that approval, so long as they are under the directsupervision of a person who holds that specific approval and are in trainingfor the approval concerned.

2.2.3 Every approval shall have a date of expiry and be subject to review.

2.2.4 An up-to-date list of all approved persons and their approvals shall be readilyavailable to appropriate Supervisors, System Managers and System Controllers.

2.2.5 Every person who holds an approval must have their current approvalin their possession.

Section 2

Organisation of Work


8/36

- 9 -

2.6.8 The completion of every switching programme on HV apparatus, or everysignificant step as agreed, shall be reported to the System Controller, eitherdirectly or by agreed means.

2.6.9 The Operator shall inform the System Manager or his delegate of anyadditional, retired or changed apparatus to allow for updating of the networkdiagram.

2.6.10 In the event of an operational incident occurring, the Operator must informthe System Controller and the System Manager, as soon as practicable after

the event.

2.7 Change Of Operator

2.7.1 During the course of work on apparatus which involves operation of thesystem, an Operator shall be replaced only by or with the consent of theappropriate System Manager.

2.7.2 Where the change-over is in accordance with an approved duty roster thisshall signify such consent.

2.7.3 The new Operator shall take responsibility for telemesses transferred to him.There is no requirement to change the Operator’s name on the associated

HO notices.

2.8 The Person Issuing Work (PIW)

2.8.1 The PIW shall be appointed.

2.8.2 A person may not commence any work on any apparatus, other than routinework covered by standing instruction, unless the work has been specificallyassigned to him by the Person Issuing Work (PIW).

2.8.3 Each work activity shall be issued by one person only. Once issued, only thePIW, a person acting on his behalf or with his consent, may interfere with thework or issue any instruction concerning it, except where it may be

necessary to stop work to prevent danger.

2.8.4 Where more than one PIW is involved in the same work programme, one ofthem shall take overall charge by agreement.

- 8 -

2.4.6 No operations shall be carried out on ESB’s networks without the priorconsent or instruction of the System Controller of that system, except underthe following circumstances:

(a) To prevent danger to persons or property or apparatus.

(b) During widespread serious fault conditions where it is not possible toestablish communication with the System Controller and where theOperator is satisfied that the switching is urgently required and that itdoes not create danger. The System Controller shall be informed of the

switching at the earliest opportunity.

2.5 Change of System Controller

2.5.1 The change over of duties between System Controllers shall be effected inan approved manner (e.g. through an approved duty roster) by, or with theconsent of, the System Manager responsible for the system, or hisnominated representative.

2.6 The Operator

2.6.1 The person appointed and assigned to perform the switching activitiesassociated with the operation of a system shall be the Operator.

2.6.2 The Operator shall be approved.

2.6.3 The Operator shall be assigned by or with the consent of the SystemManager. The System Controller may appoint himself to act as Operator withthe agreement of the System Manager.

2.6.4 Where an Operator is assigned to carry out specific switching associatedwith the preparation/restoration of the system relating to work, theresponsibility for doing so in accordance with these Safety Rules shall restwith the Operator.

2.6.5 Before carrying out any HV switching, and close to the time of that event, the

Operator shall obtain the prior consent of the System Controller (eitherdirectly from the System Controller or from another source approved by theSystem Controller).

2.6.6 Where more than one Operator is involved in the same switchingprogramme one of them shall be nominated by the System Manager to bethe Operator-in-Charge.

2.6.7 The Operator shall ensure that any switching which he carries out on HVapparatus is planned and recorded in an approved manner. The recordingof fault switching shall be carried out as soon as practicable.


9/36

- 11 -

2.10.6 In the event of an electrical incident occurring on site that may impact on thesafe operation of the system, the PICW shall inform the System Controllerand the PIW, as soon as practicable after the event.

2.10.7 The PICW shall issue a Request for Disconnection in respect of theproposed dead work.

2.10.8 On receipt of the Proof of Disconnection the PICW shall carry out, ordirectly supervise, all checks for absence of voltage and the application ofLocal Earths.

2.10.9 Before allowing any of the persons in his charge to start work, he shallinstruct his crew in their duties and in the controls necessary to work safely.He shall point out to them the extent of the apparatus on which they maywork, and he shall warn them of any nearby apparatus which they mustavoid, and ensure that adequate protection is provided. He shall satisfyhimself that each member of his staff has clearly understood the instructionsgiven to him. He shall pay particular attention to:

(a) The erection of such screens and barriers and signs as he considersnecessary.

(b) The briefing of any persons who may join his work unit during thecourse of the work.

(c) Any change in conditions that occur during the course of the work andhe shall make the persons in his charge aware of the change and shall,if necessary, alter his instructions accordingly.

2.10.10 When the work is completed the PICW shall ensure:

(a) All persons in his charge are clear of the apparatus and

(b) All persons in his charge are instructed to remain outside the CloseProximity Zone.

2.10.11 The PICW shall then remove or directly supervise the removal of Local Earthsfitted by him or by persons under his control. He shall satisfy himself that theapparatus on which work has been completed is in a fit state to be put back

into commission as far as he and the persons in his charge are concerned.

2.11 Change of Person in Charge of Work

2.11.1 When a PICW has to be replaced, a new PICW shall be appointed and shallassume full responsibility before any further work is carried out.

- 10 -

2.8.5 The PIW is the person who assigns and/or changes:

(a) The PICW.

(b) The Telemess Co-ordinator where such a person is required toco-ordinate telemessing for the Persons in Charge of Work.

(c) Work Organiser where such a person is required to arrange and controlwork for the Persons in Charge of Work.

(d) The Cable Identifier.

(e) The Chargeperson.

2.8.6 The PIW shall ensure that the work plan is communicated to all persons heassigns. This work plan shall specify the roles and responsibilities of allinvolved in the work to be done and where necessary the sequence of thetasks involved.

2.8.7 The PIW shall agree the switch-out arrangements with the System Manager,as appropriate for the voltage level concerned.

2.8.8 The PIW shall inform the relevant Operator when a change of TelemessCo-Ordinator, Cable Identifier or Person in Charge of Work takes place.

2.8.9 The PIW shall inform the relevant Persons in Charge of Work when a change

of Work Organiser takes place in accordance with approved procedure.

2.9 Change of PIW

2.9.1 When a PIW has to be replaced a new PIW shall be appointed and shallassume the full responsibility of the outgoing PIW. All relevant PICWs,TCOs, CIs and WOs shall be informed of the change.

2.10 The Person in Charge of Work (PICW)

2.10.1 The PICW shall be approved.

2.10.2 A Person in Charge of Work (PICW) shall be assigned in charge of eachsection of work by the PIW.

2.10.3 Only one PICW shall be assigned for each section of work.

2.10.4 The PICW shall ensure that work assigned to him is carried out safely, inaccordance with these Rules.

2.10.5 The PICW shall ensure that an On-Site Risk Assessment is completed andagreed by his crew. He shall ensure that persons engaged in this work, whoare under his charge, are conversant with the state of the apparatus, includinglow voltage and stored energy devices, on which they are about to work.


10/36

- 13 -

for Disconnection in respect of the entire apparatus, on which work is to beperformed by all of the PICWs whose telemessing he is co-ordinating, andhis own work.

2.12.7 On receipt of the Proof of Disconnection the TCO shall issue Proof (s) ofDisconnection, identical to the POD he has received, to each PICW whosetelemessing he is co-ordinating.

2.12.8 The TCO shall receive Proof of Readiness from each and every PICW towhom he had issued Proofs of Disconnection. He shall then issue a

comprehensive Proof of Readiness to the Operator or Operator-in-Charge.

2.13 Change of Telemess Co-ordinator

2.13.1 When a TCO has to be replaced, a new TCO shall be appointed and shallassume full responsibility for continuing the co-ordination of the telemessprocedure associated with the work in progress.

2.13.2 A TCO shall be replaced by or with the consent of the PIW.

2.13.3 The off-going TCO shall transfer his responsibility for telemesses to theperson replacing him.

2.13.4 If, for any reason, the off-going TCO is unable to affect such transfer thePIW shall be notified and he shall make suitable arrangements concerningthe continuation of the activity.

2.13.5 Where a change of TCO takes place, the Operator shall be informed of thechange by the PIW and the Operator shall change the name on therespective HO notice(s) as soon as practicable. The change of TCO shallbe noted by the Operator on his telemess register.

2.13.6 Where a change of TCO takes place, the relevant PICWs shall be informedby the PIW and they shall note the change on their Proofs of Disconnection

2.14 The Work Organiser (WO)

2.14.1 The WO shall be approved.

2.14.2 The WO shall be appointed by the PIW.

2.14.3 A Work Organiser (WO) may be appointed for multi-crew switch-outs toprovide additional flexibility to PIWs to arrange and organise work during theswitch-out in the most effective and efficient manner.

2.14.4 Where work involving a number of PICWs is being carried out on differentparts of the apparatus stated on the Request For Disconnection, thedisconnection of which is made by the same switching operations, a personmay be appointed to be a WO.

- 12 -

2.11.2 The off-going PICW shall transfer his responsibility for telemesses to theperson replacing him and shall ensure that his replacement is adequatelybriefed on the following points before taking over control:

(a) The identification of the people under his control.

(b) The extent of the apparatus that is live in the location where work isbeing carried out.

(c) Details and location of his Local Earths

(d) Details of any special hazards.

2.11.3 A PICW shall be replaced by or with the consent of the PIW. Change-overin accordance with an approved duty roster is permissible.

2.11.4 Where the off-going PICW is unable to affect such transfer the PIW shall benotified and he shall make suitable arrangements concerning thecontinuation of the work.

2.11.5 Where a change of PICW takes place and where Telemess Co-Ordinatorinvolvement does not arise, the PIW shall inform the Operator. The Operatorshall note the change on the telemess Register, and the Operator shall changethe name on the respective HO notice(s) as soon as practicable.

2.11.6 Where a change of PICW takes place and where a Telemess Co-Ordinatoris involved in this person's telemessing, the PICW, or, if unavailable, the PIWshall inform the Telemess Co-Ordinator. The Telemess Co-Ordinator shallnote the change on his Telemess Register.

2.12 The Telemess Co-ordinator (TCO)

2.12.1 The TCO shall be approved.

2.12.2 Where work is being carried out, by different work units, on different piecesof apparatus or at different parts of the system, the disconnection of whichis made by the same switching operations, one or more persons may beappointed to co-ordinate telemessing for the Persons in Charge of the Work.

This person shall be the Telemess Co-Ordinator (TCO).2.12.3 The TCO shall be appointed by the PIW prior to the commencement of work.

2.12.4 The PIW shall not appoint or consent to the appointment of more than oneTCO for the same work location.

2.12.5 The TCO shall act as intermediary for the purposes of telemessing betweenPICWs and the Operator or the Operator-in-Charge.

2.12.6 The TCO shall receive a Request for Disconnection from each PICW whosetelemess he is co-ordinating and then shall issue a comprehensive Request


11/36

- 15 -

(b) have disconnected the cable as Operator for himself as Cable Identifierbefore identification procedures can commence or

(c) Follow live identification procedures.

2.16.6 The Cable Identifier shall place an approved identification tag on anidentified cable before:

(a) Issuing a Proof of Disconnection or

(b) Commencing work on the cable himself as PICW.

2.16.7 On completion of the work the PICW shall issue a POR to the Cable Identifier.

2.16.8 The Cable Identifier shall carry out required testing on the cable and followingsuccessful completion of the test shall issue a POR to the Operator.

2.17 Commissioning and/or Testing Personnel

2.17.1 The commissioner for an apparatus shall be assigned by the relevant SystemManager or his nominee.

2.17.2 Only persons who have been approved shall carry out commissioning tests.

2.17.3 Commissioning tests on apparatus that has been disconnected shall only be

undertaken by a person who holds a POD or is working under a person whoholds a POD.

2.17.4 When carrying out commissioning tests that require work on apparatuswhich is held by a PICW the commissioner and/or test personnel shalldiscuss and agree all his activities with the PICW.

2.17.5 The commissioner and /or test personnel shall be responsible for his ownsafety, the safety of all persons who may be affected by his activities and forthe safety of the apparatus.

2.17.6 He shall certify in writing to the PICW and inform the System Manager thatthe apparatus conforms to the required specifications and is in a fit state tobe connected to the system, in order that the POR may be prepared.

2.18 Specialist personnel

2.18.1 Specialist personnel who are required to work on apparatus forming part ofthe system shall be assigned by a PIW. This person shall be called theChargeperson.

2.18.2 The Chargeperson shall be a person who is not approved to issue a telemess.

2.18.3 The Chargeperson shall be in charge of each section of work on, or withinthe Close Proximity Zone to, electrical apparatus which has been live orwhich can be made live.

- 14 -

2.14.5 When a WO has been appointed, the Request for Disconnection from eachPICW to the TCO identifies the extremities of the work location as specifiedby the WO. This allows the WO flexibility to move work units to differentlocations on the disconnected and earthed apparatus as dictated by therequirements of the work without further telemessing.

2.14.6 If there are a number of PIWs involved in the task, one or more WO may beassigned by agreement of all these PIWs.

2.14.7 The WO shall be responsible for the following:

(a) Organisation and direction of work units under his control.

(b) Specifying to all his PICWs their work areas and limits.

(c) Ensuring that PICWs under his direction are in a position to correctlyidentify their work locations.

(d) Re-briefing and instructing all his PICWs each time their workingarrangements/responsibilities alter during the switchout.

(e) Recording and administering the allocation of and changes in workassignments in accordance with the approved procedure.

2.14.8 The WO may also be appointed as the TCO.

2.15 Change of Work Organiser

2.15.1 When a WO has to be replaced, a new WO shall be appointed and shallassume full responsibility for continuing the previous WO’s duties. Thisincludes acceptance of responsibility for the WO’s Control Sheet.

2.15.2 A WO shall be replaced by or with the consent of PIW.

2.15.3 The PIW shall inform all PICW’s involved of the name of the new WO.

2.16 Cable Identifier

2.16.1 The Cable Identifier shall be approved.

2.16.2 The Cable Identifier shall be assigned by the relevant PIW.

2.16.3 Only persons who have been approved may carry out identification procedures.

2.16.4 Approved Identification procedures shall be employed.

2.16.5 The cable identifier shall:

(a) hold a Proof of Disconnection telemess (with permission to removeearths for test purposes), or


12/36

- 17 -

2.19.2 No person may start work, on or in the Close Proximity Zone of electricalapparatus, until he has been given a positive instruction to commence by thePICW. Work and the work location shall be confined to that contained in theinstructions and the RFD held by the PICW.

2.19.3 If he is in any doubt about what apparatus he is to work on, or whatprecautions he is to observe, he must not start work. If work has started, hemust cease work. In such circumstances he must make his difficulties knownto the PICW who will then repeat and explain his instructions.

2.19.4 When work is completed and crew has been instructed to remain clear ofthe apparatus and he must not thereafter approach Close Proximity Zone ofthe apparatus.

2.20 Change of Members of the PICW’s work unit

2.20.1 If, during the course of work on apparatus, a member of the work unit isreplaced or an additional member is assigned to the work unit, the PICWshall ensure that each such new member is adequately briefed on thefollowing points before commencing work:-

(a) The location of the Local Earths.

(b) The extent of the apparatus that is live in the location in which they areworking.

(c) The limits of the activity to which each new member of the work unitshall confine himself and the precautions to be observed.

(d) Details of any special hazards.

2.21 Assignment of Roles

2.21.1 No person may act in a role for which he does not hold a current approval.

2.21.2 No person shall act in the role of PICW, TCO, WO or CI unless assignedto that task by the PIW.

2.21.3 No person shall act in the role of Operator or Operator-in-Charge, unlessassigned by or with the consent of the System Manager.

2.21.4 The PIW and System Manager shall ensure that roles are clearly assigned.Where more than one role is assigned to one individual, this must always bestated in instructions.

2.21.5 It is not permissible for an Operator or Operator-in-Charge to simultaneouslyact as a TCO for the same disconnected apparatus.

- 16 -

2.18.4 Where appointed, the Chargeperson shall countersign the Proof ofDisconnection held by a PICW.

2.18.5 The Chargeperson shall identify the location of the Local Earths and ensurethat his work location is adequately covered by these earths.

2.18.6 The PICW is not responsible for the actions of the Chargeperson.

2.18.7 The Chargeperson shall ensure that before work commences an on site riskassessment is completed and agreed by his crew. The Chargeperson shall

ensure that before work commences, all persons engaged on this particularsection of work who are under his charge are conversant with the state ofthe apparatus on which they are about to work. He shall also point out thelimits of safe working.

2.18.8 He shall pay particular attention to:

(a) The briefing of any person who may join his work unit during the courseof the work.

(b) The rebriefing of all members of this work unit if the working conditionsare changed.

2.18.9 The Chargeperson shall be responsible for his own safety, the safety of allpersons in his charge, and for the safety of the apparatus, tools and

equipment. If he needs clarification on any point relating to the safety aspectof the work, he shall not proceed with the work, but shall refer the matter toa more senior authority.

2.18.10 The Chargeperson shall check that his instructions are carried out.

2.18.11 The Chargeperson shall be responsible for issuing a DOF where it is required.

2.18.12 When the work is completed he shall ensure:

(a) all persons in his charge are clear of the apparatus and

(b) all persons in his charge are instructed to remain outside the CloseProximity Zone and

2.18.13 He shall certify in writing to the PICW that the apparatus for which he is

responsible is in a fit state to be put into operation.

2.19 Staff working under Person in Charge of Work or Specialist

Personnel

2.19.1 It is the duty of each individual engaged in work on electrical apparatus toco-operate with the PICW, to observe all precautions indicated by him, andto carry out all instructions precisely.


13/36

- 19 -

3.2 Telemess Forms

3.2.1 All telemesses shall be written on an approved form.

3.3 Drafting of Telemess

3.3.1 The following instructions shall be observed when making out a telemess:

(a) The telemess shall be written out by the sender on a standard

approved form

(b) All corrections shall be initialled.

(c) The date and agreed time of transmission, to the minute, at the time oftransfer, shall be inserted.

(d) It shall be addressed to a particular person, by name and location - thisperson shall be known as the receiver - and it shall be signed by thesender and receiver. The roles of both the sender and the receivershall also be stated.

(e) Where the sequence of operations is a relevant factor, the telemessshall state the operations to be performed in the sequence in whichthey are to be performed.

(f) The system voltage may be described only in numerals, e.g. 38kV.

(g) Only approved abbreviations shall be used. (See Definitions.)

3.4 Method of Transfer from Sender to Receiver

3.4.1 A telemess may be sent from the sender to the receiver by hand, througha Messenger or by Telephone, Radio or Radio - Phone.

3.4.2 When issued by hand the sender shall hand a written telemess directly tothe receiver.

3.4.3 When a Messenger is used the sender shall transfer a written telemess to

receiver through a messenger. The messenger shall sign the telemess atthe time of transfer. The messenger shall hand the telemess to the Receiverwho shall sign the telemess.

3.4.4 The contents of a telemess may be communicated by means of any of therecognised media which provide immediate two-way communications(e.g., phone, radio, radio-phone):

(a) The telemess shall be written out on an approved form by the senderand dictated to the receiver who shall write it down word for word.

(b) The date and time of transmitting, as recorded in the telemess, shallbe agreed to by the sender and the receiver.

- 18 -

3.1 Telemess

3.1.1 When it is necessary, as specified in these Rules, for the persons directlyinvolved in the disconnection of an apparatus for work, or the connection

of an apparatus after work, to communicate with each other about suchdisconnection or connection, the message must be written on a standardform known as a Telemess. The Telemess must be precise as to:

(a) The apparatus involved.

(b) The status of earths.

(c) The operation or operations to be performed and as to the order inwhich they are to be performed, or

(d) The operation or operations that have been performed.

3.1.2 Detailed instructions on making out a Telemess are to be found on thecover of the Telemess pad, and both sender and receiver of the Telemess

are equally obliged to ensure that these instructions are carefully followed.3.1.3 The following kinds of message may be sent by telemess:

(a) Request for Disconnection (RFD)

(b) Proof of Disconnection (POD)

(c) Proof of Readiness (POR)

(d) Proof of Partial Readiness (POPR)

(e) Request for Application of Main Earths (RAME)

(f) Proof of Application of Main Earths (PAME)

(g) Request for Removal of Main Earths (RRME)

(h) Proof of Removal of Main Earths (PRME)

(i) Request for Connection (RFC)

(j) Proof of Connection (POC)

3.1.4 The requirements of the telemess procedure apply equally to both senderand receiver.

Section 3

COMMUNICATION BY TELEMESS


14/36

- 21 -

3.8.3 When issued by a PICW it shall:

(a) Outline the work to be performed and state the exact location of thiswork or

(b) Specify the work location as within the limits specified by the WorkOrganiser (WO), where a WO has been appointed,

3.8.4 When issued by a TCO it shall:

(a) Incorporate the overall work locations as specified by the RFDs

received including his own work location.

3.8.5 When issued by an Operator it shall:

(a) Include a statement on the status of the apparatus:

(i) Disconnected and HO applied or

(ii) not disconnected.

(b) Request the apparatus be disconnected or disconnected at certainstated points.

(c) Specify whether or not Main Earths are required.

(d) Request confirmation.

3.8.6 When it is necessary to have earths removed for test purposes, the RFDshall request this permission and shall request that no other work shall beundertaken and no other Proof(s) of Disconnection shall be issued for theapparatus by the Operator.

3.9 Proof of Disconnection (POD)

3.9.1 A Proof of Disconnection (POD) is a declaration in writing stating that:

(a) specifically named apparatus has been disconnected at certain statedpoints and

(b) Hold Off notices have been affixed at these points.

(c) It shall include a statement as to whether or not this apparatus hasbeen earthed

(d) If earthing has been carried out, these earths shall be called MainEarths. A Main Earth Notice shall be affixed to all Main Earths and thePOD shall state the exact location of the Main Earths with Main EarthsNotice.

(e) Where permission to remove Main Earths for test purposes has beenincluded in the RFD, the POD shall state that the Main Earths may beremoved and no other POD’s have been or will be issued for thisapparatus by the operator.

- 20 -

(c) The receiver shall insert the reference number of the sender's formand shall sign his own form.

(d) The sender shall insert on his form the reference number of thereceiver's form and shall sign his own form to indicate that thetelemess has been repeated to him correctly.

(e) The receiver shall repeat back the completed telemess as he has it written.

3.5 Register of Proofs of Disconnection Telemesses

3.5.1 The issue of each POD shall be recorded on a telemess register. The PODis cancelled on receipt of the corresponding POR or POPR, by enteringdate of receipt and serial number of the POR or POPR.

3.6 Permit to Work Telemess

3.6.1 The Permit to Work is a Telemess and the requirements of drafting ofTelemesses apply.

3.6.2 The Permit to Work Telemess can only be transferred from sender toreceiver by hand.

3.6.3 When appropriate to the work and where there are not more than fourpoints of disconnection, the RFD, associated POD and POR/POPR, mayalso be combined onto a single approved form known as a Permit to Worktelemess.

3.7 Retention of Telemesses

3.7.1 All Telemesses, including Permit to Work Telemesses, and their copiesshall be retained for a period of 12 months.

3.8 Request for Disconnection (RFD)

3.8.1 A Request for Disconnection (RFD) is a request in writing to havespecifically named apparatus disconnected.

3.8.2 When issued it shall:

(a) Identify the apparatus involved.

(b) Include a statement as to whether or not earthing is required. Whenthe apparatus includes an overhead line or a cable, it shall include arequest to have earths applied.


15/36

- 23 -

3.10.2 When apparatus, in respect of which a POD was issued, has been alteredeither by the installation of extra or new apparatus (which can bedisconnected or which can be used to disconnect other apparatus) or theremoval of existing apparatus, the POR shall identify the alteration.

3.11 Proof of Partial Readiness (POPR)

3.11.1 A Proof of Partial Readiness (POPR) is a report in writing for a particular

part of the system which clears the apparatus in that part to:(a) Allow an Operator to change the stated points of disconnection or to

change the location of the Main Earth(s).

(b) Be made available for operation subject to removal of any remainingLocal Earths or any other impediments which need to be cleared.

(c) Accommodate additional work.

(d) To allow a new apparatus, when not complete, to become part of thesystem.

3.11.2 The person making the report shall:

(a) State that all persons who were working on the apparatus are clear of

the apparatus.

(b) State the exact location of all Local Earths still remaining:

(i) put on by or under the supervision of the sender,

(ii) put on by or under the supervision of the PICW, whosetelemessing is being co-ordinated by the sender,

(iii) put on by or under the supervision of the PICW(s) consequent toPOD(s) that was issued by the sender.

(c) Identify the apparatus, if any, which is not in a fit state to be put intooperation and, where relevant, the apparatus which is in a fit state tobe put into operation.

3.11.3 Before recommencing work on the apparatus a new RFD must becompleted and the PICW must have a new POD.

3.11.4 The Operator who receives the POPR shall ensure that any item of plantidentified in the POPR which is not fit for operation remains disconnectedin the process of changing the existing point(s) of disconnection to thealternative point(s) of disconnection.

- 22 -

3.9.2 The issue of a POD means (even if not specifically stated therein) that:

(a) This apparatus shall not be connected to a source of supply, and

(b) Any Main Earths specified in it shall not be removed, except wherepermission is given to remove earths for test purposes, until a Proof ofReadiness or Partial Readiness has been received.

3.9.3 In situations where the same POD is required by a number of people (whohad earlier issued RFDs), photocopies of the POD may be issued by hand,provided that each copied POD has the name of the receiver and theirsignature. The POD shall be uniquely identified by adding the suffix “A, B,etc. to the photocopied POD’s number.

3.9.4 A person who issues a POD shall keep a record in the telemess registerin the Telemess Pad or in an approved register indicating to whom thePOD and its copies were issued.

3.9.5 For every POD issued by an Operator, a corresponding Hold Off notice(s)shall be put in place.

3.9.6 The Operator who is also to work as a PICW on the disconnectedapparatus shall place a completed Hold Off notice(s) in his own name forhis own work.

3.9.7 In accepting a POD the person so doing shall satisfy himself that thedisconnected apparatus totally includes that described in his RFD.

3.10 Proof of Readiness (POR)

3.10.1 A Proof of Readiness (POR) is a report in writing stating that a specificallystated apparatus, for which the person making the report is responsible, isready for operation as far as the sender is concerned. It shall state that:

(a) All persons who were working on the apparatus are clear of the apparatus.

(b) All Local Earths put on by, or under the direct supervision of the PICW,have been removed, or

(c) All Local Earths put on by or under the direct supervision of thePICWs, whose telemessing is being co-ordinated by the TCO, havebeen removed, or

(d) All POD(s) issued by the sender have been cancelled by receipt of acorresponding POR(s).

(e) All tools, materials and other obstructions under the control of thesender are clear.

(f) The apparatus, referred to in the proof of readiness, is in a fit state tobe put into operation.


16/36

- 25 -

3.16.2 It shall be preceded by a POR which shall state:

(a) That all persons who were working on the apparatus are clear of theapparatus,

(b) That all earths, other than those, if any, at the location of the receiverhave been removed and,

(c) That the apparatus is in a fit state to be put into operation.

3.16.3 The RFC and the preceding POR shall be combined on the one form and

issued as one entity. In situations where the apparatus has already beenconnected to the system this shall be stated.

3.17 Proof of Connection (POC)

3.17.1 A Proof of Connection (POC) is a report in writing stating that specificallynamed apparatus has been connected to the system.

- 24 -

3.12 Request for Application of a Main Earth (RAME)

3.12.1 A Request for Application of a Main Earth (RAME) is a request in writingto have a Main Earth applied to specifically named apparatus at a certainstated point(s).

3.12.2 It shall include a statement that the apparatus has been disconnected at allpoints, from which it can be made live and Hold Off notices have been applied.

3.12.3 It shall specify the location of any Main Earths fitted.

3.13 Proof of Application of a Main Earth (PAME)

3.13.1 The Proof of Application of Main Earth (PAME) is a report in writing statingthat specifically named apparatus has been earthed at a certain statedpoint(s) and that a Main Earth notice(s) has been affixed.

3.14 Request for Removal of a Main Earth (RRME)

3.14.1 The Request for Removal of a Main Earth (RRME) is a request in writing tohave a Main Earth removed from specifically named apparatus. It shall:

(a) Include a statement that all persons are clear of and that all LocalEarths have been removed from the apparatus.

(b) Identify the location of other Main Earths, if any, which remain.

(c) State that HO notices are not to be removed from point(s) of disconnectionand that the apparatus is not to be connected to the system.

3.15 Proof of Removal of a Main Earth (PRME)

3.15.1 The Proof of Removal of a Main Earth (PRME) is a report in writing statingthat a Main Earth (and associated Main Earth notice) has been removedfrom specifically named apparatus at a certain stated point(s). It shall stateHO notice(s) have not been removed from point(s) of disconnection and

that the apparatus is not connected to the system.

3.16 Request for Connection (RFC)

3.16.1 The Request for Connection (RFC) is a request in writing to havespecifically named apparatus connected to the system. It shall request theremoval of any remaining Main Earths, if any, at the location of the receiverand request that HO notice(s) be removed from point(s) of disconnection.


17/36

- 27 -

4.3.4 A person to whom a key to locking facilities has been issued, shall not givethis key to any person other than another person to whom the particular keyhas also been issued.

4.4 Recording of all switching

4.4.1 All planned and operational switching which is to be carried out todisconnect, reconnect, or connect for the first time, HV and LV apparatus,

shall be written in advance.4.4.2 All fault switching shall be recorded.

4.4.3 The completion of every switching programme on HV and LV apparatus orevery significant step as agreed shall be reported to the System Controller,either directly or by agreed means.

4.5 Issue of Request for Disconnection

4.5.1 The PICW shall issue a RFD which shall:

(a) Identify the apparatus on which it is intended to work.

(b) Request the apparatus be disconnected.

(c) Specify whether earthing is or is not required.

(d) Specify the work to be performed.

(e) State the exact location of this work {Exception. See Work Organiser 2.14}

4.5.2 Where a TCO has been appointed the TCO, shall issue a RFD which shall:



(c) Specify whether earthing is or is not required.

(d) State the overall work locations as specified by the RFDs received

including his own work location.4.5.3 The CI shall issue a RFD which shall:



(c) State that earthing is required.

(d) State that permission is required to remove earths for test purposes.

(e) Specify the work to be performed.

- 26 -

4.1 Systems and Boundaries.

4.1.1 Every HV and LV apparatus forms part of a system which shall be definedby the System Manager responsible for that system.

4.1.2 Each system so defined may, with permission from the relevant SystemManager, be further divided by the System Manager. Each sub-divisionmust itself have a System Controller, as detailed in Section 2.

4.1.3 The following shall be clearly identified.

(a) All cubicles in a station.

(b) All circuits emanating from a station.

(c) End poles, end masts and outside cable terminations.

4.1.4 Every control panel containing small wiring in a transformer or switchingstation shall display a notice stating the highest voltage of the small wiringin the panel.

4.2 Activities on live equipment undertaken from outside the

Close Proximity Zone including Operations activities but

excluding live work undertaken on live apparatus

4.2.1 Any work activities on live apparatus shall only be carried out by trainedpersonnel who are approved. All such activities shall be approved by theManager responsible for these Rules.

4.2.2 The only operations and activities which may be performed on liveapparatus forming part of the ESB’s systems when workingunaccompanied are those which have been approved by the Managerresponsible for these rules. Procedures must indicate whether the task canbe carried out accompanied or unaccompanied.

4.3 Locks

4.3.1 Lock-off facilities shall be used where provided.

4.3.2 Where locks are fitted to secure apparatus, e.g., at switching points, thelocks shall be of an approved type.

4.3.3 Keys may be issued to approved persons whose duties require the use ofsuch keys. The issue of keys shall be recorded in an approved manner.

Section 4

REQUIREMENTS TO ALLOW WORK ON APPARATUS


18/36

- 29 -

4.7 Application of Local Earth

4.7.1 On receipt of a POD the PICW shall personally carry out or directlysupervise all tests for the absence of voltage and the application of LocalEarthing where applicable.

4.8 Declaring off, Removal of Local Earths, and Issue of Proof

of Readiness

4.8.1 When the work is completed the PICW shall issue a Proof of Readiness when:

(a) All persons in his charge are clear of the apparatus and

(b) All persons in his charge are instructed to remain outside the CloseProximity Zone,

(c) He has personally removed or directly supervised the removal of allLocal Earths put on by him, or under his supervision.

(d) He has received a Declaration of Fitness, where such is required, forthe apparatus about to be connected.

(e) Adequate precautions have been taken to prevent accidental contactwith any part of the apparatus which is about to be made live and that

all persons under his charge are aware of the situation on site beforeissuing a POR.

4.8.2 Where a TCO has been appointed he shall:

(a) Receive Proofs of Readiness from each and every PICW to whom hehad issued Proofs of Disconnection.

(b) Issue a comprehensive Proof of Readiness.

4.8.3 Where a CI has been appointed he shall:

(a) Receive Proofs of Readiness from each and every PICW to whom hehad issued Proofs of Disconnection.

(b) Issue a comprehensive Proof of Readiness confirming tests have been

carried out.

4.9 Connection

4.9.1 Prior to the connection of an apparatus to a system, the Operator who isto perform the switching shall be in possession of the appropriate PORs.A Declaration of Fitness may be required even though a POR is issued.

4.9.2 In situations where only part of an apparatus is to be connected to asystem, the Operator shall be in possession of the appropriate Proof(s) ofPartial Readiness and where necessary, a Declaration of Fitness.

- 28 -

4.5.4 In situations where more than one Operator is involved in the sameswitching, the Operator-in-Charge shall issue a RFD to the otherOperator(s), which shall:

(a) Identify the apparatus that is required to be disconnected.

(b) State the status of the apparatus i.e. Disconnected and HO applied ornot disconnected.

(c) Request the apparatus be disconnected.

(d) Specify whether or not Main Earths are required.

(e) Request confirmation.

4.6 Issue of Proof of Disconnection

4.6.1 When issued by an Operator or Operator-in-Charge and when the RFDhas been complied with, he shall issue a Proof(s) of Disconnection stating:

(a) That specifically named apparatus has been disconnected at certainstated points and,

(b) That Hold Off notices have been affixed at these points and,

(c) The exact location of the Main Earths where fitted and,(d) That Main Earth Notice are applied to Main Earths fitted and,

(e) Where permission to remove Main Earths for test purposes has beenincluded in the RFD, the POD shall state that the Main Earths may beremoved and no other POD’s have been or will be issued for thisapparatus by the operator.

4.6.2 When issued by a TCO who is in receipt of a POD from an Operator orOperator-in-Charge, the TCO shall issue to each PICW, whosetelemessing he is co-ordinating, Proof(s) of Disconnection identical to thePOD he has received.

4.6.3 When a CI, who has received a RFD, issues a Proof(s) of Disconnection

it shall:

(a) Specify that the named apparatus has been disconnected at certainstated points and

(b) State that Hold Off notices have been affixed at these points.

(c) State the exact location of the Main Earths.

(d) State that Main Earth Notices are applied to Main Earths fitted.

(e) State that the cable has been identified and an Identification Tag fittedwhen required.


19/36

- 31 -

4.10.3 If additional work is to be carried out which requires the moving of a pointof disconnection or moving Main Earths, then the following shall apply:

(a) The System Manager shall be informed (either directly or by agreedmeans) and permission obtained to carry out the additional work.

(b) The Person(s) who is/are holding the original Proof(s) of Disconnectionshall:

(i) Stop working on the apparatus and declare all persons off.

(ii) Return the apparatus to the Operator-in-Charge or Operator viathe Proof of Partial Readiness telemess procedure.

(c) New RFDs shall be issued to the Operator / TCO.

(d) PODs shall be issued to each TCO / PICW.

4.11 When to Treat New Apparatus as Part of the System

4.11.1 When new apparatus has reached the stage where the apparatus, or partof it, is capable of being connected readily, and in an approved manner, tothe system, the PIW shall ensure that the System Manager is informed thatthe installation of the new apparatus is approaching this particular stage.

4.11.2 The PICW shall issue a Proof of Readiness or Proof of Partial Readinessto the Operator.

4.11.3 The operator shall be in possession of the POR/POPR’s before connectingthe apparatus.

4.11.4 The System Manager shall ensure that from this stage the apparatus shallbe treated as if it were part of the system.

4.11.5 After connecting the apparatus to the system, the Operator shall ensurethat the System Controller is notified.

- 30 -

4.9.3 On receipt of the POR(s), the Operator or the Operator-in-Charge shallremove personally, by direct supervision or through the telemessprocedure:

(a) All Main Earth(s) and Main Earth notice(s) and

(b) All HO notice(s).

4.9.4 The HO notices shall only be removed when all earths and relevant MainEarth notices are removed from the apparatus about to be connected.

4.10 Additional Work

4.10.1 If additional work is to be carried out on disconnected apparatus which isoutside the location specified by a PICW on a RFD, then the following shallapply:


(b) The Person in Charge of the additional Work shall be in possession ofa POD which will allow this work to be carried out.

(c) This POD shall be obtained from the Operator-in-Charge or from an

Operator or a TCO who already holds an appropriate POD, providedthat the PODs already issued permit the accommodation of this work.

4.10.2 If additional work is to be carried out on disconnected apparatus which iswithin the location specified by another PICW on a RFD, then the followingshall apply:


(b) The Person(s) who is/are holding the original Proof(s) ofDisconnection shall:

(i) Stop working on the apparatus and declare all persons off.

(ii) Return the apparatus to the Operator-in-Charge or Operator viathe Proof of Partial Readiness telemess procedure.

(c) New RFDs shall be issued to the Operator / TCO.

(d) PODs shall be issued to each TCO / PICW.


20/36

- 33 -

4.14 The On-going Telemess

4.14.1 In all cases of change-over of duties the person going off duty shall ensurethat all telemesses in his possession which are still outstanding are transferredin an approved manner to the person coming on duty. For example, thefollowing telemesses shall be transferred in an approved manner:

(a) Any RFDs and/or any PODs which have been received by the persongoing off duty and which have not been acted upon by the namedReceiver.

(b) Any PODs which have been issued by the person going off duty andwhich have not been counteracted by the receipt of follow-on PORs.The receiver of the on going POD shall log the details of the POD intohis Telemess register.

(c) Any RFDs which has been issued by the person going off duty (interOperator).

(d) Any PODs which have been received by the person going off duty andwhich have not been counteracted by a follow-on PORs from thenamed Receiver.

4.14.2 When there is a change of Operator, there is no requirement to change theHO notice(s).

4.15 Any Other Control Procedures

4.15.1 Should it not be possible or practicable to follow the control procedureslaid down in these Electrical Safety Rules, then other control procedures,which are equally safe, shall be followed, provided that:

(a) A written risk assessment has been carried out and a safe workingprocedure drawn up which details each stage of the work and thecontrol procedures to be applied at each stage and,

(b) The safe working procedure has been approved in writing by theManager responsible for interpreting these Rules.

- 32 -

4.12 When to Treat Apparatus as not Part of the System

4.12.1 An apparatus shall be considered not part of the system when any one ofthe following applies:

(a) When it is physically and completely removed.

(b) When it is not possible by any approved procedure to connect it to thesystem.

(c) When no part of the apparatus shares a live pole or other live

apparatus.

(d) When no part of the apparatus, which is being considered, breachesthe Close Proximity Zone of any apparatus connected to the system.

4.13 Removal of Main Earths for Test Purposes

4.13.1 Some testing procedures require that the apparatus not be earthed atcertain stages during the period of testing. In these cases any Main Earthswhich have been applied may be removed.

4.13.2 Only approved persons shall carry out tests on unearthed apparatus.

4.13.3 The person carrying out the tests shall have confirmation by telemess thatonly one POD is issued by the Operator for the apparatus under test andno other work is in progress on that part of the system under test duringthe period of testing.

4.13.4 The person removing any Main Earth for test purposes shall be inpossession of a POD giving permission to remove Main Earths for testpurposes or a Request for the Removal of Main Earths (RAME) for testpurposes.

4.13.5 The person carrying out the tests shall ensure that the Main Earths havebeen re-applied at the end of the tests. If work needs to proceed LocalEarths where applicable must be re-applied.


21/36

- 35 -

5.3.3 Automatic Features: Where disconnection to allow work on apparatus ismade by means of a device which is fitted with an automatic control feature(e.g. automatic timing device), the feature shall be rendered inoperative.This includes the switch wire on automatic control.

5.3.4 Remote Control: Where disconnection to allow work is made by means ofa device which is subject to remote control, each and every such remotecontrol point shall be disabled and HO notice applied and treated as aseparate point of disconnection.

5.3.5 Disconnection using HV Isolators: Where the fuses or solid links aredetachable they shall be removed from their support equipment by theOperator and their custody shall be controlled.

5.4 Disconnection of a transformer Neutral

5.4.1 In the case of a transformer with a common or shared neutral, except LV PMEsystems, disconnection of the transformer must include disconnection of theneutral. In all other cases the neutral shall be directly connected to earth.

5.5 Verifying the Point of Disconnection

5.5.1 The point(s) of disconnection shall be verified by one or a combination ofthe following methods:-

(a) Check the distinguishing name, number, make, mark, or description ofthe apparatus. Care shall be taken to ensure that the limits of theClose Proximity Zone to live apparatus are observed.

(b) Associate the apparatus with the points of disconnection, eitherphysically or through the use of approved maps, network, line or mimicdiagrams.

(c) The disconnection at each point must provide a visible break in the supplycircuit. Where a visible break is not provided the device through whichthe disconnection is effected shall be of an approved type.

5.6 Hold Off Notices

5.6.1 When an apparatus has been disconnected at a point for the purposes ofwork, security against reconnection shall be provided.

5.6.2 Security against re-connection is primarily effected by the placing of HOnotices. The disconnection is not completed until all properly completedHO notices are in position.

- 34 -

5.1 Disconnected

5.1.1 The term disconnected shall only be used when disconnecting an apparatusfor dead work. Any apparatus forming part of or capable of forming part of

a system, and which it is intended to make dead for work, shall bedisconnected at every point from which it can be made live. Each and everysuch point shall be treated as a separate point of disconnection.

5.1.2 No point shall be called a point of disconnection until a properly completedHO notice is applied to the point of disconnection.

5.1.3 No point of disconnection shall be established until the operator is inpossession of an appropriate RFD or the operator is disconnecting forhimself as PICW.

5.2 Identifying the apparatus to be disconnected.

5.2.1 The person issuing the RFD shall positively identify the apparatus to bedisconnected on an approved telemess form. He shall also ensure that hiswork area is totally included in the apparatus to be disconnected. Any ofthe following aids should be used towards this identification:

(a) Check the distinguishing name, number, make, mark, or description ofthe apparatus. Care shall be taken to ensure that the limits of theClose Proximity Zone to live apparatus are observed.

(b) Associate the apparatus with the proposed points of disconnection,either physically or through the use of approved maps, sketches, lineor mimic diagrams.

5.3 How to Disconnect5.3.1 Disconnection of the apparatus at each point shall be carried out by means

of the approved equipment installed for this purpose.

5.3.2 Disconnection may be made at a point where such equipment is notinstalled, e.g. through the breaking of jumpers, provided the work involvedin making the disconnection at that point is treated as a separate jobindependent of the work for which the disconnection is required, andprovided approved practices are observed and approved clearances areobtained with the break.

SECTION 5

DISCONNECTING, EARTHING and RECONNECTION.


22/36

- 37 -

5.8 Discharging and earthing of Apparatus

5.8.1 Prior to earthing, where practicable, at every point of application of Mainand Local Earths the absence of voltage shall be verified with a voltagedetector approved for the voltage concerned.

5.8.2 Discharging of all apparatus is considered to be effected through thepositive application of earths.

5.8.3 Earths fitted by, or under the direct supervision of the Operator, inresponse to an RFD with earths required, are known as Main Earths. Eachsuch earth shall have a Main Earth notice attached, with the name of theOperator thereon. This applies to portable and fixed earths.

5.8.4 Earths fitted by or under the direct supervision of the PICW, are known asLocal Earths. Each such earth shall have a Local Earth notice attached withthe name of the PICW’s thereon.

5.8.5 Where a permanently installed earthing switch is provided, it shall beclosed once. A manually operated earthing switch shall be closed with apositive action and not immediately reopened.

5.8.6 Operation of a permanently installed earthing switch shall be checkedvisually, where the facility is provided, to ensure that the earthing switch isclosed. Where the apparatus does not afford the facilities for observation

of the application of the earth then such apparatus shall be of an approvedtype.

5.8.7 All automatic features on the earthing switch(es) shall be renderedinoperative and a Main or Local Earth notice shall be affixed at each switchand at master Remote Control Switch or at every remote control point.

5.9 Main Earths

5.9.1 Main Earths are required on all overhead lines and on all cables. MainEarths are required for other apparatus when requested on a RFD.

5.10 Applying Main Earths to 400kV, 275kV, 220kV, 110kV and

38kV overhead lines

5.10.1 A 400kV, 275kV, 220kV, 110kV or 38kV overhead line which has beendisconnected, and on which it is intended to work, shall have Main Earthsfitted on all phases of the disconnected line at every point from which theline can be made live. Such earths shall be fitted by or under the directsupervision of the Operator responsible for carrying out the switching.

- 36 -

5.6.3 A HO notice shall only be used at a point of disconnection and at a remoteswitch controlling a point of disconnection. A notice such as a "Not to beOperated" notice should be used in all other instances where there is needto prevent the operation of any apparatus.

5.6.4 The affixing in an approved manner and subsequent removal of each HOnotice shall be carried out by or under the direct supervision of theOperator carrying out the switching.

5.6.5 The HO notice shall be completed with the name of the Operator and the

name of the person from whom a Proof of Readiness/Partial Readiness isrequired.

5.6.6 A separate HO notice shall be affixed by, or under the direct supervision ofthe Operator who carried out the disconnection, at each and every point ofdisconnection for each and every POD issued in respect of that point.

5.6.7 When switching for himself, the Operator shall apply a HO notice at eachpoint of disconnection and enter his name as Operator and as the personfrom whom a Proof of Readiness/Partial Readiness is required. Thisapplies at all voltages.

5.6.8 A HO notice shall be affixed in such a manner that it cannot be displaced,and that there cannot be any doubt about the point to which it refers.

5.6.9 A HO notice shall only be removed by an Operator who has received Proofof Readiness/Partial Readiness or a Request for Connection. On removaleach notice shall be destroyed to prevent unauthorised use.

5.6.10 Where any of the points from which the apparatus can be made live is anormally open point, the NO notice shall be covered by, or shall beremoved and replaced by, a HO notice.

5.6.11 When a person is working at a metering location, with a cutout continuouslyin view, the requirement to apply a HO notice may be dispensed with.

5.7 Where to place a HO notice

5.7.1 HO notices shall be placed by, or under the direct supervision of theOperator who carried out the disconnection on each of the following,where applicable:-

(a) All point(s) of disconnection from which the apparatus can be made live.

(b) The local actuating switch or button of the point of disconnection.

(c) The remote control switch of the point of disconnection.

(d) The devices that prevents remote operation of the point of disconnection.


23/36

- 39 -

5.15 Local Earths

5.15.1 Local Earths and Local Earth notice shall be fitted, when required, by orunder the direct supervision of the PICW.

5.15.2 A cable connected to an overhead line shall have Local Earths fitted asnear as practicable to the line/cable junction when Main Earths are notfitted to the cable terminations.

5.15.3 Where work is to be carried out on any cable which is used for eitherelectricity or telecommunication purposes, and which, in the opinion of acompetent person, could be subjected to induced voltages from adjacentcircuits, approved precautions shall be taken to prevent danger from anyinduced voltage.

5.15.4 Where work is to be carried out on a cable, the metal sheath or screen ofwhich is insulated from earth at the point of work, approved precautionsshall be taken to prevent danger from any sheath voltage.

5.16 Applying Local Earths to 400kV, 275kV, 220kV, 110kV and

38kV Overhead lines

5.16.1 Any overhead lines on which it is intended to work shall have Local Earths

fitted on all phases or by following approved local earthing procedures forthe relevant voltage. These earths shall be within sight of the persons atwork. Additional earths may be required in certain circumstances, and shallbe applied and removed.

5.17 Applying local Earths to one circuit of a HV Double Circuit,

with the other Circuit Live

5.17.1 Where work is permitted on one circuit of a double circuit OH line whilethe other circuit is live, the PICW, on receipt of the POD, shall identify atthe point of work, or witness the identification of the circuit that has beendisconnected and earthed according to the POD.

5.17.2 The PICW shall complete, or directly supervise the completion of, themarking of the tower on which work is to be carried out. .

5.17.3 The PICW shall apply or directly supervise the application of the Local Earthsto the conductors forming the circuit that is disconnected on the tower.

5.17.4 This shall be repeated for every tower on which work is to be carried out.

- 38 -

5.10.2 Where Faulted Phase Earthing (FPE) exists in a substation, a 110kV or38kV overhead line which has been disconnected in that substation, andon which it is intended to work, may have the Main Earths applied on allphases of the disconnected line at a point outside of the substation. TheseMain Earths shall be fitted by or under the direct supervision of theOperator responsible for carrying out the switching.

5.11 Applying Main Earths to 10kV and 20kV Overhead Lines

5.11.1 A 10kV or 20kV overhead line which has been disconnected and on whichit is intended to work, shall have Main Earths applied on all phases of thedisconnected line conveniently adjacent to the work position, subject to therequirement that there shall be a Main Earth between every point ofdisconnection and the work position.

5.12 Applying Main Earths to LV Overhead Lines

5.12.1 A LV overhead line which has been disconnected, and on which it isintended to work, shall have Main Earths applied. These Main Earths shallbe fitted by or under the direct supervision of the Operator.

5.13 Applying Main Earths to HV Cables

5.13.1 A cable which has been disconnected for work shall be discharged andhave main earths applied.

5.13.2 Where a cable terminates on a cable end box and main earths cannotconveniently applied at that point, it shall be earthed in an approvedmanner, between the point of disconnection and the work location and asclose as possible to the work location.

5.14 Main Earthing of LV cables

5.14.1 An LV cable which it is intended to make dead for work shall bedisconnected at every point from which it can be made live. Main earthsshall be fitted between the point(s) of disconnection and the cable. If acable cannot be directly earthed, then the phase cores shall be connectedto the neutral core. In the exceptional cases where it is not practicable toearth the cable approved precautions shall be taken.


24/36

- 41 -

5.21 Identification of Cables

5.21.1 Prior to work a cable shall be identified and Identification Tag applied.

5.21.2 The cable shall be identified by a Cable Identifier in an approved mannerat the point of work.

5.21.3 The identification shall be confirmed after attaching the Identification Tag.

5.21.4 The cable so identified shall be pointed out to the PICW by the CableIdentifier.

5.22 Spiking of Cables

5.22.1 A cable, which has been disconnected and earthed, on which it is intendedto work shall, when required, be spiked at the point of work.

5.22.2 Approved checks shall be made in conjunction with the spiking procedureto ensure that the correct cable has been spiked.

5.22.3 If the cable has become open circuited due to a fault, and if it has to bespiked on both sides of the open circuit, it shall be earthed at the point(s)of disconnection on each side of the open circuit before being spiked.

5.22.4 In certain approved conditions spiking may not be required.

5.23 Where to earth Power Transformers

5.23.1 The primary and secondary terminals of a transformer shall be earthed atthe transformer. This may not be possible in certain cases and if soapproved procedures shall be followed.

5.23.2 Where the transformer has a third (or tertiary) winding which has itsterminals brought out, this winding or the connecting leads to the terminalsof this winding shall be earthed on all phases. If the third or tertiary terminalsare not brought out they shall not constitute points through which supply canbe restored and they may be disregarded for earthing purposes.

Electricity Supply Board Safety Rules - 2006

Documents

Transcript of Electricity Supply Board Safety Rules - 2006