14665_5 Electric Traction Lifts

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IS 14665 Part 5 :1999

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Indian StandardELECTRIC TRACTION LIFTS SPECIFICATION

PART 5 INSPECTION MANUAL

ICS 91.140.90

0 BIS 1999BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

May 1999 Price Group 5


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Lifts and Escalators Sectional Committee, ETD 25

FOREWORD

This Indian Standard Part 5) was adopted by the Bureau of Indian Standards, after the draft finalized by theLifts and Escalators Sectional Committee had been approved by the Electrotechnical Division Council.A large number of Indian Standards have been published to cover the requirements of different types of lifts aswell as components of lifts. In order to maintain uniformity in inspection of lifts, a need has been felt to preparea standard manual for inspection of lifts and this standard is prepared to meet this need. It is felt that thisstandard shall be of great help to the regulatory staff who are implementing lift rules in their respectivestates/union and to the technical staff of the lift manufacturers and lift maintenance contractors.


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IS 14665 Part 5 :1999

Indian Standard13LECTRIC TRACTION LIFTS SPECIFICATION

PART 5 INSPECTION MANUAL1 SCOPE1.1 This standard Part 5) applies to electric tractionpassenger/goods lifts erected at any place andintended for use by passengers.1.2 This standard does not apply to:

a) Service lifts dumbwaiters)b) Hydraulic liftsc) Escalatorsd) Cranes

1.3 This standard is concerned with inspection of liftsfrom safety point of view and does not coverperfonmmce requirements and corresponding tests.2 TERMINOLOGY2.1 The definitions given in various Indian Standardson lifts are applicable.2.2 Additional DefinitionsInspector Inspector means Inspector of lifts or anyother officer appointed by State/Union Governmentto maintain Lift Act/Rules or any other Actllldesconnected with safety of lifts and framed byState/Union .Government.3 GENERAL REQUIREMENTS3.1 This topic has been further divided into threeparts:

a) Personal .safetyb) Duties of inspectorsc) Arrangement for inspection

3.2 Personal Safety3.2.1 Inspectors should know the danger involved ininspection of the lifts, since any accident may notonly disable the person but may prove to be fatal.Inspector should at all times be alert for movingobjects, and when on top of an elevator car formoving counter weights, hoistway, projections suchas beams, adjacent moving cars, cams and otherequipment attached thereto or . mounted in thehoistway. The overhead clearance should always benoted as number of fatal accidents occur due to carsrunning into limited overhead space while inspectionsare made from top of the lift cars. As an added

precaution the overhead distance available from thetop lauding should be painted on the wall to warn thepersons on top of the car, particularly when theoverhead distance is inadequate.3.2.2 Inspectors should never enter lift pits containingwater. A fatal accident due to electric shock mayoccur under such conditions. When working in thelift pit, the inspector should always note the positionof the car and also keep clear distance fromdescending counterweight in the hoistway of the liftbeing inspected and those in adjoining hoistway.3.2.3 The power supply line disconnect switch shouldbe opened, locked and tagged out when it is desiredto prevent movement of the lift or when inspectingelectrical parts, to ensure that no unauthorized personoperates the switch.3.2.4 Before starting the inspection of a lift, theInspector should first determine that the operatingdevice, emergency stop switch, and any other safetydevices or switches are in proper working order andin the proper position for inspection.3.2.5 When dual or attendant operation is provided,the changeover switch should be in the position foroperation from the car only. Before inspecting a liftin a bank of Group Supervisory Control Lifts,disconnect the lift to be inspected from the groupoperation. When means of communication isprovided in the car, determine that it is Operative.While car operating device is provided on the top,use it to operate the ca r when on top of the carinstead of depending on an Operator in the car.3.3 Duties of InspectorsThe following are the duties of the Inspectors.3.3.1 While inspecting new lift or altered installationof a lift, determine whether lift installation confirmsto the requirements of the relevant Indian Standard orlift regulations and whether the required safetydevices function as required therern.3.3.2 While making initial inspections, or periodicalinspections and tests of existing installations afterthey have been approved for operation by theenforcing authority, determine that the equipment isin a safe operating condition and has not been alteredexcept in conformity to the applicable BIS Code orlift regulations.


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IS 14665 Part 5 :19993.4 Arrangement for InspectionThe .Inspector should request the owner or his agentto make the following arrangements, prior toinspection or test, on receipt of completion reportsfrom the owner for the lift or his agent:

a)

b)

Provide a qualified personnel from the liftmanufacturer for initial inspection and fromthe approved lift maintenance contractor forsubsequent periodical inspections to performthe tests specified in 4 and regulations .of theState/Union Government.Provide a qualified person of GovernmentLicensed Electrical Contractor who hascarried out the wiring works such as liftmains Lighting and power), machine roomlighting, ventilation of machine room andany other wiring work connected with liftinstallation and not being the lift wiringwork carried out by lift manufacturer.

4 GENERAL NOTES ON TESTS4.1 The inspection and tests on lift installations canbe done from the following five places:

a) From the lift pit Table 1)b) From inside of the lift car Table 2)

c) From top of the lift car Table 3)d) From the machine room Table 4)e) From each and every landing of the lift

able 5).4.2 Instruction given at the top of each table shall beread carefully and followed properly before startinginspection.4.3 The points given .in tables are general guidelines.If art Inspector desires to carry out some more test asper provision contained in relevant Indian Standards,he is free to do so.4.4 Before starting inspection from any of theposition mentioned in 4.1 above, a sign boardindicating that the lift is under maintenance andinspection shall be displayed at ground floor landingreferably at all landings if possible).4.5 The actual position of each and every point ofthe table shall be compared with the requirementsand accordingly a remark satisfactory orunsatisfactory shall be written in remark column.4.6 A detailed recommendation on each and everypoint when the remark unsatisfactory has beenwritten in remark column shall be given at the end ofthe Table in the following format:

General S1 No. Table No. Detailed Relevant IS orS1 No. of Table Recommendation Lifi Rule

Table 1 Inspection Made from the Lift Pit[Clause 4.1 a)]

Instruction Before Entering the Lift Pit1 Enter the lift pit only if it is dry. For this purpose take the lift car above the bottommost landing. Open the landing gate/door of

bottommost landing by a special key and check that the moving lift stops on opening the gate/door, thereby ensuring that theelectrical contact of the bouommost landlng is in the safety circuit. Put the pit switch in STOP position and once again checkthat the lift does not operate by closing the bottommost landing gate/door and giving a call. Open the bottommost landing gate/door, put the pit light ON and enter the lift pit.

2 From safety considerations, it is not recommended to move the lift when inspecting from the lift pit.3 As an additional precaution, keep the landing gate/door open by a small distance say 50 mm) and keep pit switches in STOP

position.a) The car shall be moved only when directed by the inspecting person.b) The directives of the inspecting person shall be repeated and only on receipt of OK signal from the inspecting person, the

car shall be moved.c) The car door and landing door if possible) shall be kept open. They shall be closed only when asked by the inspectingperson to start lift.d) These doors shall be opened as soon as the operation of lift is over.

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IS 14665 Part 5 :1999Table 1 Concluded

SINo.1

2

3

4

5

6

-1

8

9

10

II

12131415

DescriptionDimensions

Clean and dry

Provision of ladder

No. of buffers for car

Number of buffers forcounterweight

Condition of car buffers

Condition of counterweightbuffer

Vertical clearance betweencar and buffer carrmrby)

Vertical clearance be[wcerrcounterweight and buffercounterweight runby)

Counterweight guard screen

Provision of pit switch andarrangemet;t for lightingthe pit

Operation of pit switchCrrndkion of tension pulleyof governor rope

Condition of rollers of limitswitches

Condition of trailing cableand its termination, iftermination is providedunder the car

Requirement Ib per approved plan or in itsabsence, as per relevant IndianStandard.Shall be in clean and drycondition.

4 ladder shall be provided if pitdepth exceeds j 300 mm asmeasured below tbe bottom-most landing sill.Mention actual numbers and alsomention whether it is springbuffer or oil buffer. Oil buffersare required when rated speedof the car is more than1.5 metres per second.

Mention actual numbers and alsomention whether it is spring or oilbuffer. Oil buffers are requiredwhen rated speed for the cm ismore than 1.5 metres per second.

Buffers shall not be in bentcondition. In case of oil buffersa device for determining thequantum of oil shall beprovided.Buffers shall not be in bentcondition. In case of oil buffersa device for determining thequantum of oil shall beprovided.

Measure clearance when dle car isIevelled at bottom most Iandlng,

Measure clearance when the car islevelled at top most landing.

Shall -be provided up to a heightof two metres from the floor ofthe pit except where ropecompensation sheave isprovided,Shall be provided and should beaccessible from the lowestlanding. When pit depth is morethan 2 m there should be two pitswitches, one accessible fromthe lowest landing and otherfrom the pit.

The lift shall stop on opening ofpit switch.It shall have free movement.

Instruction.for exiting from the ffft pit:

It shall have free movement,The trailing cable shall beproperly terminated 50 as toavoid detachment fromtermination box,

Position Remarks_cms _cms _cms

clean and dry.Clean but not dry.Dry but not clean.Ne-ither dry nor clean.Depth does not exceed 1300 mm. IDepth exceeds 1 300 mm and aladder is provided.

DeDth exceeds 1 300 mm but aladder is not provided.

One/two buffer >) is/are provided,Spring/oil buffer s) is/are provided.Oil buffers are not provided eventhough the speed exceeds1.5 metres per second,

IOne/two b~ffers s) is/are provided,Spring/oil buffer s) is/m-e provided.Oil buffers are not provided eventhough the speed exceeds1.5 rnetres per se~ond.

Normal/Bent/MissingDevice for de~ermining thequantum of oil is provided/rrotprovided Applicable only for

=

determining the quantum of oil

=mA---rovided.Guard screen is provided but not upto a height of two metres.

Pit switch unit is prcrvided/not Iprovided.

=Pulley is havinghrot having free

~ satisfactory/U nsatisfactory.

1 Put tbe bottom pit switch if provided to RUN position,2 Come out of the lift pit by using pit ladder.3 Put pit light switch off and return the upper pit stop switch to ran position.4 Closing the landing gate/dcror.

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I

IS 14665 Part 5 :1999Table 2 Inspection Made from Inside of the Lift Car

[Clause 4.l b ]Instruction

1 .Bring lift to bottommost landing by giving a hall call and enter the lift car.2 Obserwe points 1 to 10 first by keeping the car door and the Iandlng gate/door oyn.3 Close the car door and the landing gate/door and take the lift in UP and DOWN direction and observe points 11 onwards.

SI Description Requirements PositionNo. Remarks1 Display of car capacity Car capacity shall be displayed. Car capacity is displayedhrot

displayed.2 Provision of fan/trlower Fan/blower shall be pro~,ided. Fan/blower is provided/not3

provided.Condition of fardblower Fanilrlower shall be in working Faniblower is tested and found

order. OK/rrot OK.4 Provision of emergency Emergency alarm bell shall be Emergency alarm hell is

alarm bell. provided.5

providedlnot provided.Condition of emergency Emergency alarm bell shall be in Emergency alarm bell is testedI aiarm bell I working order. I and-found OK/not OK I6 Provision of light point Light point shall be provided, Light point is provided/not

7 Condition of car lighting3=General condition of the liftcar sides, to and floorin9 Provision of natural airventilation in case of sol idcar door and landingdoors inside the lift car10 Condition of car door17

18

terminating in socketholder. provided.Car light shall be in working order. Car light is tested and foundOK/not OK.

General condition shall be Condition of lift car issatisfactory. satisfactoryhrot satisfactory.

Ventilation shall be provided as per Ventilation is provided/rrotrelevant Indian Standard. provided.

I IGeneral condition of the car door General condition of the car doorshall be satisfactory. is satisfactoryhrot satisfactory.

;ill gttp between ~ar sill and Sill gap shall not exceed 30 mm. Sili gap is normal/ abnormal.landing sill at each *landing.anding level of car with The car shall stop at landing level The car stops/does not stoprespect to landing sill at within the specified limits. within the specified limits ofall Iandhrg for up and the landing level.down direction

~xperience of jerk in the car No appreciable jerk shaii be Appreciable jerk is notat the time of starting or noticed at the time of starting. noticed/rroticed at tbe time ofStopp ing I startirrg/stopping. IOn pressing the stop button, the lift I Stop button is tested and found

~

Operation of stop buttonush button t e on] )

in case of manual operatedcar door, open the cardoor while the Iift ismovin

In case of power opemtcdcar door, while lift ismoving, operate the DO

W .In case of power operatedcar find kdnding doors,when they start to close atlandings, actuate the doorsafety mechanism

In case of manually operateddoors, while inside the carand the control is onattendant mode, operatelanding side call button

shtill stop. OK/not OK.On opening the car door, lift shall Lift stopsflift continues to move.stop.

Tbe car door shall not open. The car door opens/does notopen.

The doors shal l open. The doors operr/do not open.

The doors shal l open. The doors operr/tend to close.

The lift shall respond to calls as per Tbe lift responds to calI/does nottype of control. respond to calls.

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IS 14665 Part5 :1999Table 2 Concluded

sl Description Requirements Position Remarks No.2 I In case of manually operated The lift shall not operate for four to The lift operates instantIy/does

doors, put the control in six seconds after arrival of car at not operate instantly.an automatic position, that landing.enter the lift car, manwallyclose the landing door andthe car door

21 In case of power operated The floor position shall be correctly The floor positions displayedhotdoors, while lift is displayed. displayed.moving, is the floorposition correctlydisplayed?

22 h case of goodsasm- The lift shall stop. The lift stops/does not stop.p~s.senger tift, open theemergency exit, itprovided,when the lift is moving

23 In case of gcsxis


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TNo.67

8

9

10

11

12

13

1415

16

17

[89

01

3

DescriptionProvision of hoistwa)~Condition of HoistwayObserve whether the retir in~cam comes ]n contaclwith ,the lever of landinggate locks

Condition of car guide shoeliners

Condition of counterweightguide shoe liners

CcmdiLimr of midwayjunction boxCondition of trailing cable

Condition of floor-gangwayswitches along thehoistway, if provided

Operation of safety switchon car top

Condition of car top

Lubrication of car andcounterweight guides.Roller guide shoes do notrequire lubrication of rails)

Observe whether thecounterweight stacks arefirmly secured to theframe by tie-rod or othersuitable means

Condition of rope Fasteningof suspension ropes

Condition of facia plates

Earthing of landing gatelocks, gang switches, etcIn case of manually operateddoors, reverse the order ofclosing the doors by firstclosing the car door andthen the landing door.Operate tbe floor buttonfrom inside the car orfrom landing side

Condition of compensatorIinkchain/rope -

RequirementsHoistway lighting shall beprovided.Hoistway shall be maintained inclean condition.

Retiring cam shall not come incontact with the lever of gatelocks while the lift is in motion.

The guide shoe finers shall be in goodcondition. There may bereasonable play, but it shall not heso much as to cause the shoe tojump the rails under any condition.The guide shoe liners sh~ll be in goodcondition. There nmy bereasonable play, but it shall not beso much as to cause the shoe tojump the rails under any condition.The wiring shall be properlyterminated in midway junctionbox where installed.

The trailing cable shall be in goodcondition that is the insulationshall not get frayed or damagedmechanically.

Gang switch shall be in goodworking condition.

On operation of safety switch thecar shall stop. -The car top shall be in good andstrong condition.rhe guides shall be in properlylubricated condition.

[tshall be firmly secured.

rhe suspension rope shall beadequately fastened:vI.S. facia plates shall be providedbelow each landing to h;ve flushhoistway if required.Zarthing shall be satisfactorilydone.rhe lift shall operate independentof sequence of closing of landingcar door.

t shall be in good workingcondition whenever provided,

PositionHoistway lighting is provided /notprovided.

Hoistway is clean and needs norepairhequires plastering or repairs.

Retiring cam comes incrmtactidoes not come incontact, with the lever of gatelocks.

The guide shoe liners are ingoodhot good condition.

The guide shoe liners are ingoodhot good condition.

Wiring terminated neatly/Needsadequate termination.

The trailing cable is in izoodcondition and insulation is notfrayed/not in good conditionand insulation is frayed.Gang switch is in goodcondition/not in good condition.Ihe car stops/does not stop.rbe car top is in good/not goodcondition.rhe guides are in properiy/notproperly lubricated condition.

~ounterweight stacks ar~ firmly/loosely secured.

rhe suspension ropes are properly/not properly fastened. -~acia plates provided/notprovided.3artbing is efficiently donehrotefficiently done.rhe lift operates/does not opemte.

=.inkchain is in good/not good

Instruction for Exiting from Top of the Lift Car1 Take the lift car to the top landing level and open the top landing gate/door.2 Come out from car top onto the top landing.3 Return car to normal mode by putting maintenance switch in NORMAL position.4 Also switch OFF car top light.5 Close the top landing gate/door.

Remarks

6 In case of manually operated doors, ask the person inside the lift car to come out at tbe top landing.

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IS 14665 Part 5 :1999Table 4 Inspection of Lift from Machine Room

[Clause 4.l d)]Instruction

1 Proceed to the machine room.2 Unlock the machine room.

sl Description RequirementsNo.1 Locking arrangement of the Locking arrangement shall be

2

I

45

6

7

89

10

11

12

13

14

15

16171819

machine room provided and machine room shallhe kept locked.

ipproach to the machine roomfrom the top landing II

~leanliness in the machine roomProvision of light points and theirworking part

Provision of separate mainswitches for power and light

Provision of three pin plugs

Provision of brake releasingdevice

Provision of dek)cking key forlanding gates

Provision of maintenance logbook and entries therein

Provision of hand lamp/torch

Protection of lift equipment incase of phase failure or phasereversal

Operation of overload tripping

Condition of various contacts atthe panel

Earthing arrangement of mainswitches, lift motor, controlpanel, overspecd, governorswitch. etc

Adjustment of brakes

Condit ion of brake shoe linersOperation of gear box if providedOperation of motor

rhere shall be an easy access fromthe top landing to the machineroom.

rhere shall be an adequate crossventilation preferably withexhaust fan.

kfachine room shall be kept inclean condition.kdequate number of light pointsshall be provided and maintainedin working order.

Separate main switches for lightand power are provided.

rhree pin plugs shall be providedand maintained in working order.

Brake releasing device shall beprovided.

DeIocklng key for landing gatesshall be provided.

Log book shall be maintained in upto dale condition.

Hand lamp/torci~ shall be providedand maintained in working order.

Lift equipment shall be protected.

Overload tripping device for motorwhen provided shall bemaintained in working order.All contacts shall be in propercondit ion .

The earthing arrrrngement shall beproper and the electricalcontractor/owner shall ensurethat earth resistance shall notexceed one ohm as per IndhrrElectricity Rules.

The lift shall stop on application ofbrakes within specified limit.The brake liners shall be in goodcondition.The gear box shall be smooth inoperationThe motor shall be smooth inoperation.

Position , Remarks I.ocking arrangement isprovided/not providedlprovided but machineroom was not locked.:here is an easyaccessfinadequate accessto the machine room fromthe top landing.rhe cross ventilation isadcquatefinadequate. Irhe machine room is kept I.,clean/is not kept clean.4dequate number of lightpoints are provided/notprovidectlprovided but notworking.separate main switches forpower and light provided/not provided.Ihree pin plugs areprovidedhot provided/provided but not working.Brake releasing device isprovided/not providedDelocking key for landinggate is .providedhrot

IOverload device tested andfound OK/not OK.

Earthing arrangement istested and found OK/not IOK

operation. IThe motor is smoothhroisyin operation. I

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s1 Description Requirements Position RemarksNo.20 Condition of gear box llrcre shaU not be any oil leakage There is an oil leakageltro

from gear box oozing acceptable). oil leakage.21 Lubrication of gear box The gear box shall .be well The gear box does not need

lubricated. lubrication/needslubrication.

22 Condition of grooves of traction The condition of grooves shall be The rope movesldoes notsheave such that the rope does not move move.

when the traction sheave stops.23 Condition of main suspension The ropes shall not be in frayed The suspension rope is not

ropes condition. frayed/ frayed,24 Condition of ropes of overspeed The ropes shall not be in frayed The governor rope is not

governor condition. frayecflfrayed.25 Condition of limit switch The rope shall not be in frayed The limit switch rope is not

operating rope when provided condition. frayedJfrayed.26 Condition of wiring at control The control panel wiring shall be The control panel wiring is

panel neatly grouped and the insulation neat and insulation isof wires shall be more than one above one meg.mega ohm with 500 volt megger. ohrrr/below one meg.ohm.

27 Operation of up final limit switch The lift, when operated on power Tested and found OKhrotor mantrafly, from tep most OK,landing shall travel in upwarddirection till the final l imit switchcuts off electric supply to motor.

28 Operation of down final limit The Mt, when operated on pwer or Tested and found OKhrotswitch manually, from bottornrnost OK,

landing, shatl travel in downwarddmtion titf the final firnit switchcuts off the electric supply to motor.

29 .Operation of overspeed governor The overspeed governor and safety Tested and found OK/notgear shall be tested as per OK.requirement of 10 of IS 9878, fornew lit and in case of artyadditionhlteration which changesthe characteristics of overspeedgovemnr and safety gear. hr caseof periodic inspection, theoverspeed and safety gear shallbe tested with kift car stationary;after the test, the lift car shall belowered to check that the safetygear has functioned properly.

30 Condition of trap door. The trap dmr, if provided in The trap door is in soundmachine room, shall be in sound conditionhrot in soundcondhion. conditioo/missing.

31 Testing of contract load and linear The motor, when the lift car is The motor draws current asspeed of the lift at the time of loaded with balanced load in the follows:initial inspection, and in case of car, shall draw approximately Down upany addition/alteration which same current in all three phases Direcrion Directionchanges the contract load/speed separately. R phase ... . ,..,,.,,

The linear speed of the fifi when the Y phase ........ . . ....lift car is loaded with full contract B phase .. . . . . .... .bad, shall be measured in UP and Contract CalculatedDOWNdwtion, and mean rated Speed SpeedSp cafctdatcd in accordance with2.48 of IS 1860. ,, ,..mtrkc ... .. .mtrlsec

The linear speed of the lift can bemeasured dtily on the tmctionsheave or aftematively cart be Lineat speed of lift incalculated by measuring motnr metres per second.RPM and using the foflowingformula:3.14 x Diameter of traction sheavein metre x measured motor r.p.m.Gear Ratio x Roping Factor x 60

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Instruction Before Exiting from the Lift Machine Room1 Lock the machine room.2 Proceed towards the floor landing.

Table 5 Inspection Made from Floor Landings[Clause 4.1 c)l,.

SI Description Requirements Position RemarksNo.

I Provision of delocking arrangement at Delocking arrangement shall be The delocking arrange-every landing provided at every landing. ment is providedhrot

provided.2 Provision of lights at e very landing A light point shall be provided on all The light points are

landings. provided/not provided.3 Condition of landing doors at every floor The landing doors shall be maintained The landing doors are in

in good operating and sound operating conditiorrhotcondition. in operating condition.

4 Condition of hall buttons at every floor The hall buttons shall be in good The hall buttons are incondition. good conditionhrot ingood condition.

5 Operation of landing hall buttons The hall buttons shall respond to the Tested and found OKhrottype of operation of the lift. OK.

6 Condition of floor indicatorhr use These shall be in working condition The indicators areindicator or direction call registering wherever provided. working/not working.light

7 Opemtion fireman switch and test The switch, when made ON shall Tested and found OK/notmake the landing calls inoperative found OK.and the car shall report to groundfloor and shall remain on carcontrol. When the switch is putOFF the car shall return to normalworking.

8 Opening of any landing doors while lift The landing door, on pull or sliding, The landing doors operr/is passing through a landing zone to shall not open and the car shall do not open.another floor continue movement.

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Bureau of Indian StandardsBIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of standardization, marking and quality certification of goodsand attending to connected matters in the country.Copyright

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Amend No. Date of Issue Text Affected

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14665_5 Electric Traction Lifts

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