Internship Report - Febrianto Nugroho (UI)

INTERNSHIP REPORT

PT. TRIPATRA ENGINEERING

5th JANUARY 2015 27th FEBRUARY 2015

CABLE SIZING CALCULATION

400 V SWITCHGEAR AND MCC PROCESS (360-ES-03)

ONSHORE OIL TREATING FACILITIES AND LPG RECOVERY PLANT

UJUNG PANGKAH LIQUID DEVELOPMENT PROJECT

Written by:

Febrianto Nugroho 1206291885

ELECTRICAL ENGINEERING DEPARTMENT

FACULTY OF ENGINEERING UNIVERSITY OF INDONESIA

DEPOK

2015

!

Internship*Report*

PT.*TRIPATRA*ENGINEERING*2015*

UNIVERSITAS*INDONESIA*2015* 1"

PREFACE

Praise be to Allah SWT. for His blessings and guidance, that author is able to

finish this internship which takes place at PT Tripatra Engineering (TPE) Jakarta

from January 5th 2015 until February 27th 2015. The purpose of this internship is

to fulfill the requirement needed by the students in finishing their study in

Electrical Engineering, Faculty of Engineering, Universitas Indonesia.

During this internship, author has gained many experiences applying the

knowledge that has been learned throughout his study at the university in

understanding the real life conditions of work practices. Many had helped and

guided the author during the internship period and in writing this internship

report. Therefore, in this opportunity the author would like to express his gratitude

and many thanks to:

1. Parents and family for providing support, motivation and prayer.

2. Ir. GunawanWibisono, Msc., Ph.D as the Head of Electrical Engineering

Department Faculty of Engineering Universitas Indonesia.

3. Dr. Abdul Muis, S.T, M.Eng as the Internship Coordinator of Electrical

Engineering Department Faculty of Engineering Universitas Indonesia.

4. Mr. Johannes Bangun as the Head of Electrical Department in PT. Tripatra

5. Mr. Adi Iskandar as our mentor and Electrical Engineer in PT. Tripatra

6. Mr. SarmenNapitupulu as the Electrical Engineer in PT. Tripatra

7. Mr. Nopran Adhiansyah as the Electrical Engineer in PT. Tripatra

8. Mr. Haris Hakim as the Electrical Engineer in PT. Tripatra

9. Mrs. Diah Ayu Ciptaning Utami as the Human Resources in PT. Tripatra

10. Mr. Nasarudin as the Human Resources in PT Tripatra

11. Every employees of Tripatra Engineering for helping the writer throughout the

internship process.

12. Every other people that cant be mentioned one by one for every help that they

have provided to the writer.

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The author realizes that this internship report is still far from perfect. Therefore

the author hopes for critics and suggestions from the readers for improvements in

future writings. In the end, the author hopes that this report can be useful to the

readers.

Jakarta, February 2015

Author

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TABLE OF CONTENTS

PREFACE ............................................................................................................... 1

TABLE OF CONTENTS ........................................................................................ 3

CHAPTER I ............................................................................................................ 6

1.1 BACKGROUND .............................................................................................. 6

1.2 OBJECTIVES .................................................................................................. 7

1.3 TIME AND LOCATION ................................................................................... 8

CHAPTER II ........................................................................................................... 9

2.1 COMPANY'S PROFILE (PT. TRIPATRA ENGINEERING) .......................... 9

2.1.1 Brief History ........................................................................................ 9

2.1.2 Vision and Mission ............................................................................. 9

2.1.3 The Business ..................................................................................... 11

CHAPTER III ........................................................................................................ 12

3.1 PROJECT DESCRIPTION ............................................................................... 12

3.2 DISTRIBUTION VOLTAGES .......................................................................... 12

3.3 ELECTRICAL OVERVIEW ............................................................................. 13

3.3.1 General Overview ............................................................................. 13

3.3.2 Essential Power Supply ..................................................................... 15

3.3.3 Essential Power Users ....................................................................... 16

3.3.4 Critical Power Supply ....................................................................... 16

3.3.5 Critical Power Users ......................................................................... 17

3.4 CODES AND STANDARDS ............................................................................ 18

3.5 LOAD UTILITY ............................................................................................ 19

3.6 UTILIZATION VOLTAGES ............................................................................ 20

CHAPTER IV ....................................................................................................... 21

4.1 CALCULATION CRITERIA ............................................................................ 21

4.2 CALCULATION METHOD AND FORMULA .................................................... 22

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4.2.1 Cable Ampacity Correction Factor ................................................... 22

4.2.2 Resistance Cable Data and Resistance Correction Factor ................. 23

4.2.3 Multiplying Factor ............................................................................ 24

4.2.4 Full Load Current .............................................................................. 26

4.2.4.1 Generator ................................................................................... 26

4.2.4.2 Motors ....................................................................................... 26

4.2.4.3 Transformers ............................................................................. 27

4.2.4.4 Distribution Board / Panel ......................................................... 28

4.2.4.5 Static Load ................................................................................ 28

4.2.5 Minimum cable size based on cable ampacity .................................. 29

4.2.6 Number of Cable calculation ............................................................ 29

4.2.7 Voltage drop calculation ................................................................... 30

4.2.7.1 Permissible Voltage Drop ......................................................... 30

4.2.7.2 AC voltage drop at steady state ................................................. 30

4.2.7.3 AC voltage drop at starting ....................................................... 31

4.2.7.4 DC voltage drop ........................................................................ 32

4.2.8 Short circuit thermal withstand capacity ........................................... 33

CHAPTER V ......................................................................................................... 35

5.1 BASIC CRITERIA ......................................................................................... 35

5.2 MOTOR LOAD ............................................................................................. 35

5.2.1 Load Specification ............................................................................ 35

5.2.2 Cable Specification ........................................................................... 36

5.2.3 Cable Sizing Calculation ................................................................... 37

5.2.3.1 Cable Ampacity Correction Factor ........................................... 37

5.2.3.2 Resistance Cable Data and Resistance Correction Factor ......... 37

5.2.3.3 Motor Full Load Current ........................................................... 38

5.2.3.4 Minimum cable size based on cable ampacity .......................... 38

5.2.3.5 Number of Cable ....................................................................... 39

5.2.3.6 Voltage drop calculation ........................................................... 39

5.2.3.6.1 AC voltage drop at steady state ............................................. 39

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5.2.3.6.2 AC voltage drop at starting ................................................... 40

5.2.3.7 Short circuit thermal withstand capacity ................................... 40

5.2.4 Cable Selection .................................................................................. 41

5.3 FEEDER LOAD ............................................................................................ 42

5.3.1 Load Specification ............................................................................ 42

5.3.2 Cable Specification ........................................................................... 42

5.3.3 Cable Sizing Calculation ................................................................... 43

5.3.3.1 Cable Ampacity Correction Factor ........................................... 43

5.3.3.2 Resistance Cable Data and Resistance Correction Factor ......... 43

5.3.3.3 Feeder Full Load Current .......................................................... 44

5.3.3.4 Minimum cable size based on cable ampacity .......................... 44

5.3.3.5 Number of Cable ....................................................................... 45

5.3.3.6 Voltage drop calculation ........................................................... 45

5.3.3.6.1 AC voltage drop at steady state ............................................. 45

5.3.3.7 Short circuit thermal withstand capacity ................................... 46

5.3.4 Cable Selection .................................................................................. 46

CHAPTER VI ....................................................................................................... 47

REFERENCES ...................................................................................................... 48

APPENDICES

APPENDIX 1 Calculation Sheet

APPENDIX 2 PT. Sumi Indo KabelTbk. Low Voltage Cable Catalog

APPENDIX 3 ABB Motor for Hazardous Areas Catalog

APPENDIX 4 UPD-TJ-P2-EL-SL-1001-0 Single Line Diagram (Key)

APPENDIX 5 UPD-TJ-P2-EL-SL-0052-1-0 Single Line Diagram (Detail)

APPENDIX 6 UPD-TJ-P2-EL-SL-0052-2-0 Single Line Diagram (Detail)

APPENDIX 7 UPD-TJ-P2-EL-DR-0011-2 Plant Layout

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CHAPTER I

INTRODUCTION

1.1 Background

Electrical engineering stands at a time of extraordinary opportunity, in the

changing energy, information, communication, transportation, and environmental

needs of the society. Electrical Engineers (EE's) are on the cutting edge of high

technology.

Electrical engineering plays an important role in modern oil and gas industry.

Electrical engineers are equipped to lead exciting, innovative and productive

careers designing enormous electrical power grids that span continents and bring

electricity to our homes and offices, designing control and instrumentation

systems for the oil and gas industry, designing communications systems,

designing electronic devices for commercial applications, designing computers

and their applications and much more.

There is a high demand on electrical engineers in the oil and gas industry.

Electrical engineers are an important part of the petrochemical industry ensuring

safe, reliable and economic production of oil and gas. Electrical engineers design,

monitor, control and manage the electric power system that supplies power to the

hundreds of high voltage motors and thousands of low voltage motors in the field.

It is with those motors that the oil and/or gas could be extracted from the wells for

processing at the plant. Electrical engineers also design, supervise, run and

monitor instrumentation control consoles protecting personnel, machinery and

equipment in the plant.

For that specific reason, PT. Tripatra Engineering is a good place to gain some

experiences. Not only that it has been for four decades experienced in such field,

it also one of the largest engineering company in Indonesia. Therefore, author

decides to do internship at PT. Tripatra Engineering. PT. Tripatra Engineering is a

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subcontractor of PT. Tripatra Engineers and Constructors. PT.

TripatraEngineering focuses on the engineering design activity related to EPC

(Engineering, Procurement and Construction) project awarded to PT. Tripatra

Engineers and Constructors. PT. TripatraEngineering also does the blanket

engineering project tendered by Oil and Gas Companies. One of the EPC projects

awarded to PT. Tripatra Engineers and Constructors was the involvement of PT.

Tripatra Engineering in Ujung Pangkah Liquid Development Phase 2.

The internship program mainly discuss about the Cable Sizing Calculation in

Ujung Pangkah Liquid Development Project. The cable selection is such an

important part of design engineering, because the cables are used to connect loads

to Switchgear/Motor Control Center (MCC), transformer to switchgear,

switchgear to transformer and generator to switchgear. Cable sizing must be

calculate carefully and must fulfill certain criteria in order to meet the client

specifications and standards. It is important to make sure that the cable size meet

the requirement of cable ampacity, maximum voltage drop allowed and short

circuit capacity as per company specification and standard.

1.2 Objectives

The objectives of the internship are:

1. To complete a compulsory subject in the Department of Electrical

Engineering, University of Indonesia, in order to obtain undergraduate degree

(S1).

2. To implement the knowledge gained during study to real life application.

3. To know and understand cable sizing, calculation and selection.

4. To develop experiences on real problems that lie in work life.

5. To provide opportunity for students to gain experience in practical

engineering, the ability to communicate and socialize in the industrialized

world.

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1.3 Time and Location

The internship was carried out for two months from 5th January to 27th February

2015 in PT. Tripatra Engineering (TPE), Jakarta. The internship took place in the

TPE office building located at Building 3 on 2nd Floor. Internship students follow

the same working hours as applied to the field or in the office unit, from 07.45

until 16.45.

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CHAPTER II

OVERVIEW OF PT. TRIPATRA ENGINEERING

2.1 Company's Profile (PT. TRIPATRA ENGINEERING)

2.1.1 Brief History PT. Tripatra Engineering is an engineering company that provide engineering

design services. This company does the engineering design for EPC (Engineering,

Procurement and Construction) project awarded to PT. Tripatra Engineers and

Constructors. The Company also provides blanket-engineering project tendered

by Oil and Gas Companies.

2.1.2 Vision and Mission Vision

To be a world-class company providing integrated innovative engineering

solutions through excellent multidiscipline engineering

Mission

1. To provide world-class engineering and project management solutions for

energy & natural resources sectors.

2. To create synergy across our groups integrated platform.

3. To create optimum shareholders value.

4. To continuously develop its human capital.

5. To become a good corporate citizen.

In pursuit of the mission, Tripatra as lawful and innovative organization will

adhere to:

1. Highest standard of ethics and professional integrity.

2. A safe and healthy environment.

3. Commitment to the utmost customer satisfaction.

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4. Recognition of human capital and its development as valuable asset.

5. Stimulating work environment with motivation, effective communication and

leadership covenant.

6. Continuous quality improvement and sustainability as a way of life

Tripatra has formulated the values that distinguish them from other companies

and is believed to have brought the company to the progress until now. The values

are believed to inspire all components and can bring the company ahead of the

competition in the present and the future.

The values are formulated in Insan Tripatra. Is the duty of every employee and

management of the Company to continue to hold and run values of 6(six) + 1(one)

which has been proclaimed as the guidance in life and work in the company:

Professionally Honest : Upholding ethics, integrity and professionalism

Perfection : The process and final results in the best quality

Open & Positive : Open and respect in all directions

Self Learning : Learn from any mistakes and experiences, honed expertise

proactive

Challenge : Catch the opportunities, welcome the challenge

Innovate : Creative and innovative solutions

Figure 2.1. Insan Tripatra

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Energetic : Breakthrough difficulties, influence enthusiasm and support change

towards improvement

2.1.3 The Business PT. TripatraEngineering is an engineering company that provide engineering

design services. This company does the engineering design for EPC (Engineering,

Procurement and Construction) project awarded to PT. Tripatra Engineers and

Constructors. The Company also provides blanket-engineering project tendered

by Oil and Gas Companies.

PT. TripatraEngineering mainly focuses on two divisions.

1. Design and Engineering

With more than 600 design, engineering and other technical personnel,

strategically located across its various company divisions, PT. Tripatra

Engineering is able to offer its clients the expertise necessary to ensure the

success of their projects, and the dedication to enable continuous support. At PT.

Tripatra Engineering the emphasis of state-of-the-art design based on the most up-

to-date engineering technology is very important.

2. Project Management

Through its extensive experience in Project Management, TRIPATRA has

developed proven methods and systems for the successful and seamless

implementation of large projects. By combining an appropriate method of project

organization with the support of sophisticated software systems, and with its

highly qualified and diverse team of experts, TRIPATRA has been able to provide

its clients with a comprehensive approach to project realization.

TRIPATRAs approach to project management includes, among others, a concise

work and task definition and assignment, planning, scheduling, monitoring and

cost control. Qualified in all these areas of the project cycle, TRIPATRA is able

to provide its clients with best practices in engineering, project management,

procurement, construction, commissioning, and operations.

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CHAPTER III

ELECTRICAL OVERVIEW

UJUNG PANGKAH LIQUID DEVELOPMENT PHASE 2

3.1 Project Description

Hess (Indonesia-Pangkah) Ltd. (HIPL), as operator, is developing the Ujung

Pangkah gas reserves for export to the PLN power station at Gresik. The Ujung

Pangkah gas field is located between 2 and 10km offshore off the north coast of

East Java approximately 35km north of Gresik. Ujung Pangkah gas field is

divided into two phases. Phase 1 is the existing plant and Phase 2 is the expanded

field. The electrical system in phase 2 is a project that is held by PT. Tripatra

Engineering. The facility will be designed for a 25 year operating life, as specified

in the Basis of Design (referred to: UPD-TJ-P2-PR-BD-0001).

Power is generated at 11,000V AC, 3-phase, 50Hz, as part of the OPF facilities.

Main power generators are located at OPF nearby substation and are gas-turbine

driven. The main power generators were sized to supply all electrical loads under

all operating conditions, for all facilities (OPF and OTF/LPGF), under the worst

case load and ambient conditions, with one main power generator off-line. The

main power generators are directly feed main 11kV Switchboard (160- ES-01)

located in OPF substation. The 11 kV Switchboard will then supplied the existing

Phase 1 and Phase 2.

3.2 Distribution Voltages

Power distribution is the process of delivering electricity into the user, that is from

power generation to final end user or a load. To obtain minimum power losses and

in order for the transmission to be efficient, the normal power distribution will be

at the following stages:

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! 11 kV AC 3-phase main power supply from OPF

! 6,600V AC 3-phase for MV motor loads

! 400V AC 3-phase for LV motor loads

! 400V AC 3-phase and neutral for package equipment and non-motor loads

! 230VAC 1-phase and neutral; for general lighting and small power loads.

Power distribution for emergency power to essential supplies will be at:

! 400V AC 3-phase and neutral for main feeders, package equipment and motor

loads

! 230V AC 1-phase and neutral; for lighting and small power loads

Phase 2 electrical loads are handled by the 11 kV Switchgear 160-ES-01 (referred

to: UPD-TJ-P2-EL-SL-1001-0). Phase 2 mainly consist of these following

switchgear (referred to: UPD-TJ-P2-EL-SL-1001-0) :

! 6.6 KV Switchgear and MCC 360-ES-01 located in the Substation B

! 400 V Switchgear and MCC Process 360-ES-03 located in the Substation B

! 400 V Switchgear and MCC Utility 360-ES-02 located in the Substation B

! 400 V Switchgear and MCC Substation C 360-ES-04 located in the Substation

C

! 400 V MCC Inlet/Residue Gas Compressor and Metering 360-ES-31 located

in the Compressor and Metering Panel Room

3.3 Electrical Overview

3.3.1 General Overview Power is generated at 11,000V AC, 3-phase, 50Hz, as part of the OPF facilities.

Main power generators are located at OPF nearby substation and are gas-turbine

driven. The main power generators were sized to supply all electrical loads under

all operating conditions, for all facilities (OPF and OTF/LPGF), under the worst

case load and ambient conditions, with one main power generator off-line. The

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main power generators are directly feed main 11kV Switchboard (160- ES-01)

located in OPF substation.

The main source of power for the OTF and LPGF shall be dual 11kV cable

feeders from the OPF 11kV Switchboard (160-ES-01). The dual 11kV feeders

shall terminate directly to the OTF/LPGF main 11/6.6kV power transformers. The

11kV feeders from OPF and the 11/6.6kV transformers are sized to supply all

OTF and LPGF electrical loads under all operating conditions with one

feeder/transformer off-line and shall be sized for the ONAF rating of the 11/6.6kV

transformers.

Power will be distributed at 6,600V AC 50Hz in 3-phase (MV), and at 400/230V

AC 50Hz in 3-phase with neutral (LV). The MV power system has had its neutral

earthed via low resistance at the transformer star points. The LV power system

has had its neutral solidly earthed at the transformer and emergency generator star

points.

A local emergency generator is provided for the OTF/LPGF, which is driven by

diesel engine. The OTF and LPGF electrical systems will in general consist of the

following main components:

! Dual 11kV feeders (2 x 100%) from the OPF main 11kV switchboard

! Dual 11/6.6kV Power Transformers (2 x 100%) feeding the OPF/LPGF MV

Switchboard, which includes motor starters for MV drives as well as feeders

to distribution transformers

! Process LV Switchboard and Utilities LV Switchboard, each fed by dual

6.6/0.4kV Distribution Transformers (2 x 100%)

! OTF/LPGF Essential Switchboard, fed from a local diesel engine driven

Emergency Generator sized to support essential loads (1 x 100%)

! Main AC and DC UPS Systems for critical services

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The liquids development project also involves additional jetty facilities. Power

supply for electrical consumers is supplied from portable diesel generator. The

portable generator will occasionally be operated to supply power to Jetty Loading

Arm facilities when crude oil or LPG is offloaded from storage tank to a tanker

ship. A small UPS for instrumentation, control and communication system

services are provided and supplied from existing LV power distribution. The jetty

electrical facilities for OTF/LPGF in general consist of the following main

components:

! Jetty Loading Arm LV distribution board, fed directly from portable diesel

generator

! AC UPS system for critical services, fed from existing LV power distribution

(Refered to UPD-TJ-P2-EL-PH-0102)

3.3.2 Essential Power Supply An emergency generator is provided at the OTF/LPGF electrical substation, sized

to maintain power to essential users only. The emergency generator is connected

directly to the OTF/LPGF Essential LV Switchboard, which is a single bus

section with two incomers. One incomer is connected to the normal supply from

the OTF LV Switchboard, and this is closed during normal operation. The second

incomer will be connected to the emergency generator.

On loss of voltage at the essential switchboard, the emergency generator is

automatically started up and regulates its speed and voltage. The supply from the

normal power supply would automatically disconnect, and then the incomer from

the emergency generator will automatically close to energize the switchboard.

The controls for the essential switchboard is designed so that after the automatic

operation, it will be possible to re-close back to the normal switchboard so that

normal users can be supplied from the essential power supply. This operation

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however is manually initiated and operating procedures shall be written to ensure

in this event the generator is not overloaded by normal users.

3.3.3 Essential Power Users Essential power users are loads related to the safety of personnel and equipment

but which are suitable for short breaks in the power supply without detriment

(such as during starting of emergency generators). Such loads are to be supplied

by emergency generators. Those loads are listed below:

! Feeders to all Critical power supplies

! Emergency and escape lighting

! HVAC systems for rooms containing essential equipment

! Safe and Controlled Shutdown

! Hazardous drain pumps (for continuous drain systems only) and flare/vent

scrubber pumps

! Turbine enclosure Ventilation

! Lube Oil Cooler Fans, where required by the package SUPPLIER

! Equipment anti-condensation heaters

Where there are two redundant essential users (e.g. pump A and B in a

duty/standby arrangement) one is fed from an essential switchboard and the other

from a normal switchboard.

3.3.4 Critical Power Supply Critical Power Supplies are derived from storage batteries and distributed to

critical users as either AC or DC supply from UPS systems. The purpose of

critical power supplies is to provide the most reliable power supply for critical

users.

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Main UPS systems are three phase. UPS Power equipment is provided as 2 x

100% redundant rectifier/inverter units (UPS A and UPS B) and 2 x 50% batteries

based on the calculated design load for all connected critical users.

AC UPS systems are of the static, double conversion type with fully-electronic

static bypass switches for each UPS A and UPS B system and a separated manual

maintenance bypass switch. The by-pass AC supply is taken from a different

supply to that of the UPS main supply to minimize common mode failure.

A dedicated 110V DC UPS System is provided for switchgear control, protection

and circuit breakers. The DC UPS System is provided as 2 x 100% redundant

rectifiers and 2 x 50% batteries.

DC UPS systems for Diesel Fire Pumps and Emergency Generators is preferred to

be 24V DC, and be 1 x 100% redundant rectifier with 1 x 100% battery.

DC UPS systems for Compressor Gas Turbine backup lube oil pumps are at 1 x

100% rectifier with 1 x 100% battery.

Batteries are Valve-Regulated Lead Acid (VRLA). Dedicated ventilated battery

rooms are not provided. Each battery bank is installed with an isolator in order to

provide facilities for tripping the batteries.

3.3.5 Critical Power Users Critical Users are those loads necessary for the operation of safety systems and for

facilitating or assisting safe evacuation. It is generally not appropriate for any

break in power supply for critical users, even for a short duration. Critical users

are generally those users listed below:

! Fire & Gas safety systems

! Shutdown & Process Control Systems (ESD & PCS)

! Telecommunications systems (Voice & Data)

! Gas Turbine / Compressor UCP

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! Switchgear tripping and closing supplies

! Gas Turbine backup Lube oil pumps

! Emergency Generator starting and control

! Diesel Engine Fire Pump Starting and Control

! Escape Route Lighting (self contained with integral battery)

! Exit Lighting (self contained with integral battery)

Control systems, telecommunications and UCPs are supplied from common UPS

systems, which also supply other critical users of various systems and packages.

Battery systems for diesel engines and backup lube oil systems are provided as

part of the package supply. Diesel engine driven generators and firewater pumps

have had battery systems sized for cranking duty rather than autonomy time.

3.4 Codes and Standards

Material selection, design, manufacturing, testing and installation of the cable and

its components shall comply with currently applicable statutes, regulation, safety

codes and standards issued by the following:

! API : American Petroleum Institute

! IEEE : Institute of Electrical and Electronic Engineer

! IEC : International Electrotechnical Commission

! IP : Institute of Petroleum

! NFPA : National Fire Protection Association

Indonesian Codes and Regulation

! PUIL : PeraturanUmumInstalasiListrik

! Government Regulation Number 19,1973

! Government Regulation Number 11,1979

! Decision of Director General of Oil and Natural Gas Number

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36/KPTS/DJ/MIGAS/1977

! Technical Directorate of Oil and Natural Gas Letter Number

008/380/DMT/1988

! Directorate General Oil and Natural Gas (MIGAS) Regulation

No.43P/382/DDJM/1992 for Terms and Conditions for Appointment of third

party

! MIGAS Guidelines under Regulation Number 06P/0746/M.PE/91

3.5 Load Utility

Load utility is used to determine which switchgear suits the motor. Since there are

lots of motors and feeders related to the plant and each loads required different

voltages to operate, then those loads are utilized to different switchgear. Those

switchgears have the voltages operation of 11 KV, 6.6KV, 400V and 230V. The

load utilization are described as follows:

! Motors rated above 132 kW : 6.6 kV, 3 Phase, 3 Wire, 50 Hz

! Motors rated above 0.18 kW up to 132 kW : 400 V, 3 phase, 3/4 Wire, 50 Hz

! Motors up to 0.18 kW : 230 V, 1 Phase, 2 Wire, 50 Hz

! Space Heater, Auxiliary power supply : 230 V, 1 phase, 2 Wire, 50 Hz

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3.6 Utilization Voltages

The utilization for typical loads are given below:

Table 3.1 Utilization for typical loads

LOADS UTILIZATION VOLTAGES

Motors less than 0.37kW 400V 3ph+E or 230V, 1ph+E, 50Hz

Motors 0.37kW up to 132kW 400V, 3ph+E, 50Hz

Motors above 132kW 6,600, 3ph+E, 50Hz

Process Heaters 400V, 3ph+E, 50Hz

Welding Sockets 400V, 3ph+E+N, 50Hz

Convenience Sockets (field) 230V, 1ph+E+N, 50Hz

Lighting (normal emergency) 230V, 1ph+E+N, 50Hz

Anti-condensation Heaters 230V, 1ph+E+N, 50Hz

Diesel Engine Starters & Controls 24V DC, 2 wire

MCC Contactor Controls 230V, 1ph+E+N, 50Hz

Instrumentation, safety and

communications system 230V, 1ph+E+N, 50Hz

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CHAPTER IV

CABLE SIZING CRITERIA

4.1 Calculation Criteria

! Allowable steady state current carrying capacity.

Current carrying capacity is defined as the amperage a conductor can safely carry

before melting occurs in the conductor and/or the insulation. There are many

factors that will limit the amount of current that can be passed through a wire.

Determining factors include: Conductor Size, The larger the circular mil area, the

greater the current capacity. Insulation, The amount of heat generated should

never exceed the maximum temperature rating of the insulation material. Ambient

(surrounding) temperature, The higher the ambient temperature, the less heat

required to reach the maximum temperature rating of the insulation. Conductor

Number, Heat dissipation is lessened as the number of individually insulated

conductors, bundled together, is increased. Installation Conditions, Restricting the

heat dissipation by installing the conductor in conduit, duct, trays or raceways

lessens the current carrying capacity. This restriction can be alleviated somewhat

by using proper ventilation methods, forced air cooling, etc.

! Allowable voltage drop during steady state and transient (motor starting)

condition.

Voltage drop is defined as the amount of voltage losses that occurs through all

part of circuit due to impedance. The longer the cable the voltage drop will

become greater. Therefore the voltage drop aspect is critical to supply the voltage

to the loads.

! Short circuit current withstand capacity.

This criterion is applied to determine the minimum cross section area of the cable,

so that cable can withstand the short circuit current. Failure to check the conductor

size for short-circuit heating could result in permanent damage to the cable

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insulation and could also result into fire. In addition to thermal stresses, the cable

may also be subjected to significant mechanical stresses.

4.2 Calculation Method and Formula

4.2.1 Cable Ampacity Correction Factor Cable ampacity is corrected by cable ampacity correction factor, that consists of

temperature correction factor and cable grouping correction factor. The formula of

cable correction factor is shown below:

F = F!!!x!F! (4-1)

where:

F : Cable ampacity correction factor

F! : Correction factor for ambient temperature and conductor temperature consideration (Temperature correction factor)

F! : Correction factor for cable grouping consideration

Temperature correction factor is related to the environment ambient temperature

(or specified value as per company specification), temperature conductor rating

(depend on insulation type used) and reference ambient temperature as per

manufacture used for the cable. The formula of the temperature correction factor

is shown below:

F! = !!!!!!!!!!! (4-2)

where:

TC : Temperature Rating of Conductor in 0C (900C for XLPE and

700C for PVC)

T1 : Environment/ Field Ambient Temperature in 0C (400C)

T2 : Reference Temperature Ambient in 0C

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Ft :Cable ampacity correction factor

Cable grouping correction factor is depend on the particular method of installation

in the ladder or tray or if direct buried. Here is the sample of cable grouping

correction factor table as per PT. Sumi Indo KabelTbk. (a cable manufacturer)

catalogue:

Table 4.1 Correction factor table for multi-core cable grouping

4.2.2 Resistance Cable Data and Resistance Correction Factor When the ambient temperature value is different with ambient temperature

condition of resistance data as per manufacturer/catalogue data, resistance

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correction factor is applied to correct the resistance cable data. The formula of

resistance correction factor is shown below:

F! = 1+ (T! T!)! (4-3)

where:

T1 : New Conductor ambient temperature in oC

T0 : Temperature resistance design as per manufacture/ catalogue in oC

: 0.00393 for copper

Fr : Resistance correction factor

The corrected cable resistance can be achieved by the following formula:

R! = !F!!!x!!R! (4-4)

Where:

R : Corrected cable resistance in Ohm/km

R0 : Resistance cable data as per manufacture in Ohm/km

4.2.3 Multiplying Factor The multiplying factor will be based on NFPA 70 Requirements, which is:

! Clause 210.19(A)(1) Branch circuit conductors shall have an ampacity not less than the maximum load

to be served. Where a branch circuit supplies continuous loads or any combination

of continuous and non-continuous loads, the minimum branch circuit conductor

size, before the application of any adjustment or correction factors, shall have an

allowable ampacity not less than the non-continuous load plus 125 percent of the

continuous load

! Clause 215.2(A)(1)

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Feeder conductors shall have an ampacity not less than required to supply the load

as computed in parts II, III and IV of article 220. The minimum feeder circuit

conductor size, before the application of any adjustment or correction factors,

shall have an allowable ampacity not less than the non-continuous load plus 125

percent of the continuous load.

! Clause 215.2(B)(1)

The ampacity of feeder conductors shall not be less than the sum of the nameplate

ratings of the transformer supplied when only transformer is supplied.

! Clause 215.2(B)(2)

The ampacity of feeders supplying a combination of transformer and utilization

equipment shall not be less than the sum of the nameplate rating of the

transformer and 125 percent of the designed potential load of the utilization

equipment that will be operated simultaneously

! Clause 430.22(A)

Branch circuit conductor that supply a single motor used in a continuous duty

application shall have ampacity of not less than 125 percent of the motors full

load current rating.

! Clause 445.13

The ampacity of the conductors from the generator terminal to the first

distribution device(s) containing over current protection shall not be less than 115

percent of the nameplate current rating of the generator

Hence the multiplying factor can be concluded as:

! Multiplying factor (MF) for motor = 1.25

! Multiplying factor for generator = 1.15

! Multiplying factor for distribution board or lighting panel = 1.25

! Multiplying factor for static load = 1

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4.2.4 Full Load Current 4.2.4.1 Generator The Full load current and the design current for generator is calculated using the

formula:

I!" != !!!"#!!!!"""!!.!!!!.!"#!!

(4-5)

I! = !MF!"#!x!I!" (4-6)

= 1.15 xI!"

where:

I! : Design Current (A)

I!" : Full load current (A)

P!"# : Generator power (kW)

V!! : Line to line voltage (V)

cos! : Generator power factor

MF!"# : Multiplying factor for generator

4.2.4.2 Motors The Full load current and the design current for motors is calculated using the

formula:

I!" != ! !!!!!!"""!!.!!!!.!.!"#!! (4-7)

I! != !MF!"#"$!x!I!" (4-8)

= 1.25 xI!"

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where:



P! : Motor power (kW)


cos! : Motor power factor

: Motor efficiency

MF!"#"$ : Multiplying factor for motor

4.2.4.3 Transformers The Full load current and the design current for transformer is calculated using the

formula:

I!" != ! !!"!!!!"""!!.!!! (4-9)

I! = !MF!"#$%!x!I!" (4-10)

= 1.00 xI!"

where:


I!" : Full load current (Amp)

S!" : Transformer power (KVA)

V!! : Line to line voltage (Volts)

MF!"#$% : Multiplying Factor for Transformers

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4.2.4.4 Distribution Board / Panel The Full load current and the design current for distribution panel is calculated

using the formula:

I!" != ! !!"!!!!"""!!.!!!!.!"#!! (4-11)

I! = !MF!"!x!I!" (4-12)

= 1.25 xI!"

where:



P!" : Distribution board/panel power (kW)


cos! : Distribution board/panel power factor

MF!" : Multiplying factor for distribution board

4.2.4.5 Static Load The Full load current and the design current for static load is calculated using the

formula:

I!" != ! !!"#"$%!!.!!!!.!.!"#!! (4-13)

I! = !MF!"#"!x!I!" (4-14)

= 1.00 xI!"

where:


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P!"#"$% : Static load (kW)


cos! : Static load power factor

: Static load efficiency

MF!"#" : Multiplying factor for static load

4.2.5 Minimum cable size based on cable ampacity Cable ampacity is corrected by derated factor and the deratedampacity shall be

larger than the full load current.

I! != ! I!!x!F! > I!" (4-15)

where:

I! : Corrected cable ampacity (A)

I! : Current carrying capacity (A)

F : Derating factor


4.2.6 Number of Cable calculation To fulfill the full load current, the number of cable (number of pulling) is

calculated using the formula:

! = ! !!"!! (4-16)

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where:

! : Number of cables used

I! : Corrected cable ampacity (A)


4.2.7 Voltage drop calculation 4.2.7.1 Permissible Voltage Drop The maximum permissible voltage drop along the length of the cable with

reference to the nominal supply voltage is:

Table 4.2 % Voltage Drop for typical loads (referred to: UPD-TJ-P2-EL-PH-0101)

Load Types % Voltage Drop

Motors 5% running at full load 15 % on starting

Feeders 5% at full load between the MCC and the load terminals 2%

between MCC and a distribution board

Lighting 3% between lighting distribution board and most distant lighting

fixture

4.2.7.2 AC voltage drop at steady state The steady state voltage drop for AC system is given by the following formula:

V! != !k. I!"!(R. cos!!+ !X. sin!). !!""" ! .!""%! ! .

!! (4-17)

V! ! !V!"#$%

where:

V!"#$% : Specified allowable voltage drop

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V! : Voltage drop (%)

V : Voltage (V); line-to-line voltage for 3-phase system, or line-to- neutral voltage for 1-phase system


R : Resistance of the cable (Ohm per 1000 m)

X : Reactance of the cable (Ohm per 1000 m)

cos! : Power factor

L : Cable length

n : Number of cable in parallel

k : Constant; 3 for 3-phase system, and 2 for 1-phase system

Cable size shall be upgraded to bigger size or add more number of cables in

parallel when VDis greater than the specified allowable voltage drop value.

4.2.7.3 AC voltage drop at starting The voltage drop for AC system during motor starting is given by the following

formula:

V!"# != !k. I!"!(R. cos!!" !+ !X. sin!!"). !!""" ! .!""%! ! .

!! (4-18)

V!st! !V!"#$%

where:

V!"#$% : Specified allowable voltage drop

V!st : Motor starting voltage drop (%)

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V : Voltage (V); line-to-line voltage for 3-phase system, or line-to- neutral voltage for 1-phase system

I!" : Motor starting current (A)

R : Resistance of the cable (Ohm per 1000 m)

X : Reactance of the cable (Ohm per 1000 m)

cos!!" : Motor starting power factor

L : Cable length

n : Number of cable in parallel

k : Constant; 3 for 3-phase system, and 2 for 1-phase system

The value of motor starting current is as below or based on Vendor datasheet.

I!" = 7 x IFL (for LV Motors up to 11 kW)

I!" = 6 x IFL (for LV Motors above 11 kW)

I!" = 5 x IFL (for all MV Motors)

4.2.7.4 DC voltage drop Based on Ohm Law, cable and wire voltage drop for DC cable are:

V! = !!!!!!!!!!!!!!!"!"""!!!! (4-19)

where:

V! : Voltage Drop across the cable (Volt)

R! : Cables Resistance (Ohm/Km)

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L : Estimated Cable Length (M)

I!" : Full Load Current (Ampere)

n : Number of parallel conductors

V!" = !!!!!!""%!!" (4-20)

where:

V!" : Allowable percentage of Voltage Drop (%)

V!" : Nominal Voltage (Volt)

4.2.8 Short circuit thermal withstand capacity Short circuit at load can be calculated by the equation below:

!!" = ! !!"!"""!!!!!" (4-21)

where:

!!" : Short Circuit Current (kA)

I!" : Full Load Current (A)

!!" : Sub-transient reactance for motor (p.u)

The minimum conductor size of LV cables are calculated by formula shown

below which is based on ANSI/IEEE Std 242-2001:

!!

!x!t = 0.0297 x!log !!"!!"#!!!!"# (4-22)

or

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! !" = !!!!!!"""!!!

!.!"#!!! !!"# !!"!!"#!!!!"#!

!""" (4-23)

!!" ! !!

where:

A : Min. cable size cross sectional area (circular mils)

I : Max. short circuit current (A)

T : Short circuit duration time (sec)

Tc : Max. permissible continuous operating temp. (90oC : XLPE

Cable)

Tsc : Max. permissible temp. at short circuit (250oC : XLPE Cable)

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CHAPTER V

CABLE SIZING CALCULATION

5.1 Basic Criteria

The following criteria and environment condition is used for cable sizing

calculation;Criteria is based on standard documents, cable catalogs, and client's

specification. The criterion consist of:

! Steel Wire Armor (SWA) - Low Smoke Free Halogen (LSFH) cables is sized

based on 90C insulation temperature and 40C ambient.

! The power and control cables are Steel Wire Armor (SWA) cable, copper

conductor, Cross-linked polyethylene (XLPE) insulated

! The cable data for resistance, reactance and ampacity of cable is taken from

vendor catalog (Cable of PT. Sumi Indo KabelTbk.)

! Maximum service temperature of conductor with XLPE insulation: 90 C.

! Maximum short circuit condition of temparature of conductor with XLPE

insulation: 250 C

! Installation in open air is on cable tray (touching) (referred to PT. Sumi Indo

KabelTbk. Low Voltage Cable Catalog)

5.2 Motor Load

5.2.1 Load Specification Consider 482-HM-04A-P, a Depropanizer Condenser Fan Motor A which is

connected using XLPE/SWA/LSFH Cable to 360 ES 03 LPG/OTF 400 V

Switchgear. The specification of the Fan Motor is given below:

Table 5.1 Depropanizer Condenser Fan Motor A (482-HM-04A-P) specification

Parameters Value

Power Rating 30 KW

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Voltage 400 V

Efficiency at full load 0.92

Power Factor at full load 0.86

Power Factor at starting 0.3

Multiplying Factor 1.25

5.2.2 Cable Specification

Cable used for Depropanizer Condenser Fan Motor A (482-HM-04A-P) is a 0.6/1 kV

- XLPE/SWA/LSFH 3/C # 25 mm2. The cable length is set to be 225 m (200m + 25 m

of contingency).The specification of the cable is described as follows:

Table 5.2 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2 specification

Parameters Value

Size 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2

Conductor Size (Kcmil) 50

Ampacity in Air (A) 153

Ampacity in Ground (A) 111

R (ohm / 1000 m) 0.727

X (ohm / 1000 m) 0.0779

Overall Diameter (mm) 27.5

Approx. Weight (kg/km) 1840

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5.2.3 Cable Sizing Calculation

5.2.3.1 Cable Ampacity Correction Factor

Referring to equation (4-2), The T1 which is the new conductor ambient temperature

is set to be 40oCand T2 which is the reference ambient temperature is 30oC, referring

to PT. Sumi Indo Kabel Low Voltage Catalog, the temperature correction factor is

calculated as follows:

F! = !!!!!!!!!!! =!"!!!"!"!!" = !0.91 (5-1)

The installation assumption of the cable are using cable tray, number of tray is 2 and

the number of cable in each tray is 4, from the Table 4.1, F!is 0.77 (referred to PT. Sumi Indo Kabel Low Voltage Catalog)

Table 5.3 Correction factor table for multi-core cable grouping perforated trays

Since F!is 0.77 and F! is 0.91, referring to equation (4-1), the overall correction factor is equal to:

F = F!!!x!F! = 0.77!x!0.91! = !0.7 (5-2)

5.2.3.2 Resistance Cable Data and Resistance Correction Factor

Resistance of cable is provided at 20oC (referred to PT. Sumi Indo Kabel Low

Voltage Cable Catalog),the ambient temperature is set to be at 40oC. Referring to

equation (4-3), The resistance correction factor is:

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F! = 1+ (T! T!)!

F! = 1+ 0.00393!x(40 20)!

F! = 1.079 (5-3)

Referring to equation (4-4), and Table 5.2 for the R! value,

R! = !F!!!x!!R!

R! = !1.079!!!0.727

R! = !0.784!!!/!" (5-4)

5.2.3.3 Motor Full Load Current

Referring to equation (4-6), the Motor full load current can be calculated as follows:

I!" != !P!!x!1000

3!.V!!!. . cos!

I!" != ! !"!!!!"""!!!!!!""!!!!.!"!!!!.!!= 53.48 A (5-5)

Referring to equation (4-7),

I! = !MF!"#"$!x!I!"

I!= 1.25 x 53.48 A = 66.85 A (5-6)

5.2.3.4 Minimum cable size based on cable ampacity

Cable ampacity is corrected by Cable ampacity correction factor (F). From calculation

(5-2), F is equal to 0.7. Referring to equation (4-15) and Table 5.2, I! is the cable ampacity in air and equal to 153 A. The Corrected cable ampacity (I!) can be calculated as follows:

I! != ! I!!x!F

I! != !153!x!0.7!!

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I! != 107.55 A (5-7)

Since the system only used 1 cable, hence I!is equal to 107.55 A. Otherwise, I!should be multiplied by the number of cable used in the system. Referring to calculation (5-

5), I!"is equal to 53.48 A. By equation (4-15), the corrected cable ampacity (I!) must be larger than the full load current(I!").

I! > I!"

107.55!!! > !53.48!! (5-8)

By this condition, 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2 suits the cable

ampacity for the system.

5.2.3.5 Number of Cable

To fulfill the full load current referring to equation (4-16), the number of cable is

calculated as follows:

! = ! !!"!!

! = ! 53.48107.55

! = !0.49 1 (5-9)

The number of 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2cable used is 1.

5.2.3.6 Voltage drop calculation

5.2.3.6.1 AC voltage drop at steady state

Referring to equation (4-17), the voltage drop at steady state are calculated as follows:

V! != !k. I!"!(R. cos!!+ !X. sin!).L

1000 ! .100%V ! .

1n

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V! != ! 3!!!53.48!!![(0.784!!!0.88) !+ (0.0779!!! sin (cos!! 0.88)]!!!2251000 !!

!100%400 !!!

11

V! != !3.789!% (5-10)

From Table 4.2, the %voltage drop as per specification for motor running is 5%

V! ! !V!"#$%

3.789!%!! !5!% (5-11)

By this condition, 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2 suits the ac voltage

drop steady state criteria for the system.

5.2.3.6.2 AC voltage drop at starting

Referring to equation (4-18), the voltage drop at starting are calculated as follows:

V!"# != !k. I!"!(R. cos!!" !+ !X. sin!!").L

1000 ! .100%V ! .

1n

V!"# != 3!!!53.48!!![(0.784!!!0.3) !+ (0.0779!!!0.95)]!!!2251000 !!

!100%400 !!!

11

V!"# != !12.09!% (5-12)

From Table 4.2, the %voltage drop as per specification for motor starting is 15%

V!st! !V!"#$%

12.09!% !15!% (5-13)

By this condition, 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2 suits the ac voltage

drop starting criteria for the system.

5.2.3.7 Short circuit thermal withstand capacity

Referring to equation (4-21), short circuit at load can be calculated as follows:

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!!" = !!!"

1000!!!!!"

!!" = !53.48

1000!!!0.3

!!" = !0.178!!" (5-14)

To calculate the maximum short circuit current, referring to equation (4-23)

! !" = !!!!!1000!!!

!.!"#!!! !"# !!"!!"#!!!!"#!

1000

! !" = !50!!!1000!!! !.!"#!!! !"#

!"#!!"#!"!!"#

!.!"1000

! !" = !8.994!!"! (5-15)

!!" ! !!

0.178!!" !8.994!!"! (5-16)

By this condition, 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2 suits the short circuit

current criteria for the system.

5.2.4 Cable Selection

Based on the calculation of (5-8), (5-11), (5-13) and (5-16), all of the cable criteria

conditions are fulfilled by the 0.6/1 kV - XLPE/SWA/LSFH 3/C # 25 mm2 cable.

Hence, the cable is suitable to be used for Depropanizer Condenser Fan Motor A

(482-HM-04A-P).

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5.3 Feeder Load

5.3.1 Load Specification

Consider 339-OEH-01A, a VRU Compressor A - Lube Oil Heater which is connected

using XLPE/SWA/LSFH Cable to 360 ES 03 LPG/OTF 400 V Switchgear. The

specification of the Heater is given below:

Table 5.4 VRU Compressor A - Lube Oil Heater (339-OEH-01A) specification

Parameters Value

Power Rating 3 KW

Voltage 400 V

Efficiency at full load 1

Power Factor at full load 0.85

Power Factor at starting N/A

Multiplying Factor 1

5.3.2 Cable Specification

Cable used for VRU Compressor A - Lube Oil Heater (339-OEH-01A)is a 0.6/1 kV -

XLPE/SWA/LSFH 3/C # 2.5 mm2. The number of cable is set to be 1. The cable

length is set to be 195 m (180m + 15 m of contingency). The specification of the

cable is described as follows:

Table 5.5 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2 specification

Parameters Value

Size 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2

Conductor Size (Kcmil) 5

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Ampacity in Air (A) 37

Ampacity in Ground (A) 32

R (ohm / 1000 m) 7.41

X (ohm / 1000 m) 0.0961

Overall Diameter (mm) 16.5

Approx. Weight (kg/km) 485

5.3.3 Cable Sizing Calculation

5.3.3.1 Cable Ampacity Correction Factor

The installation assumption is using the same installation assumption as for motor

load, which is using cable tray. The number of tray is 2 and the number of cable in

each tray is 4, from the Table 4.1, F!is 0.77 (referred to PT. Sumi Indo Kabel Low Voltage Catalog)

Referring to equation (5-1), the F! is equal to 0.91. Referring to equation (5-2), the overall correction factor (F) is equal to 0.7.

5.3.3.2 Resistance Cable Data and Resistance Correction Factor

Using the same calculation as in calculation (5-3), the F!, which is the resistance correction factor is equal to 1.079. Using the equation (4-4), and Table 5.5 for the R! value, the corrected cable resistance for 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2

cable is calculated as follows

R! = !F!!!x!!R!

R! = !1.079!!!7.41

R! = !7.99!!!!/!" (5-17)

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5.3.3.3 Feeder Full Load Current

Referring to equation (4-6), the Feeder full load current can be calculated as follows:

I!" != !P!!x!1000

3!.V!!!. . cos!

I!" != ! !!!!!"""!!!!!!""!!!!!!!!.!" = 5.094 A (5-18)

Referring to equation (4-7),

I! = !MF!""#"$!x!I!"

I! = 1 x 5.094A = 5.094 A (5-19)

5.3.3.4 Minimum cable size based on cable ampacity

Cable ampacity is corrected by Cable ampacity correction factor (F). From calculation

(5-2), F is equal to 0.7. Referring to equation (4-15) and Table 5.5, I! is the cable ampacity in air and equal to 37 A. The Corrected cable ampacity (I!) can be calculated as follows:

I! != ! I!!x!F

I! != !37!x!0.7!!

I! != 26 A (5-20)

Since the system only used 1 cable, hence I!is equal to 26 A. Otherwise, I!should be multiplied by the number of cable used in the system. Referring to calculation (5-18),

I!" is equal to 5.094 A. By equation (4-15), the corrected cable ampacity (I!) must be larger than the full load current (I!").

I! > I!"

26!!! > 5.094! (5-21)

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By this condition, 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2 suits the cable

ampacity for the system.

5.3.3.5 Number of Cable

To fulfill the full load current referring to equation (4-16), the number of cable shall

be:

! = ! !!"!!

! = !5.0926

! = !0.19 1 (5-22)

The number of 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2cable used is 1.

5.3.3.6 Voltage drop calculation

5.3.3.6.1 AC voltage drop at steady state

Referring to equation (4-17), the voltage drop at steady state are calculated as follows:

V! != !k. I!"!(R. cos!!+ !X. sin!).L

1000 ! .100%V ! .

1n

V! != ! 3!!!5.094!!![(7.99!!!0.85) !+ (0.0961!!! sin (cos!! 0.85)]!!!1951000 !!

!100%400 !!!

11

V! != !2.944!% (5-23)

From Table 4.2, the %voltage drop as per specification for feeder running is 5%

V! ! !V!"#$%

2.944!!%!! !5!% (5-24)

By this condition, 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2 suits the ac voltage

drop steady state criteria for the system.

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5.3.3.7 Short circuit thermal withstand capacity

Referring to equation (4-21), short circuit at load can be calculated as follows:

!!" = !!!"

1000!!!!!"

!!" = !5.094!

1000!!!0.3

!!" = !0.169!!" (5-25)

To calculate the maximum short circuit current, referring to equation (4-22)

! !" = !!!!!1000!!!

!.!"#!!! !"# !!"!!"#!!!!"#!

1000

! !" = !5!!!1000!!! !.!"#!!! !"#

!"#!!"#!"!!"#

!.!"1000

! !" = !0.8994!!"! (5-26)

!!" ! !!

0.169!!" !0.8994!!"! (5-27)

By this condition, 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2 suits the short circuit

current criteria for the system.

5.3.4 Cable Selection

Based on the calculation of (5-21), (5-24) and (5-27), all of the cable criteria

conditions are fulfilled by the 0.6/1 kV - XLPE/SWA/LSFH 3/C # 2.5 mm2 cable.

Hence, the cable is suitable to be used for VRU Compressor A - Lube Oil Heater

(339-OEH-01A).

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CHAPTER VI

CONCLUSION

The conclusion that can be summarize from this cable sizing calculations are:

! Cable sizing for cables run from 400 V Switchgear and MCC Process 360-ES-03

to the loads already meet the requirement of allowable steady state current

carrying capacity. Where the condition of I! > I!" is fulfilled.


to the loads already meet the requirement of allowable voltage drop during steady

state and transient (motor starting) condition. Where the condition of

V! ! !V!"!"#andV!"# ! !V!"#$% are fulfilled.


to the loads already meet the requirement of short circuit current withstand

capacity. Where the condition of !!" ! !! is fulfilled.

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REFERENCES

Tripatra Engineering. Cable Sizing and Volt Drop Calculation. Document no:

DMAN-TPE-ENGELC-027.

Tripatra Engineering. Cable Tray Sizing and Selection. Document no: DMAN-TPE-

ENGELC-028.

CM Corporation. Current carrying capacity of copper conductors. Retrieved on 20th

March 2015 from http://www.cmcorporation.com/conductors/current-carrying-

capacity-of-copper-conductors

EPB. Fundamentals of electricity: Voltage drop. Retrieved on 18th March 2015 from

http://epb.apogee.net/foe/frvd.asp.

Tripatra.Tripatras profile. Retrieved on 18th March 2015 from

http://intranet.tripatra.com/default.aspx

Electerical Engineering Portal.Sizing of power cables. Retrieved on 19th March 2015

fromhttp://electrical-engineering-portal.com/sizing-of-power-cables-for-circuit-

breaker- controlled-feeders-part-1

DP Kothari and I J Nagarath. 2003. Modern Power System Analysis 3rd Edition.

Tata McGraw-Hill Education.

0.6 kV CONTINUOUS ALUMINUM CORRUGATED ARMORCorrection Factor

: 40 Ft - Temp Correction Factor : 0.91Fg - Cable Group Cor. Fact (In Cable Tray): 0.77 cable&tray&

number&of&tray&2: 30 Fr - Resistance Cor. Fact : 1.079 number&of&cable&4: 90: 20: 250: 50

Ia/In CURRENT Ic Fg Ft Id Ro Fr R X(@50Hz) MAX Vdn VdnMAX Vdn Vdn

SC @LOAD TIME

VALUE UNIT (VOLT) UNIT (pu) (pu) (pu) (pu) (A) (A) (pu) (A) (m) (no) (m) (Type) COND SIZE (kcmil) (A) (pu) (pu) (A) (ohm/km) (ohm/km) (ohm/km) (%) (%) (%) (%) (kA) (s) Tsc (oC) Tc (oC)

1 M 482HM04A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& DEPROPANIZER&CONDENSER&FAN&MOTOR&A 4827HM704A& 30 kW 400 V 0.92 0.88 0.3 1.25 53.48 66.86 7.5 401.14 225 1 225 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&25&mm2 50 153 0.77 0.91 107.55 0.73 1.08 0.78 0.08 5 3.79 15 12.10 0.3 0.18 0.16 250 902 M 482HM04B&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& DEPROPANIZER&CONDENSER&FAN&MOTOR&B 4827HM704B& 30 kW 400 V 0.92 0.88 0.3 1.25 53.48 66.86 7.5 401.14 280 1 280 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&35&mm2 68 188 0.77 0.91 132.15 0.52 1.08 0.57 0.08 5 3.46 15 11.74 0.3 0.18 0.16 250 903 M 482PM01A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& DEETHANIZER&REFLUX&PUMP&MOTOR&A 4827PM701A 22 kW 400 V 0.91 0.9 0.3 1.25 38.77 48.46 7.4 286.91 280 1 280 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&25&mm2 50 153 0.77 0.91 107.55 0.73 1.08 0.78 0.08 5 3.48 15 10.77 0.3 0.13 0.16 250 904 M 482PM01B&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& DEETHANIZER&REFLUX&PUMP&MOTOR&B 4827PM701B 22 kW 400 V 0.91 0.9 0.3 1.25 38.77 48.46 7.4 286.91 280 1 280 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&25&mm2 50 153 0.77 0.91 107.55 0.73 1.08 0.78 0.08 5 3.48 15 10.77 0.3 0.13 0.16 250 905 M 482PM02A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& DEPROPANIZER&REFLUX&PUMP&MOTOR&A 4827PM702A 36 kW 400 V 0.94 0.89 0.3 1.25 62.11 77.64 7.4 459.62 280 2 280 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&16&mm2 27 118 0.77 0.91 165.89 1.15 1.08 1.24 0.08 5 4.29 15 12.44 0.3 0.21 0.16 250 906 M 482PM02B&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& DEPROPANIZER&REFLUX&PUMP&MOTOR&B 4827PM702B 36 kW 400 V 0.94 0.89 0.3 1.25 62.11 77.64 7.4 459.62 280 2 280 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&16&mm2 27 118 0.77 0.91 165.89 1.15 1.08 1.24 0.08 5 4.29 15 12.44 0.3 0.21 0.16 250 907 M 482PM04A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& DEBUTANIZER&REFLUX&PUMP&MOTOR&A 4827PM704A 45 kW 400 V 0.95 0.87 0.3 1.25 78.59 98.23 7.6 597.26 280 1 280 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&50&mm2 76 219 0.77 0.91 153.94 0.39 1.08 0.42 0.07 5 3.81 15 14.24 0.3 0.26 0.16 250 908 M 332HM02A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& CRUDE&OIL&RUNDOWN&COOLER&FAN&MOTOR&A 3327HM702A 15 kW 400 V 0.92 0.88 0.3 1.25 26.74 33.43 7.5 200.57 165 1 165 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&10&mm2 20 88 0.77 0.91 61.86 1.83 1.08 1.97 0.08 5 3.39 15 9.58 0.3 0.09 0.16 250 909 M 339PM01A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& FLASH&GAS&COMPRESSOR&A&7&COMPRESSOR&PRE7LUBE&OIL&PUMP&MOTOR 3397PM701A 2.5 kW 400 V 0.83 0.88 0.3 1.25 4.94 6.18 7.6 37.55 250 1 250 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&2.5&mm2 5 37 0.77 0.91 26.01 7.41 1.08 7.99 0.10 5 3.79 15 10.12 0.3 0.02 0.16 250 9010 F 339OEH01A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& VRU&COMPRESSOR&A&7&LUBE&OIL&HEATER 3397OEH701A 3 kW 400 V 1 0.85 N/A 1 5.09 5.09 N/A N/A 195 1 195 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&2.5&mm2 5 37 0.77 0.91 26.01 7.41 1.08 7.99 0.10 5 2.94 15 N/A 0.3 0.02 0.16 250 9011 M 332PM01A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& CRUDE&OIL&RUNDOWN&PUMP&MOTOR&A 3327PM701A 36 kW 400 V 0.94 0.89 0.3 1.25 62.11 77.64 7.4 459.62 210 6 210 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&25&mm2 50 153 0.77 0.91 645.27 0.73 1.08 0.78 0.08 5 0.69 15 2.16 0.3 0.21 0.16 250 9012 M 332PM01B&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& CRUDE&OIL&RUNDOWN&PUMP&MOTOR&B 3327PM701B 36 kW 400 V 0.94 0.89 0.3 1.25 62.11 77.64 7.4 459.62 210 1 210 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&25&mm2 50 153 0.77 0.91 107.55 0.73 1.08 0.78 0.08 5 4.14 15 12.94 0.3 0.21 0.16 250 9013 M 339PM03A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& FLASH&GAS&COMPRESSOR&A&7&ENGINE&PRE&LUBE&OIL&PUMP&MOTOR 3397PM703A 3.7 kW 400 V 0.84 0.88 0.3 1.25 7.22 9.03 7.7 55.63 250 1 250 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&4&mm2 8 42 0.77 0.91 29.52 4.61 1.08 4.97 0.09 5 3.46 15 9.50 0.3 0.02 0.16 250 9014 M 381PM02&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& CRUDE&OIL&RE7RUN&PUMP&MOTOR 3817PM702 22 kW 400 V 0.91 0.9 0.3 1.25 38.77 48.46 7.4 286.91 385 1 385 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&25&mm2 50 153 0.77 0.91 107.55 0.73 1.08 0.78 0.08 5 4.78 15 14.81 0.3 0.13 0.16 250 9015 M 436HM01A&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& REGENERATION&GAS&COOLER&FAN&MOTOR&A 4367HM701A 2.5 kW 400 V 0.83 0.88 0.3 1.25 4.94 6.18 7.6 37.55 250 1 250 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&2.5&mm2 5 37 0.77 0.91 26.01 7.41 1.08 7.99 0.10 5 3.79 15 10.12 0.3 0.02 0.16 250 9016 M 436HM01B&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& REGENERATION&GAS&COOLER&FAN&MOTOR&B 4367HM701B 2.5 kW 400 V 0.83 0.88 0.3 1.25 4.94 6.18 7.6 37.55 250 1 250 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&2.5&mm2 5 37 0.77 0.91 26.01 7.41 1.08 7.99 0.10 5 3.79 15 10.12 0.3 0.02 0.16 250 9017 F 332VT027P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& LP&ELECTROSTATIC&TREATER 332&7VT702 30 kW 400 V 1 0.8 N/A 1 54.13 54.13 N/A N/A 160 1 160 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&25&mm2 50 153 0.77 0.91 107.55 0.73 1.08 0.78 0.08 5 2.53 15 N/A 0.3 0.18 0.16 250 9018 F 339OEH01B&7&P OTF/LPGF&&400&V&SWITCHGEAR&&&MCC&PROCESS& 3607&ES7&03& VRU&COMPRESSOR&B&7&LUBE&OIL&HEATER 3397OEH701B 3 kW 400 V 1 0.85 N/A 1 5.09 5.09 N/A N/A 195 1 195 0.6/1&kV&7&XLPE/SWA/LSFH&3/C&2.5&mm2 5 37 0.77 0.91 26.01 7.41 1.08 7.99 0.10 5 2.94 15 N/A 0.3 0.02 0.16 250 90

NO. LOAD TYPE CABLE TAG NUMBER

TEMPERATURE CONDITION

POWER RATING CABLE SIZECABLE AMPACITY LOAD SCSTARTING CURRENT

Environment ConditionT1 - T amb (C)

Design Cable- Catalogue T2 - T amb (C) (Ampacity) Tc - T Rating of Cond. (C) To - T amb (C) (Resistance) Tsc- Tmax at SC (C)Frequency for Reactance (Hz)

FROM CABLE DATA RUNNINGTO

EGUIPMENT TAG NUMBERDESCRIPTION

EGUIPMENT TAG NUMBERDESCRIPTION

ESTIMATED LENGTH

TOTAL LENGTH

DESIGN CURRENT

STARTING SC CAPACITY OF CONDUCTORPF. AT START

NUMBER OF CABLEVOLTAGE( Vn)

EFF. AT FULL LOAD

PF. AT FULL LOAD

FULL LOAD CURRENT

(IFL)

MULTIPLY FACTOR

LOAD Xd"

MINIMUM CONDUCTOR

kcmill

1 8.991 12.231 8.991 8.992 4.862 4.862 13.671 3.601 0.901 0.901 8.991 8.991 1.441 8.991 0.901 0.901 8.991 0.90

SHORT CIRCUIT CAPACITY OF CONDUCTOR (kA) @ 0.16 S

SC CAPACITY OF CONDUCTOR

Head Office/Factory :Jl. Gatot Subroto Km 7,8 Kel Pasir Jaya, Kec. Jati Uwung, Tangerang 15135-IndonesiaPhone : (62-21) 5922404, 5928066 (Hunting) Fax. : (62-21) 59301979, 5922576, 5901469

c Copyright Sumi Indo Kabel 2009

All rights reserved. This catalogue is the copyright work of PT. Sumi Indo Kabel Tbk. No part of this publication may be reproduced, stored in a retrieval system, or transmitted,in any form or by means, electronic, mechanical, photocopying, recording or otherwise, without prior permission of PT. Sumi Indo Kabel.

All information contained in this catalogue is believed to be accurate at the time issue. PT. Sumi Indo Kabel reserve the right to change information or specification at any timein the light of technical developments or revisions.

Issue : 3 Date: June 2009

Section 1 - Contents & Information

Low Voltage Catalogue Index Page Number

SECTION 1 - Contents & InformationIndex Page 11

Company Profile of PT. SUMI INDO KABEL Tbk 2

Cable Specification 3

SECTION 2 - PVC Insulated CablesUnarmoured Cables

450/750 Volts PVC Insulated Cables (Cu/PVC, NYA) 5

450/750 Volts PVC Insulated Cables (Flexible Cu/PVC, NYAF) 6

300/500 Volts PVC Insulated and PVC Sheathed Cables (PVC/PVC, NYM) 8

300/500 Volts PVC Insulated and PVC Sheathed Cables (Flexible PVC/PVC, NYMHY) 10

450/750 Volts PVC Insulated and PVC Sheathed Cables (Flexible PVC/PVC, NYYHY) 11

600/1000 Volts PVC Insulated and PVC Sheathed Cables (PVC/PVC, NYY) 18

600/1000 Volts PVC Insulated, Copper Tape Shielded and PVC Sheathed Cables (PVC/PVC-S, NYSY) 30

Armoured Cables

600/1000 Volts PVC Insulated, Steel Wire Armoured and PVC Sheathed Cables (PVC/SWA/PVC, NYRY) 35

600/1000 Volts PVC Insulated, Flat Steel Wire Armoured and PVC Sheathed Cables (PVC/FSWA/PVC, NYFGbY) 41

600/1000 Volts PVC Insulated, Double Steel Tape Armoured and PVC Sheathed Cables (PVC/DSTA/PVC, NYBY) 46

SECTION 3 - XLPE Insulated CablesUnarmoured Cables

600/1000 Volts XLPE Insulated and PVC Sheathed Cables (XLPE/PVC, N2XY) 52

600/1000 Volts XLPE Insulated, Copper Tape Shielded and PVC Sheathed Cables (XLPE/PVC-S, N2XSY) 62

Armoured Cables

600/1000 Volts XLPE Insulated, Steel Wire Armoured and PVC Sheathed Cables (XLPE/SWA/PVC, N2XRY) 67

600/1000 Volts XLPE Insulated, Flat Steel Wire Armoured and PVC Sheathed Cables (XLPE/FSWA/PVC, N2XFGbY) 73

600/1000 Volts XLPE Insulated, Double Steel Tape Armoured and PVC Sheathed Cables (XLPE/DSTA/PVC, N2XBY) 78

SECTION 4 - General InformationCurrent Carrying Capacity for XLPE Insulated cable (single core) 83

Current Carrying Capacity for XLPE Insulated cable (multicore) 84

Current Carrying Capacity for PVC Insulated cable (single core) 85

Current Carrying Capacity for PVC Insulated cable (multicore) 86

Correction factor of Curent carrying capacity 87Cable arrangement for Installation purpose 88Explanation of Flame Retardant / Fire Resistant Characteristic 91

Page - 1


Page - 2

1

Company Profile of PT. Sumi Indo Kabel Tbk

The Company was established on July 23, 1981 with its Head Officeand Factory located in Tangerang, Banten. The Company is engaged in the manufacturing of Power Cable, Telecommunication Cable &Fiber Optic, and Copper Wire.

The Company was listed in the Jakarta and Surabaya Stock Exchangesin 1990. The Company became Foreign Capital Investment (PMA)in 1994, with the participation of Sumitomo Electric Industries, Ltd.,Japan, one of the biggest in cable and wire industries in the world. Thename of Company became PT Sumi Indo Kabel Tbk. since 1999.

The Company received official recognition of its quality managementsystem standard from SGS, certification ISO 9001 : 2000 for its PowerCable & Control Cable, Telephone Cable & Fiber Optic Cable, andCopper Wire Rod in 2002. This was the first recognition in Indonesiafor Electric Cable and Wire industries.

Section 2 - PVC Insulated Cables Unarmoured Cables

450/750 V PVC INSULATED WIRE (Cu/PVC)acc. to IEC 60227

Copper Conductor (Solid) PVC Insulation

Copper Conductor (Stranded) PVC Insulation

Colour of Insulation : Red, White, Black, Green, Brown, Blue, Yellow, Green-yellow

450/750 V PVC INSULATED WIRE (Cu/PVC Flexible)acc. to IEC 60227

Copper Conductor (Flexible) PVC Insulation

Colour of Insulation : Red, White, Black, Green, Brown, Blue, Yellow, Green-yellow

Page - 4

Note : Special application upon request* Available product in accordance to : SPLN or other requirement.* Tin coated Copper conductor.


1 Scope

2 Conductor

The conductor shall be solid, circular stranded or compacted stranded.

3 Insulation

4 Identification of cores

Number of core Identification of coresSingle core Black (Natural for XLPE insulated)Two cores Red, BlackThree cores Red, Yellow, BlueFour cores Red, Yellow, Blue, BlackFive core or more Black insulation with white numbered code.

5 Cabling and filling

6 Metallic Shielding (if required)The metallic shielding shall consist of either one or more Copper tapes or a concentric layer of copper wires.

7 Inner sheath (armour cable only).

8 Metallic armour

9 Outer sheath

The conductor shall be formed from plain annealed copper or aluminium complying with IEC 60228,ASTM B3 and B8.

The insulation shall be cross-linked polyethylene (XLPE) or Polivinyl chloride (PVC) in accordanceto IEC 60502-1.

The outer sheath shall consist of a thermoplastic compound such as polyvinyl chloride (PVC),polyethylene (PE), halogen free (LSOH), etc in accordance with IEC 60502-1.

Page - 3

The cores of all cables shall be identified by color or numbered printed on the surface of insulation inaccordance with the following sequence or other sequence.

The multi cores shall be laid up together with suitable filler to give the completed cable asubstantially circular cross section and bound with suitable binder tape.

The inner sheath shall consist of extruded thermoplastic compound such as :polyvinyl chloride(PVC), polyethylene (PE),halogen free (LSOH), etc in accordance to IEC 60502-1.

The metallic armour shall consist of single layer of round galvanized steel wire or flat galvanized steel wire and steel tape or double layer of galvanized steel tapes in accordance to IEC 60502-1.The armour of single core cables shall consist of single layer of aluminium wire or double layers ofaluminium tape as non magnetic material.

Cable Specification

These specification apply to material and constructions of cross-linked thermosetting polyethylene(XLPE) or Polivinyl chloride (PVC) insulated wire and cables for rated voltages 0.3/0.5 kV up to0.6/1(1.2) kV accordance to IEC 60502-1, Indonesia Electric Power Company (SPLN)

Section 2 - PVC Insulated CablesUnarmoured Cables

CONSTRUCTION TECHNICAL DATA Conductor : Plain Annealed Copper Voltage

(to IEC 60228 class 1 or 2) Uo/U - 450/750 V Insulation : PVC Compound type C Operating Temperature Colour Ident. : Red, White, Black, Green, Maximum 70C

Blue, Yellow, Green-yellow

1.5 1 / 1.38 1.38 0.7 3.0 22 12.1 0.011 2500

1.5 7 / 0.52 1.56 0.7 3.5 23 12.1 0.010 2500

2.5 1 / 1.78 1.78 0.8 4.0 33 7.41 0.010 2500

2.5 7 / 0.67 2.01 0.8 4.0 35 7.41 0.009 2500

4 1 / 2.26 2.26 0.8 4.5 49 4.61 0.0085 2500

4 7 / 0.85 2.55 0.8 4.5 52 4.61 0.0077 2500

6 1 / 2.77 2.77 0.8 5.0 69 3.08 0.0070 2500

6 7 / 1.04 3.12 0.8 5.0 72 3.08 0.0065 2500

10 1 / 3.57 3.57 1.0 6.0 113 1.83 0.0070 2500

10 7 / 1.35 4.05 1.0 6.5 119 1.83 0.0065 2500

16 7 / 1.70 5.10 1.0 7.5 179 1.15 0.0050 2500

25 7 / 2.13 6.39 1.2 9.0 277 0.727 0.0050 2500

35 7 / 2.52 7.56 1.2 10.5 377 0.524 0.0040 2500

50 19 / 1.83 9.15 1.4 12.5 530 0.387 0.0045 2500

70 19 / 2.17 10.85 1.4 14.0 727 0.268 0.0035 2500

95 19 / 2.52 12.60 1.6 16.5 985 0.193 0.0035 2500

120 37 / 2.03 14.21 1.6 18.0 1218 0.153 0.0032 2500

150 37 / 2.27 15.89 1.8 20.0 1522 0.124 0.0032 2500

185 37 / 2.52 17.64 2.0 22.0 1873 0.0991 0.0032 2500

240 61 / 2.26 20.34 2.2 25.5 2465 0.0754 0.0032 2500

300 61 / 2.52 22.68 2.4 28.0 3055 0.0601 0.0030 2500

400 61 / 2.86 25.74 2.6 31.5 3927 0.0470 0.0028 2500

Page - 5

V/5 min

Maximum AC

Test

Voltage

M.km

Thickness

Nominal

Resistance Resistance

wire

Conductor

of

Nominal No./

Diameter

Minimum

Insulation

Cross-

Diameter

of wire

(approx.)

Conductorsection Insulation

Weight

Nominal

Overall

/kmkg/kmmm

(Approx.)(Approx.)

No./mm

area (approx.)

mmmm mm

450/750 V PVC INSULATED WIRECU/PVC (IEC 60227)

Conductor

at 70Cat 20C

of Diameter of


CONSTRUCTION TECHNICAL DATA Conductor : Plain Annealed Copper Voltage

(to IEC 60228 class 5) Uo/U - 450/750 V Insulation : PVC Compound type C Operating Temperature Colour Ident. : Red, White, Black, Green, Maximum 70C

Blue, Yellow, Green-yellow

1.5 1.58 0.7 3.5 22 13.30 0.010 2500

2.5 0.26 2.04 0.8 4.0 34 7.98 0.009 2500

4 0.31 2.59 0.8 4.5 50 4.95 0.007 2500

6 0.31 3.46 0.8 5.5 75 3.30 0.006 2500

10 0.41 4.62 1.0 7.0 130 1.91 0.0056 2500

16 0.41 5.66 1.0 8.0 186 1.21 0.0046 2500

25 0.41 7.06 1.2 10.0 286 0.78 0.0044 2500

35 0.41 8.43 1.2 11.0 395 0.554 0.0038 2500

50 0.41 10.07 1.4 13.5 550 0.386 0.0037 2500

70 0.51 11.97 1.4 15.0 760 0.272 0.0032 2500

95 0.51 13.73 1.6 17.5 1008 0.206 0.0032 2500

120 0.51 15.53 1.6 19.5 1270 0.161 0.0029 2500

150 0.51 17.56 1.8 22.0 1605 0.129 0.0029 2500

185 0.51 19.16 2.0 24.0 1914 0.106 0.0029 2500

240 0.51 22.0 2.2 27.0 2491 0.0801 0.0028 2500

Page - 6

Maximum MinimumNominal Nominal

Thickness Overall

section Conductor

Nominal Diameter Insulation

Cross- of of Diameter of Resistance Resistance

Weight Conductor

0.26

at 70C

area (Approx.) (Approx.)(approx.)

mm mm kg/km /kmmm mm

(approx.)

Insulation wire at 20C

mm V/5 minM.km

Conductor AC

Maximum Test

Diameter Voltage

of wire

450/750 V PVC INSULATED WIRECU/PVC-Flexible (IEC 60227)


300/500 V PVC INSULATED AND PVC SHEATHED CABLESPVC/PVC (NYM) - IEC 60227 , SPLN 42-2

Conductor PVC Inner coveringPVC Insulation PVC Sheath

300/500 V PVC INSULATED AND PVC SHEATHED CABLESPVC/PVC Flexible (NYMHY) - IEC 60227 , SPLN 42-2

ConductorPVC Insulation PVC Sheath

450/750 V PVC INSULATED AND PVC SHEATHED CABLESPVC/PVC Flexible (IEC 60227, SPLN 42-6-3)

Tape (manufacturer's option)Conductor PVC Sheath

PVC InsulationFiller (Polyprophylene yarn,or extruded filler up

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