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AYTINTERNATIONALWLL

[2014]

[Cable Testing And Health

Monitoring][PROJECT: RGCP-385-Upgrading Ve!"i#$ Appr!a"%

&$'#e( in )er#%-*+

Building No. 9, Opposite Embassy of Federal Republic of Germany, Bin Omran,

P.O. Box 10161, Doha, Qatar Tel: +974 44660758 Fax: +974 44989886Web: www.aytme.com

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Ra' Ga' C!(pan$ Li(i#edPROJECT TITLE:RGCP-385 - UPGRADING VELOCITY APPROACH SYSTEM IN BERTH-2

,!" N!: AYT./&.012200 AYTIn#erna#i!na WLL Rei'i!n: 23

Page 4 *

METHOD OF STATEMENT FOR CABLE TESTING AND

HEALTH MONITORING AT RAS GAS

BY

AYT INTERNATIONAL WLL

IN

AUGUST 2014

* RE-I&&UE, OR TE&TING 01-A6g-01 A!7 Ra7e'% A7er

0 RE-I&&UE, OR TE&TING 0*-A6g-01 A!7 Ra7e'% A7er

2 I&&UE, OR TE&TING 29-A6g-01 A!7 Ra7e'% A7er

I&&UE, OR APPROVAL 29-A6g-01 A!7 Ra7e'% A7er

/AR ,E&CRIPTION ,ATE )Y C;, APV,APV, $

C%i$!da

A(ana

APV, $

RA&GA&

REVISIONS

CLIENT : Ra'Ga' C!(pan$ Li(i#ed

PROJECT: RGCP-385 - UPGRA,ING VELOCITY APPROAC; &Y&TE/ IN )ERT;-*

JO) NO : RGCP-385

,OC NO: AYT./&.012200

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Ra' Ga' C!(pan$ Li(i#edPROJECT TITLE:RGCP-385 - UPGRADING VELOCITY APPROACH SYSTEM IN BERTH-2

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METHOD OF STATEMENT FOR CABLE TESTING AND

HEALTH MONITORING

Sr. No. Contents Page No.

1.0 Purpose 04

2.0 Scope 04

3.0 Site Planning and Preparations 04

4.0 Test Instruments 05

5.0 Work et!odolog" 0#

5.1 Insulation $esistance easurement 0#

5.2 Tan %elta easurement &' Po(er Ca)le 0*

5.3 Ca)le +ault &ocali,ation-T%$ 10

#.0 Work /ecution Plan at $as as &N ert! 2 11

*.0 Saet" 13

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Ra' Ga' C!(pan$ Li(i#edPROJECT TITLE:RGCP-385 - UPGRADING VELOCITY APPROACH SYSTEM IN BERTH-2

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1.0 Purpose

The Objective is to carry out Non-Destructive Testing such as the Insulation

Resistance, TDR and Tan Delta Measurement as Diagnostic Test to assess overall

health of existing Low Voltage Power Cables. The insulation of the power cable over a

period of time deteriorates due to external and internal factors. This reduces the

reliability of the cable.

This document describes the method of above mentioned Measurement and the way to

interpret the results and give recommendations.

2.0 Scope

The scope of this document is to define the procedures for Insulation Resistance, TDR

and Tan Delta Measurement

Sr. No. AYT SCOPE OF WORKCHIYODA SCOPE OF

WORK

1

Complete electrical Testing (IR, TAN

DELTA, AND CABLE FAULT

LOCATION) & Final Report

Submission

Disconnection of cable ends and

tapping of naked ends (Under

RG Maintenance).

3.0 Site Planning and Preparations

The following activities are required on site before performing the Cable Integrity Test;

Arranging the gate pass of required Personnel and Testing Equipments supported by

Chiyoda Almana..

Arranging Safety Induction training, supported by Chiyoda Almana and Ras Gas .

Arranging the PTW, supported by Chiyoda Almana.

Opening of MCC, Panel, JBs and Isolation of existing Power Supply from both

ends, supported by Ras Gas.

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Ra' Ga' C!(pan$ Li(i#edPROJECT TITLE:RGCP-385 - UPGRADING VELOCITY APPROACH SYSTEM IN BERTH-2

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Grounding and Termination of existing cable if required, supported by AYT.

Existing Cable Test Report and Results if required, provided by Ras Gas

Securing the area during Testing by Chiyoda Almana/AYT.

Power Supply: 1 Phase, 250V, 5Amp AC to our equipments, supported by

Chiyoda Almana and Ras Gas.

Storage Area for our equipments (area required 1 x 1 m2) if the work goes for more

than one day.

Semi-Skilled Technician to be provided to help our engineer to carry out the tests.

4.0 Test Instruments

The following Instruments are needed to conduct the Insulation Resistance, TDR and

Tan Delta Measurement at site:

Sr. No. EQUIPMENTS MAKE SERIAL NO

1 Insulation Tester (MIT 520/2) MEGGER 110111/2845

2 Tan Delta Kit with VLF (HVA28TD) HVDSA G;2*0*0*)20*

3 Cable Fault Locator (T 905A) KEHUI 2011124699

4 Laptop (2000-2d06SE) HP 5CG3475GM8

5 Multimeter FLUKE 96500117

NOTE: We are going to use Laptop at site. So we need approval from RASGAS regarding this.

Calibration Certificates of Test Equipments to be provided by AYT.

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