Course Overview

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Underground Cable Fault Location Training Course

Course Duration: 1 Day
Location: Stockton-On-Tees High Voltage Training Centre (On-site also available)
Certificate Gained: PASS Certificate of Attendance
Entry Requirements:  Suitable for new people starting to cable test and carry out fault location work
Included: Course entry, lunch and refreshments (tea, coffee and juice), and printed course documentation
Reading Requirements: There are no peripheral reading requirements for this course
Course ID: BTAC020

Practical work is limited to small instruments within the classroom

Who is this course for?

The course is designed for those who are less experienced or new to cable testing and fault location. It will provide a significant step forward towards practical work under supervision.


The aim of this Foundation Underground Cable Fault Location course is to provide you with familiarity with cable fault characteristics and to provide an overview and a general understanding of the common methods and processes used for cable fault location of medium and high voltage cables. You will leave with an understanding of safety practices and facilities used for cable fault location.


Trainees will learn the optimum approach using a process-oriented technique. Using a standardised process gives back the minimum impact of test stress on the cable, a fully controlled impact of the process on the fault characteristics and gives repeatable and reliable results that will enable the new users to build on for the future.

The course provides an insight and general understanding of the principal process and methods available and indicates how and when different techniques should be used.

Cable Fault Location Course Content Overview

This course will cover all aspects of cable fault location from safety practice, and diagnosis to reporting. Topics include:


• Test equipment position
• Grounding
• Built-in safety systems, and application of safety tools related to the equipment.

System Voltage, Environmental, and Cable

• Cable type, construction elements, operating voltage, “U”, and “Uo”.
• Mapping and defining the cable route and cable length.
• Soil type and recent weather conditions

Fault Diagnosis

• Measuring fault resistance, Loop resistance, TDR cable length
• Voltage with-stand

Cable Fault Pre-Location methods:

• Understand the choices available and their application strengths
• TDR, the suite of SIM MIM methods.
• Introduction to Impulse Current Methods, Decay Method, and to Differential Methods

The Four Main Cable Fault Pin-pointing Methods

• Surge with magnetic-acoustic pin-pointer
• Step Voltage Method
• Twist Lay Method
• Minimum Distortion Method


• Basic requirements for reporting, understanding efficient reporting can save site time.
• Post-Fault tests and repair proving
• VLF test, Tan Delta, Partial Discharge

For more information or to book your place call 01642 987 978, or alternatively, you can book online by clicking the date that you would like to attend.

For group or on-site bookings call the training team on 01642 987 978.

£495.00 £594 Inc VAT

Have a question? 01642 987 978 or

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