MV Power Cable Testing Training

Power Cable Standards, Testing and Maintenance - The Electricity Forum

This 2-Day MV Power Cable Testing Training course will cover the components that make up a medium voltage cable as well as the various methods for testing medium voltage power cable.

Since power cables are used extensively by most electric utilities and industrial, commercial and institutional power users, many people are interested in learning more about how cable systems are designed, and to what standards and how to properly size and specify power cable and then how to test and maintain aging power cable systems.

The Electricity Forum is offering a forum that will cover all of the critical aspects of power cables.

This course will cover the components that make up a medium voltage cable as well as the characteristics of each component in the cable. Several types of cable insulations are reviewed along with the benefits of each type. We will update delegates on the latest design innovations in power cable technology and the evolving standards surrounding the manufacture of power cable. Cable fault location and routine testing will be covered. You will learn about some of the latest methods in condition assessment testing, and cable rejuvenation and cable life extension.

Power cables come in all sorts of types, sizes and material construction components, depending on the cable application. Actually, there are various kinds of joint and termination ends and especially these accessories play a major influence on cable network reliability.

This course provides insight into how to accurately determine the remaining lifespan of your cable through Life Cycle Analysis techniques, with a minimal amount of time and resources. Special attention will be paid to the effectiveness of diagnostic procedures.


After Attending, You Will Learn:

  • Design Parameters and Construction Materials
  • Types of Cable and Cable Insulation Materials
  • Asset Management, Aging, and Remaining Life Cycle Analysis
  • Cable Testing and Failure Analysis


WHO should attend

  • Electric Utility Engineering and Maintenance Personnel
  • Industrial, Commercial, Institutional Electrical Engineering and Maintenance Personnel
  • Electrical Consulting Engineers
  • Electrical Design Engineers


Students receive

  • FREE 100-Page Digital Wire And Cable Handbook (Value $20)
  • $100 Coupon Toward Any Future Electricity Forum Event (Restrictions Apply)
  • 1.4 Continuing Education Unit (CEU) Credits
  • FREE Magazine Subscription (Value $25.00)
  • Course Materials In Paper Format





This presentation will discuss the major trends in modern power cable design and manufacture, with an emphasis on Canadian standards and manufacturing techniques to increase the life and effectiveness of medium voltage power cable.

The following issues will be discussed:

  • Possible Causes of Premature Cable Failure
  • Major Quality Improvements
  • Canadian Cable Standards and Specifications
  • Material Selection
  • Insulation Compounds Specified
  • EPR Suggestions for Long Life Cable
  • Metallic Shielding
  • Moisture Barriers
  • Increased Use of Cable Jackets
  • Most Widely Specified 15-35 kV Cable Constructions

Power Cable Design and Construction - Low voltage up to 2000 V

  • Extruded Polymer
  • Voltage rating
  • Conductor- solid, stranding, conductivity, temperature, AL, and Cu
  • Insulation- Thermoplastic, Thermoset, common used insulation, PVC, XLPE, EPR, temperature, physical,
  • Chemical characteristics
  • Metallic Shield
  • Binder Tape
  • Inner jacket,
  • Armour
  • Outer jacket
  • Color coding

Cable Sizing and Specifying

  • Cable sizing techniques using the Canadian Electrical Code
  • Derating factors for various temperatures
  • Underground installations for industrial, commercial, and mining applications

Power Cable Applications for Different Installations

  • Utility
  • Industrial
  • Commercial
  • Institutional

Cable Installations

  • Indoor
  • outdoor,
  • Cable pulling in conduit
  • Cables in trays

Multiconductor cable for Control and Instrument applications

Wire and Cable Size

  • What is the AWG definition
  • What is the mm² definition




Understanding Power Cable Deterioration

  • Electrical Treeing
  • Water Treeing
  • Thermal Problems

Review of Latest Testing Methods

  • DC Hi-Pot Testing
  • AC Hi-Pot Testing
  • VLF Testing
  • Tangent Delta (TD)
  • Partial Discharge Testing

Very Low Frequency (VLF) AC Technology

  • Power cable testing history
  • New cable designs developed
  • Problems found with DC testing
  • Something new needed – VLF developed
  • What is VLF – How is it designed - Why VLF
  • Applications, advantages, huge industry impact
  • Test standards - Worldwide acceptance
  • Designs and models available

VLF Withstand/Proof Testing

  • Defining the test: withstand vs. diagnostic
  • Why – When – Where
  • Model Selection
  • Applications: when, where, results expectations, follow-up
  • Performing the test: using the testing standards, connections, procedures

Diagnostic Cable Testing Using VLF

  • Diagnostic vs. withstand testing
  • Advantages and disadvantages of diagnostic testing
  • Purpose of diagnostic testing – cable quality data revealed
  • Two Methods used: Tangent Delta and Partial Discharge

VLF Tan Delta Cable Diagnostic testing

  • Explanation of test technology – physics
  • How to perform test: VLF needed and TD instrument
  • Interpreting results, planning future action
  • Limitations of test - physical and interpretive

VLF Partial Discharge Diagnostic Testing

  • Explanation of test technology – physics
  • How to perform test: VLF needed and PD detection instr.
  • Interpreting results, planning future action
  • Limitations of test - physical and interpretive
  • TD and/or PD Testing. Which, when, why, where, etc?


  • Summary of Withstand, TD, and PD testing.
  • Differences in results revealed, ease of use, availability, cost, etc and when to use which technology. PowerPoint of all VLF, TD, PD models


Review of expectations
Questions and Answers



Both days:

Start: 8:00 a.m.
Coffee Break: 10:00 a.m.
Lunch: 12:00 noon
Restart: 1:15 p.m.
Finish: 4:30 p.m.





We can present this MV Power Cable Testing Training Course to your electrical engineering and maintenance staff, through our Live Online Training Platform, tailored to your specific equipment and requirements. We are ready to help design this program for you. Click on the link below to request a FREE quotation.

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