Specialist Medium Voltage Testing

for MV Power Cables

Testing Medium Voltage cables is more than just quality assurance: it's about delivering installation longevity and resilience. As the critical link for infrastructure and equipment power even microscopic faults can cause:

Accelerated ageing
Reduced reliability
Reduced operational efficiency

The environmental impact and business disruption that accompanies having to replace these cables is significant.

Testing medium voltage cables means not only constructional tests, and environmental tests such as accelerated UV weathering as applied to all cables, but a range of tests specific to these higher voltage cables, including whole drum tests to confirm the full length of cable is fit-for-purpose.

We rigorously test Medium Voltage drums in our specialist facility, testing to IEC, ICEA, IEEE, EN and other national and international standards.

MV Cable Tests

Greater detail on the test methodology of our specialist MV cable tests is provided here:

VLF Testing for MV Cables

Cable Construction and Dimensional Testing

UV Accelerated Weathering Testing

Cable Ozone Resistance Testing

Cable Insulation Tensile Elongation Measurement

Over-sheath Continuity Testing for Cables

Conductor Resistance Testing

Sheath Resistance Testing

Cable Insulation Resistance Testing

RoHS Compliance Testing

Additional MV Testing Services

BSI Kitemark MV Cables

Third-party verification of quality for these critical link cables. Particularly valuable for large-scale projects where multi-phase installations rely on consistent quality.

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Network Rail MV Cables

Specific to Network Rail requirements, it includes Oversheath Continuity Testing for the graphite coated NR-PS-ELP-00008 trackside power 19/33kV and 25/44kV cables.

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Third-party Diagnostics

For site acceptance testing, where an issue is suspected, or for asset maintenance purposes. Includes Diagnostic PD testing and Off-line PD mapping.

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Technical Hotline

For support on any aspect of cable selection, specification or installation, you can contact our hotline by email or telephone for advice.

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Custom Cable Design

Bespoke and tailored solutions for when off-the-shelf options don't fulfill all the installation requirements.

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CPD Cable Training

Our experts share their knowledge with training on a range of cable subjects as part of your Continuous Professional Development programme. Tailored training course also available.

The courses