Wire and Cable
Utility Proactively Tests Underground Cable
How Modern Conductors are Improving Grid Reliability and Much More
Wire and Cable
Insulation Resistance Test
Insulation Resistance (IR) test, often called Megger test, is more than 100 years old and assumed to be a very straightforward test. During my inspection and testing work in the past 15 years in Canada, US, and internationally, I have seen different practices of performing and interpretation of IR test.
The application of IR test includes:
- At the point of installation, pre-commissioning to ensure minimum specifications are met
- Verify proper installation after a repair
- Troubleshooting
- ...
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