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Insulation resistance testing shows the condition of cable and wiring insulation and the risk of short circuits, leakage current and fire. We test as an accredited laboratory and issue a report.
When you need it
- Before energising a new line
- To assess old wiring and cables
- After repair and reconstruction
- When breakers trip often or leakage is suspected
- For facility handover and periodic inspections
Technical details
- Method
- GOST 3345-76
- Measured
- insulation resistance (MΩ)
- Objects
- cables, wiring, lines up to 1 kV
- Result
- official test report
- Accreditation
- AZS ISO/IEC 17025:2020, AZS ISO/IEC 17020:2021
Insulation resistance testing
Preparation
Circuits are identified and safely isolated.
Measurement
A megohmmeter measures resistance phase–phase, phase–neutral and phase–earth.
Evaluation
Results are compared with normative values.
Report
Results for each circuit go into a signed report.
FAQ
Why measure insulation resistance?
Damaged insulation causes short circuits, overheating and fires; testing finds this in advance.
How long does it take?
It depends on the size of the facility and number of circuits; we confirm after your request.
What document is issued?
A signed report of an accredited laboratory.
Do you test cables with high voltage?
Yes, we test cable insulation with high voltage (GOST 34834-2022).
Request a measurement
Tell us about your site: our engineer will agree scope and price.