What is calibration traceability for high-voltage sources?
A Hipot tester’s display is only as trustworthy as the high‑voltage source and volt‑meter behind...
June 2026
What is ASTM D149 dielectric strength testing for solid insulation?
ASTM D149 dielectric strength testing defines how to measure breakdown voltage and dielectric strength of...
How should you calculate safe hipot test voltage with the 2V + 1000 rule?
A practical way to calculate hipot test voltage for new assets is to start from...
How can manufacturers archive withstand test results to prove compliance?
Archiving withstand (hipot) test records means creating a tamper‑proof, traceable trail from each tested unit...
How should you apply ASTM D149 dielectric strength and the 80% rule for safe transformer testing?
ASTM D149 defines how to measure dielectric strength of solid insulation by applying an increasing...
How can series resonant test systems safely test massive capacitive loads?
A series resonant test system lets you test long HV cables and GIS with a...
Is your transformer testing strategy ready for the 128‑week lead-time crisis?
Power transformer lead times in the U.S. have stretched to around 128 weeks, with GSU...
How does testing protective rubber goods ensure technician safety?
Testing protective rubber goods such as gloves, blankets, and hot sticks verifies that the insulation...
How can you safely discharge capacitive loads after high-voltage tests?
Safely discharging capacitive loads after high-voltage testing means converting stored energy into heat in a...
Is your transformer ratio testing ready for the 2026 IEC/IEEE accuracy mandates?
The 2026 IEC 60076-1 and IEEE C57.12.90 revisions enforce a ±0.5% maximum deviation on transformer...