Hipot, Insulation & High Voltage Test

Electrical safety compliance testing, earth resistance and grounding verification, and high-voltage test systems from MEWOI and LISUN, spanning production-line hipot and RCD testing through to insulation resistance, partial discharge, and transformer/apparatus verification. AC and DC hipot testing aren't interchangeable — DC testing suits high-capacitance equipment and cable work where AC's charging current would otherwise mask a real fault, while AC more closely reflects in-service stress on general apparatus. Earth resistance testing covers everything from handheld clamp-on testers for quick field checks through to three-terminal fall-of-potential methods for substation-scale verification. 87 products for production-line safety test, field verification, and transformer/apparatus compliance.