Đo điện trở cách điện-Insulation Resistance Testing / Megger Testing / PAT testing-Phần 1

A tutorial on insulation testing. we cover the different test methods, an analogy on how insulation testing works, safety and the use of insulation test equipment.

In this video:

* What is insulation testing / what is megger testing / what is PAT (Portable Appliance Testing) testing?
* Electrical safety when working in a DB board / breaker box or around high energy circuits.
* Insulation test types: Proof test, Spot test, Time Resistance testing, Step Level Voltage test, Polarization Index (PI) test, Dielectric Absorption
Ratio (DAR) test.
* Leakage currents: conductive leakage current, capacitive charging leakage current and polarization absorption leakage current in a dielectric.

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