Insulation Resistance - Meggering Check

Compare meggered insulation resistance against IEC 60092-507 minimum - 1 MΩ for < 500 V systems, higher for HV.

Insulation resistanceMeggerIEC 60092

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

IR_{min} = \max\left(1,\ \frac{V_n}{500}\right)

Symbol	Meaning	Unit
$V_n$	Nominal voltage	V
$IR$	Insulation resistance	MΩ

Source: IEC 60092-507 / IEEE 43

Compare meggered insulation resistance against IEC 60092-507 minimum - 1 M\u03a9 for < 500 V systems, higher for HV.