Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures - Insulation resistance algolia-search-ignore This International Standard specifies a

This International Standard specifies a method for the determination

For clarity of use

hazardous situations or events during commissioning

access routes to and around all buildings

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Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures - Insulation resistance algolia-search-ignore This International Standard specifies a1 Scope This part of IEC 61557 specifies the requirements applicable to equipment for measuring the insulation resistance of equipment and installations in the de energized state.