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About This Item
Full Description
This part of IEC 61557 specifies the requirements applicable to equipment for measuring the resistance of earth conductors, protective earth conductors and conductors for equipotential bonding, including their connections and terminals, with an indication of the measured value or an indication of the limits.
All current amendments available at time of purchase are included with the purchase of this document.
Document History
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BS EN IEC 61557-4:2021
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Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures-Resistance of earth connection and equipotential bonding- Most Recent
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BS EN 61557-4:2007
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-Resistance of earth connection and equipotential bonding- Historical Version
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BS EN 61557-4:1997
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures-Resistance of earth connection and equipotential bonding- Historical Version