IEC 61557-4:2019 PRV
Pre release version
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 4: Resistance of earth connection and equipotential bonding
IEC 61557-4:2019 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. IEC 61557-4:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) complement to the measurement category in Clause 4;
b) correction of the equation for operating uncertainty;
c) complement to the requirements for measuring with DC;
d) alignment of the structure with that of the whole IEC 61557 series.
|Publication type||International Standard|
|TC/SC||TC 85 - Measuring equipment for electrical and electromagnetic quantitiesrss|
|ICS||17.220.20 - Measurement of electrical and magnetic quantities
29.080.01 - Electrical insulation in general
29.240.01 - Power transmission and distribution networks in general
|File size||1064 KB|
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