JS EN 61557-3:2009
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 3: Loop impedance
This part of JS 61557 specifies the requirements applicable to equipment for measuring the loop impedance between a phase conductor and the protective conductor or between a phase conductor and neutral or between two phase conductors by using the voltage drop when the circuit under test is loaded.
General information
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Status
Published Document (JS)
Publication date
01/02/2010
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Effiective date
01/08/2010
Number of pages
14
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