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IEC 61557-5 Electrical Safety Standards by Eduardo Farias is a document available to read on EtoBox.
What is IEC 61557-5 Electrical Safety Standards about?
This document outlines standards for equipment that measures earth resistance using AC voltage. It specifies requirements including that the output voltage must be AC without DC, and lists factors that influence measurement accuracy such as temperature, interference voltage, and probe/electrode resistance. The maximum operating uncertainty is specified as ±30% within the measurement range. Tests are defined to characterize the equipment under various conditions.
- Author
- Eduardo Farias
- Language
- EN