BS EN 62689-1:2016

This standard BS EN 62689-1:2016 Current and voltage sensors or detectors, to be used for fault passage indication purposes is classified in these ICS categories:

• 17.220.20 Measurement of electrical and magnetic quantities

IEC 62689-1:2016 defines the minimum requirements (therefore performances) and consequent classification and tests (with the exception of functional and communication ones) for fault passage indicators (FPIs) and distribution substation units (DSUs) (including their current and/or voltage sensors), which are, respectively, a device or a device/combination of devices and/or functions able to detect faults and provide indications about their localization.