Snímače nebo detektory proudu a napětí užívané pro účely indikace průchodu poruchy - Část 1: Obecné principy a požadavky (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.5.2017
Designation standards: ČSN EN 62689-1
Classification mark: 351351
Catalog number: 502065
Publication date standards: 1.5.2017
The number of pages: 96
Approximate weight : 319 g (0.70 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
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