Electrical safety in low voltage distribution systems up to 1000V a.c and 1500V d.c—Equipment for testingmeasuring or monitoring of protective measures—Part 4Resistance of earth connection and equipotential bonding
NORMA vydaná dňa 21.5.2021
Designation standards: GB/T 18216.4-2021
Publication date standards: 21.5.2021
Country: Chinese technical standard
Kategória: Technické normy GB