
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Phase sequence.
STANDARD published on 15.10.2023
Designation standards: BS EN 61557-7:2022+A1:2023
Publication date standards: 15.10.2023
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 17471 7 Status: Definitive