Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection (Endorsed by Asociación Espanola de Normalización in May of 2019.)
STANDARD published on 1.5.2019
Designation standards: UNE-EN IEC 60255-181:2019
Publication date standards: 1.5.2019
The number of pages: 99
Approximate weight : 328 g (0.72 lbs)
Country: Spanish technical standard
Category: Technical standards UNE