Elektrická relé - Zkoušky a měření - Část 21: Tepelná odolnost (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.3.2026
Designation standards: ČSN EN IEC 63522-21
Classification mark: 353413
Catalog number: 522945
Publication date standards: 1.3.2026
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Kategória: Technické normy ČSN
This part of IEC 63522 is used for testing along with the appropriate severities and conditions for measurements and tests designed to assess the ability of DUTs to perform under expected conditions of transportation, storage and all aspects of operational use.
This document defines a standard test method for evaluation of resistance against high temperature for long periods