STN EN 61643-21:2002/A1 (341392)

Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods

STANDARD published on 1.1.2010

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The information about the standard:

Designation standards: STN EN 61643-21:2002/A1
Classification mark: 341392
Catalog number: 109920
Note: Change
Publication date standards: 1.1.2010
The number of pages: 44
Approximate weight : 132 g (0.29 lbs)
Country: Slovak technical standard
Category: Technical standards STN