
Railways applications. Direct current signalling relays.
STANDARD published on 31.7.2013
Designation standards: BS EN 50578:2013
Publication date standards: 31.7.2013
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 580 75609 2 Status: Confirmed