Rules for the protection of telecommunication and signalling lines and devices against dangerous and disturbing influences of the 25 kV, 50 c/s electric traction
NORM herausgegeben am 1.12.1977
Designation standards: STN 342040:1968/a
Classification mark: 342040
Catalog number: 57880
Note: Änderung
Publication date standards: 1.12.1977
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Slovak technical standard