Performance and testing of teleprotection equipment of power systems.. Specification for narrow-band command systems.
NORMA vydaná dňa 29.11.1991
Označenie normy: BS 7494-1:1991
Dátum vydania normy: 29.11.1991
Počet strán: 40
Približná hmotnosť: 120 g (0.26 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS
Applies to narrow-band single-signal and multisignal equipment for teleprotection. Also applies to voice frequency equipment which is used in connection with various telecommunication systems, such as power line carrier, radio link, rented circuits, leased or owned cables. Status: Confirmed