Performance and testing of teleprotection equipment of power systems.. Specification for narrow-band command systems.
NORMA vydána dne 29.11.1991
Označení normy: BS 7494-1:1991
Datum vydání normy: 29.11.1991
Počet stran: 40
Přibližná hmotnost: 120 g (0.26 liber)
Země: Britská technická norma
Kategorie: 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