NEMA SB 3-1969
Interconnection Circuitry of Noncoded Remote-Station Protective Signalling Systems

Standard No.

NEMA SB 3-1969

Release Date

1969

Published By

National Electrical Manufacturers Association（NEMA)

Status

Withdraw

Latest

NEMA SB 3-1969

NEMA SB 3-1969 history

• 1969 NEMA SB 3-1969 Interconnection Circuitry of Noncoded Remote-Station Protective Signalling Systems