Design and operating conditions to ensure that remote-control units distant from gate-end boxes can be used with any gate-end box whose circuit complies with the specification. Essential components with reference to basic circuit; limits of voltage, current, resistance, temperature in relation to circuit as a whole. Apparatus to operate on plane within 15° of horizontal.
BS 3101:1959
Original price was: $264.16.$132.00Current price is: $132.00.
Specification. Intrinsically-safe remote-control circuits associated with restrained plugs and sockets for use in coal mines
BSI Group , 02/07/1966
