RING MAIN UNIT * NON-EXTENSIBLE * INDOOR * CONSISTING OF : 2 x RING-SWITCHES, 1 x TEE-OFF CIRCUIT BREAKER, PROTECTION RELAY + CT’S * NOMINAL VOLTAGE : 11kV * RATED NORMAL CURRENT (RING-SWITCH) : 630A * RATED NORMAL CURRENT (TEE-OFF CIRCUIT BREAKER) : 200A * RATED SHORT-TIME CURRENT : 20kA (3 SEC) * ALL BUSHINGS TO BE 630A TYPE C TO EN50181 WITH M16 x 2 THREAD * SUPPLIED WITH : EARTH FAULT INDICATOR FITTED IN LEFT CABLE TERMINATION ENCLOSURE, AIR-FILLED CABLE TERMINATION ENCLOSURES WITH CABLE SUPPORT, RAISING BASE (MOUNTING PEDESTAL) WITH 3 x CABLE SUPPORT CLAMPS (SEE D-DT-8019) AND REMOVABLE FRONT SECTION, IAC AFLR 20kA 0.5s * RAISING BASE GLAND PLATE TO BE FITTED WITH 3 x RUBBER GROMMETS (SEE D-DT-8027) * COASTAL APPLICATION * ESKOM DRAWING No. D-DT-8060 *
RMU 11kV 630A200A 2R1B N/E CST I/D
