Electricity distribution board for one floor of flats - uses incoming terminal block and circuit breaker to supply bus=bars and disconnectable consumer circuit breakers

摘要

In the electricity distribution board, a set of bus-bars (JB) for one floor of the block of flats receives a supply from an incoming cable via a terminal board (BA) and circuit breaker (DA). Single or three-phase consumer circuit breakers (D1-D4) control individual consumer supplies on the floor. Each of the consumer circuit breakers (D1-D4) has sprung contacts which permit connection and disconnection to the set of bus-bars (JB) as may be required. ADVANTAGE - Disconnectable consumer circuit breakers reduce installation labour requirements and facilitate subsequent operation.