Electrical distribution board safety isolator

摘要

An electrical distribution board comprises an incoming conductor terminal connected to a longitudinal bus conductor 14 that is connected to a lateral conductor tab 15 for distributing electrical power. An isolation mechanism 16 electrically isolates an outgoing conductor terminal 12 from the lateral tab 15 and engages with a housing 18 of the electrical distribution board so that its movement to a position where the outgoing conductor terminal is connected to the lateral tab is only possible once it has been disengaged from the housing of the electrical distribution board. The isolator may also engage the housing so that movement to the isolated position is only possible once the mechanism has been disengaged from the housing. The isolator may include a body (fig 8, 26) housing a moving conductor (fig 8, 30) to connect the tab 15 and the outgoing terminal 12. The isolator body can have an engagement portion 34 that disengages a complementary portion of the housing 18 when a resilient part (fig 8, 28) is deformed. Part of the isolator 16 can cover a terminal of a circuit breaker 24 attached to a mounting rail when it connects the tab to the outgoing terminal. The isolator reduces a risk of accidental electrocution.