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can you give main difference between ELCB And RCCB?
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Answer Posted / anc
1)
An RCCB will disconnect if there is sufficient fault
current flowing from any part of the protected circuit to
any other path. An ELCB will only disconnect if there is
sufficient fault current flowing from a live part of the
circuit to the protective earth conductor.
2)
ELCBs are old hat.
3)
RCCBs are cool for compliancy purposes ELCBs are not.
4)
RCCBs are pretty good at protecting people against electric
shock. ELCBs are pretty crap.
5)
An RCCB disconnects a circuit when there is a difference
between the current in the phase side of a circuit and the
return side of that circuit and when this difference is
filtered and exceeds a threshold trip current value(In this
context ‘return’ for most purposes is the neutral conductor
but for some installations could also conceivably be
another phase connection).ELCBs work by detecting current
(or valtage induced by current) in the protective earth
conductor.
6)
It is difficult to see why anyone would choose to use an
ELCB over an RCCB given that an ELCB will only prevent the
protective earth conductor from reaching a dangerous
voltage under fault conditions. RCCBs will also do this and
more.
| Is This Answer Correct ? | 52 Yes | 5 No |
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