This is related to electrical engineering
2006-07-27 20:33:43 · 3 answers · asked by Anonymous in Education & Reference ➔ Higher Education (University +)
An ELCB detects current in the earthing system, and an RCD detects a difference in current between the "feed" and "return". In other words an ELCB is looking for the presence of a leaking current (in the earthing system) whereas an RCD is looking for the absence of a leaking current from the main circuit. The advantage of an RCD is that it can detect leaks which do not pass through the earthing system of the circuit (which pass directly to earth, for example).
2006-07-27 20:41:58 · answer #1 · answered by Graham I 6 · 6⤊ 1⤋
the only thing thats commen in them both is the letter c
2006-07-28 03:41:50 · answer #2 · answered by micky k 3 · 0⤊ 0⤋
none whatsoever, they are just different names for the same thing.
2006-07-28 03:39:32 · answer #3 · answered by Anonymous · 0⤊ 0⤋