Join Date: Sep 2012
Location: Dania Beach
Thanked 13 Times in 13 Posts
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Re: Is ELCI needed if AC only runs to GFCI outlets?
This is the setup I was trying to describe.
[a: 30A Shore Power] ------------\
[b: 30A Double Pole Breaker]
[c: 15A Breaker] [f: 10A Breaker]
| [g: GFCI outlet on panel]
[d: GFCI outlet in locker]
[e: Battery Charger]
Would adding an ELCI breaker between (a) and (b) -- or replacing (b) with an ELCI breaker -- actually make things safer in this configuration?
As I see it, the places where a ground fault are likely to occur are in (e) and things plugged into (g). Each of which come right after a 5ma RCD.
What would a 30ma RCD between (a) and (b) be protecting me from?
I could see the value in a more complex system containing enough branches to cumulatively exceed 30ma residual current without tripping any individual 5ma GCFI outlet or with any non-GCFI branches.
This is a legitimate question, I'm not trying to be difficult.
1975 Tartan 30 Competition Rig
Last edited by eko_eko; 09-11-2012 at 09:05 AM.