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Brand new and green
Former Community Member
Hi, I'm training to become fully qualified so know very little at the moment (just a domestic installer right now). I looked at my electrics and can see two lighting circuits not on either of my RCD's. I know this is not safe and wonder why, if I have two RCD's, are the lighting circuits not on them and also can I just add them to the busbar on each of the RCD's?
Well before you panic, it is not to current standard - however, to say 'it is not safe' is a bit sweeping.
To make it actually dangerous still requires either a gross user error or another fault to be present, so there are exposed live parts in reach or something like that.
A few years ago that would have been a perfectly acceptable situation, and as early RCDs had a tendency to pop off at odd moments, (and still do if you put too many circuits on one RCD) it may have been felt safer to leave the lights off the RCD. (same for fire alarms).
By all means re-jig it if there is room to do so, and you feel confident in your ability
Well before you panic, it is not to current standard - however, to say 'it is not safe' is a bit sweeping.
To make it actually dangerous still requires either a gross user error or another fault to be present, so there are exposed live parts in reach or something like that.
A few years ago that would have been a perfectly acceptable situation, and as early RCDs had a tendency to pop off at odd moments, (and still do if you put too many circuits on one RCD) it may have been felt safer to leave the lights off the RCD. (same for fire alarms).
By all means re-jig it if there is room to do so, and you feel confident in your ability
