mk double switch to socket
- Thread starter G1zm0
- Start date
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Depends on the cable.
Anything could be fitted with a 5A plug by someone removing the 13A one supplied with it and putting a 5A one in its place.
Did you actually have a rational point to make?
You could put a bayonet plug on your hair dryer and plug it into the light socket. Like they did in the good old days.
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No, exactly my point! I would "expect" the landing light and thus the downstairs switch to be on the upstairs circuit. I would also "expect" any other switch on the same plate to be on the downstairs circuit. This may not be the case in either situation, and unless I knew for certain I would isolate both circuits and check for dead.
The point is with having a switch effectively fed from the socket ring is that it is not "expected". A professional spark or someone with common sense would look for the feed if a switch is still live, but such a feed is not necessarily the most obvious. Somebody else may just make the (potentially dangerous) assumption that all is dead if the lighting circuits are off.
This was a comment giving my twopenn'th. It may be OK to do this but would I do it? Unlikely. But that is me. It may not be as elegant, or what the OP wants to do himself , but in this case I would just use a switched FCU to supply the lights. Again, my choice. It is what I had done in my kitchen as I did not want the extra mess of chasing for a switch drop or trying to get a cable from the light fitting
Fair enough. On this forum one never knows the competence of the poster. The same could be said of some of the responders!
THEN THAT WOULD BE THEIR FAULT.
When you're crossing the road, and the little green man has come on, do you just step out, assuming that the car approaching is going to stop, or do you wait a bit until you know he's going to?
When you buy a reduced item in the supermarket, do you assume that the person on the till will have got it right, or that the barcode will have been right, or do you check your receipt?
When you get given change, do you assume that it must be OK, or do you check it?
Every time you say things like 'someone might not check', or 'people might not expect' etc, you reinforce the point that people are supposed to check, and are not supposed to assume.
People with no common sense should not work on electrical installations, and it is not the job of a designer to eschew the right design in case in the future some uninformed idiot does what he is not supposed to do.
It all depends on the level of risk. Stepping out in front of a car carries higher risk to life than checking change in the supermarket. The change might be very important to you, but is not a threat to life and limb. If it is important to you, you will check it - electric is off, road is clear, change, whatever
I wonder how many "informed" have had a shock from something unexpected? There have been posts here that someone has had a shock as an automated switch has operated feeding a notionally dead circuit. Should not the designer account for this. The circuit may have been modified and to the best of your knowledge is safe to work on when you start.
Precisely.
That is completely different, and it's worrying to think that you might be having anything to do with designing stuff if you can't see that.
That is either a case of the designer failing to provide a guaranteed way to isolate the circuit, or the electrician failing to use it.
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