Stairwell lighting went off, needing advice
- Thread starter garnet
- Start date
Not very reliable, but...
With the power on and that Royce Thompson unit, set to TEST - Can you check if the live input, and output, are live?
Now check the neutral with your tester, to see if they show as live.
Report back, with the results..
DO NOT DO THAT EVER.
It was fortunate that this time nothing happened.
Had power been available, that bridge wire could have taken out the main supply fuse or caused a fire.
It's way past the time to get a professional to investigate and repair.
Appreciate your concern here.
I will probably call a sparky, but I really can not see what the issue is here and that drives me nuts.
I will test the circuit from MEM switch to each lightfitting and between the lights with multy meter and with the main fuse removed.
If there is not connectivity this might indicate cable melted somewhere in the wall.
That thing does not show current!With one of these
If you do not understand the difference between current and voltage then you should walk away to the nearest telephone and get a competent electrician.
How can both fuses be blown, one 16A should have been blown and that is it. How the 20A got blown? And if they can both be blown, can anything else on the circuit be fried also? The cable itself?
The problem started after a very weird event. It was very cold here for a week - 0C. The stairwell is external so all the walls were at 0C. All of a sudden temperature went to 13C in a day, and it was very humid. I saw so much water condensed on the walls and ceiling that it was dripping on the floor. So my theory is that it might have gone to the light fixture connection terminals. Not sure what's going on.
A fuse doesn't limit the current, all it does is destroy itself when sufficiently overloaded.
A sudden total short circuit may have been in the order of hundreds or even thousands of amps and both fuses are likely to blow.
I think this incident is unlikely to simply be water ingress.
How can both fuses be blown, one 16A should have been blown and that is it. How the 20A got blown? And if they can both be blown, can anything else on the circuit be fried also? The cable itself?
The problem started after a very weird event. It was very cold here for a week - 0C. The stairwell is external so all the walls were at 0C. All of a sudden temperature went to 13C in a day, and it was very humid. I saw so much water condensed on the walls and ceiling that it was dripping on the floor. So my theory is that it might have gone to the light fixture connection terminals. Not sure what's going on.
A fuse doesn't limit the current, all it does is destroy itself when sufficiently overloaded.
A sudden total short circuit may have been in the order of hundreds or even thousands of amps and both fuses are likely to blow.
I think this incident is unlikely to simply be water ingress.
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