Hi.
I have a 5A MCB on a lighting circuit which quite frequently trips. This is often but not always due the bulbs blowing, but my problem is it is very difficult to encourage it to go on again, even after switching off all of the lights on the circuit.
For instance the most recent time i turned off the lights, but the breaker would only reset after a good 10 mins, otherise there is no mechanical resistance when you flip the switch.
I cant see the point of it waiting so long to reset, do you think it is a fault?
(btw, I have NOT been turning off the main switch while doing this - is this relevant?)
The wiring in our house is of variable quality so it could well be some problem somewhere, but there is never any sign of anything sinister.
My next question is how to safely replace it if so. I have successfully done some household wiring tasks, but i feel much more at home with things which can be isolated by unplugging them!! I dont like the idea the meter tails cannot be isolated. Surely it is not safe to fiddle with the customer unit without getting the meter turned off at source?? Thanks
I have a 5A MCB on a lighting circuit which quite frequently trips. This is often but not always due the bulbs blowing, but my problem is it is very difficult to encourage it to go on again, even after switching off all of the lights on the circuit.
For instance the most recent time i turned off the lights, but the breaker would only reset after a good 10 mins, otherise there is no mechanical resistance when you flip the switch.
I cant see the point of it waiting so long to reset, do you think it is a fault?
(btw, I have NOT been turning off the main switch while doing this - is this relevant?)
The wiring in our house is of variable quality so it could well be some problem somewhere, but there is never any sign of anything sinister.
My next question is how to safely replace it if so. I have successfully done some household wiring tasks, but i feel much more at home with things which can be isolated by unplugging them!! I dont like the idea the meter tails cannot be isolated. Surely it is not safe to fiddle with the customer unit without getting the meter turned off at source?? Thanks