Search results

Hey, Physicists, there is one thing though, when the dimmer is initially turned on low, obviously the dimmer circuit is keeping the voltage low (by the thyristor only turning on in the early part of the cycle), and so i would assume the current is still pretty low despite the bulb being cold...

Thanks Mike. This is a really interesting point about the dimmers and lamp temps as I do have a set of 5 x 40W bulbs on a dimmer on that circuit, and also another 100w on a dimmer. This could well be a contributary factor. However, the aspect which is a pain is that it wont reset easily...

Jaymack, i know its a bit off the original topic now, but why do you say it isnt safe? I dont have copies of the hse docs. The meter I have is CATIII rated, double insulated, 600v. It is marketed at electrical testing. I've used it for testing the lighting circuits (other occasions) and found...

Damocles - thanks also for your advice, I'll definitely try this next time it goes. I estimate i've got 650W of lights on the circuit, and i'm not aware that anything other than these are connected. The only other thing i'm thinking is there are some 'old' lights in our kitchen which dont...

Spark123 - thanks for the advice. Can I clarify, you mean turn off the main switch, then try to reset the tripped breaker. In this case it would have no excuse to fail to reset, so must be dodgy. Sounds like a very good plan! Is it usual that they would take time to reset even when isolated...

I have quite a lot of lamps on it - but these still only total about 650W in my estimation, and i presume it should handle 1200W on the circuit. We do have problems if most of them are turned on, for sure. There is one 30ma RCD in the CU and this does not trip when the circuit goes. I'm sure...

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...