Electrical Problem - Light RCB tripped

Adrian_J

Good morning all...

Last night, went to turn the light on in the bath room.

No light

Checked the fuse box and the RCD had tripped on the new RCB box we had installed 4 years 2 months ag or so and the circuit had tripped even though no lights were switched on at the time.

Switching the trip back on was not problematic, ie it went to the on position with out immediately tripping...

But no lights were work on that ring.


Removed all light bulbs and replaced a coupke with new ones but still no light.

So I guess the problem is more fundamental, any suggestions?

Adrian

rrf494g

may be rodent chewing - need to trace the circuit along its path I'm afraid. Good Luck.

macman

RCD itself may have failed?
PS: lighting circuits are not on a ring main (that is only used for power sockets), so if there is a fault further back down the circuit, you lose all the lights.

Adrian_J

macman wrote: »

RCD itself may have failed?
PS: lighting circuits are not on a ring main (that is only used for power sockets), so if there is a fault further back down the circuit, you lose all the lights.

So are you meaning that if the first room light has a fault, all the others will fail, or if one light fails, do they al stop working?

The circuit itself has four lights, bathroom, toilet, spare bedroom and main bedroom.

We are in a second floor mid 60's council flat (ex) so rodents are less likely to be an issue but not plausible...

There is one more floor above us...Recently there was a water problem coming from upstairs (6-8 weeks ago?) but that did not casue any problems then.

Guess I need to call a sparkie

Again thanks for your help

Adrian

keystone

Adrian_J wrote: »

...Recently there was a water problem coming from upstairs (6-8 weeks ago?) but that did not casue any problems then.

Big clue there.

Guess I need to call a sparkie

Yep. Because the problem has to be properly traced and you've mentioned the leak.

Best of luck.

Cheers

System

macman wrote: »

PS: lighting circuits are not on a ring main (that is only used for power sockets)

Lighting circuits should be ring circuits. Most houses have separate rings for each floor, or, in some cases front & back.

The ring is normally formed through the ceiling roses.

macman

Lighting circuits are radial circuits, not ring circuits!
They can be loop-in or junction box wired.

muckybutt

!!!!!! wrote: »

Lighting circuits should be ring circuits. Most houses have separate rings for each floor, or, in some cases front & back.

The ring is normally formed through the ceiling roses.

What a complete load of tosh !

Lighting circuits have NEVER been wired as ring circuits, they are always radial. How long have you been a sparks ? me ive been a sparks 20 years and have never seen let alone wired lights on a ring.

If you dont know what you are on about with electrics then please dont post.