outside light tripping rcbo

[9regnac]

Megger lighting circuit. L-e short found cable its the switch wire for outside light.

Opened fitting no water present.

Disconnected fitting it clears. The cable is not shorting to the plate or any kind of pressure fault

If i disconnect light it clears.

Its a bulkhead fitting with 2 8w florescent lamps.

With power on and switch off circuit is fine. Turn switch on it trips.

Help please

 

[Gazmm]

swap the light.....

 

[9regnac]

Thats what i thought. Nice and easy light

 

[9regnac]

Faulty light should i say

 

[Plonker 3]

If you cant understand test results then I suggest getting a electrician in.

 

[1shortcircuit]

L-E Fault?

What type of cable is going to the unit and is it exposed to the elements in any way?

Are there any signs that could indicate that the cable is damaged within the concealed part of the sheath that only creates the fault when bent into the connector block? (disconnection takes away strain imitating a fault free cable?

Where are you running the test from?

I find it hard to believe that just a standard bulkhead unit could be the cause of this issue when the cable connections are so basic?

Is this a fault you have been called to rectify or a unit you have installed that is causing issues?

I presume the cpc is connected in the correct place at the unit? :thumbsup

:thumbsup

 

[9regnac]

Running ir test from cu. a fault to rectify getting lights back on a they didnt know what was causing it. I will further investigate when its not so heavy rain ive disconnect it just now

 

[9regnac]

Just a 1.0mm twin

 

[9regnac]

Ir test from board l e fault. Found lighting joint. Meggered all me lives to earth found the one which was the o s light

 

[Octopus]

At the bottom of each post is the "edit button" could save you posting too many posts plus the "like" and the "thanks"

 

[telectrix]

should be able to make light work of this.

 

[dim_bulb]

Tel I don't get it? I'm in the dark with this one.

 

[telectrix]

so's his client.

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so's his client.