Lighting Circuit Fault

[Stuart Lane]

New Member and wannabe electrician. I'm teaching myself for now for obvious reasons.

My problem is an extension light circuit and the conundrum is:

The circuit will only work / operate from the main circuit breaker. As soon as I wire a switch into the circuit it will not stay on and immediately trips. I'm guessing the solution is obvious to an expert but not to me.

Thanks.

 

[Leesparkykent]

It's wired/connected wrong.

 

[Octopus]

It's wired wrong or the switch drop is damaged.

Is this a new circuit?

What tests have you done?

 

[The Ghost]

Sounds like you got a tiger by the tail. So you had a go at extending your lighting circuit. Presumably it was all working before you started? If so, then something you have done had cause a short of the cables somewhere. If you have an MFT you need to use it. Otherwise I am afraid you will need an electrician in to get you out of the problem. Maybe try post some photos of what you have done especially the connections.

 

[MJPD29]

Is the switch creating a dead short when operated instead of switching the live? Is there and damage to switch cable?

 

[Bidges]

If you have an MFT you need to use it.

Thisˆˆˆˆ

Buy one, learn how to use it, then find out how not to short the supply via the switch.