No electric in my garage

[gimpchop]

Thanks yes the damage is to the rcd. The join is where the cable comes out of the house and is joined to armored cable that goes underground to the garage its inside a waterproof box and there is no damage to it heat or age related but it is conected with a standard conetion block. Not sure if it the right one for the job.

 

[Specialist]

Although the connection has lasted until now. It would be better to get the Electrician you use, to check that & the rest of the wiring as well. Just to be safe.

 

[gimpchop]

This is a pic of the join.

 

[gimpchop]

Im happy to get a electrician. But would still like to pin down the problem myself.
For peace of mind.

 

[telectrix]

replace that connection block with wagos.then look at the RCD thast's damaged. it will have a mA rating (trip current) and a A rating (max. current load) let us know these 2 values.

also, i can't see that the armour of the SWA ia earthed. that is bad.

 

[Specialist]

OK, that doesn't look like a particularly bad joint. Unfortunately the box has been leaking & letting in water, it either needs re sealing or preferably replacing. In all honesty I'd replace the connectors with Wago's at the same time.
Have to say the cable looks rather thin to be feeding all you have on it, ask the electrician to check that as well.

Agree with telectrix, the armour should have been earthed.

 

[gimpchop]

Hi thanks im not familiar with a wagos what type would i need pls. Dom100sw 100amp.

 

[gimpchop]

Rcd

 

[Specialist]

• Your Electrician would provide Wago's for you and Source the correct replacement switch.

 

[gimpchop]

Damage to rcd. Note the burn on the side and melted plastic in th bottom right screw hole.

 

[Specialist]

It's fairly common for terminal's to loosen & burn after a period of years, your electrician will sort it when the switch is replaced.

That's not an RCD by the way, it's a 100 amp main switch.

 

[Wilko]

Hi - post #43 - its hard to diagnose via the internet, but I think the cable is burnt (looking closely at the blue and red at the base) a sign of overload. In the house fuse board, what's the mcb rating that protects the black cable going to the garage?

 

[Dave OCD]

That is a switch that's overheated and failed not an RCD !

 

[gimpchop]

Its the one with garage above it in the off possition.

 

[Dave OCD]

That's an MCB at the supply end, hopefully that's fed via an RCD in your house Consumer Unit ? The rating would be fine for the cable feeding your garage but with the 3kW spa thing there wouldn't be much spare capacity at all. Also the main switch at the garage end board must have had a loose connection or an internal fault to overheat and fail like that.

 

[gimpchop]

Hope this helps.

 

[LankyWill]

That armoured is not even properly fastened to the board, get an electrician in to fix those few odd bits we picked up.

 

[Dave OCD]

Yes that's good, some will say not ideal as an earth fault in the garage will cause the loss of the other circuits supplied via that RCD, but the main thing is you have overcurrent and RCD protection for the garage.

 

[Octopus]

Why do I get the feeling we are not being told everything...

 

[Pete999]

Why do I get the feeling we are not being told everything...

Wondered that a while back, but thought nah can't be