No electric in my garage

[gimpchop]

Hi i had my garage converted in to a office about 5 years ago. Today i went out to my garage and there is no electric. I have checked the mcbs in the garage and they are all in the correc possitions and allso the main mcbs in the house and all are in the correct positions can any one point me in the right direction in to trouble shooting it pls.

 

[marc8]

sorry did not see the above, but I bet the reason it melted is due to a loose connection

 

[LankyWill]

What is the fault? The only information we have is that there is no power in the garage but no protective devices appear to be tripped.
It could be a simple five minute fix or a couple of hours finding the hidden joint which has failed.

Pedantic!

 

[gimpchop]

Thanks maybe I explained it wrong there is mcbs for sockets lights ect but nothing tripped.
The spa came with a 240v plug and is ment for household use. The spa allso has a circuit in line that didnt trip.

 

[davesparks]

Pedantic!

What's wrong with that?
You stated that it won't cost more than £40 to fix, we now know it is a damaged RCD, depending on the brand it could,cost more than that just for a new RCD. You'll be making a loss on this job!

 

[marc8]

Thanks maybe I explained it wrong there is mcbs for sockets lights ect but nothing tripped.
The spa came with a 240v plug and is ment for household use. The spa allso has a circuit in line that didnt trip.

Loose connection, normally main reason why something melts if it has not been overloaded

 

[davesparks]

Thanks maybe I explained it wrong there is mcbs for sockets lights ect but nothing tripped.
The spa came with a 240v plug and is ment for household use. The spa allso has a circuit in line that didnt trip.

Nothing will trip if the fault is just a loose connection. do you mean a 13A plug? In which case it certainly doesn't need 100A.

 

[gimpchop]

Thanks could it be somthing to do with the join.?

 

[gimpchop]

Yes 13a plug

 

[davesparks]

Thanks could it be somthing to do with the join.?

What join? I thought you said it was the RCD which appears to be heat damaged? This is most likely caused by a loose connection, overload or a failure within the RCD.

 

[Specialist]

Thanks could it be somthing to do with the join.?

It won't be the join, you said that was on the supply into the office.
Go with what Dave said above.
The problem has probably been there for a while, but the prolonged extra current from the spa finished it off.

 

[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.