Garage Supply Advice

[mike350]

Hi

Im hoping you can help.

We live in a newish house (13months old). With a single detached garage, to which there is a feed (through armoured cable) to a couple of lights and sockets direct (no consumer unit in the garage).

Obviously the house is has a modern unit in it with an RCD etc.

My question:
Should the garage be wired to its own fuse within the consumer unit?

At the moment its on the same fuse as the rest of the house sockets.

We also have a second fuse and this seems oddly for an outside plug - which when we had an extractor replaced under warranty, were inform they obviously made a mistake as this was wired to be the feed to the neighbours garage.

My thinking is they wired correctly a feed to the garage off its own fuse from the main consumer unit protected by the house RCD.
Then realised they wired it to the wrong garage (wrong side of the house). So put a feed off the lounge/main house sockets fuse to power the garage.

Covering up the mistake by then putting the waterproof outdoor socket on the wall.

As the house is still under warranty and I use the garage for proper car stuff (compressors welders etc) i want to get this right.

Help...

(sorry for a long first question!)

 

[mike350]

Sorry Ive been away on a course.

No there is no fuse (other than the main fuse in the consumer unit) for the sockets in the garage.

The only fuse in the garage is one for the lights - pull that std 13amp fuse the lights go out, but the sockets remain live - so no no fuse protection (which is my worry)

The wiring is as follows:
The cable is connected through the wall to a double socket in the lounge. (using std Twin & Earth)
Armoured cable is connected through a chockblock to that cable in an IP56 box on the outside of the house.
The armoured cable runs to the garage underground - entering the garage through the wall
The cable runs straight to the double socket.
From the double socket it connects to a fuse and then to a double light switch, from the light switch is 1 connection to the security lights and one to the garage internal light.

 

[keith915]

Sounds like an ok install to me as long as there is just the one double socket in the garage.

 

[mike350]

Sounds like an ok install to me as long as there is just the one double socket in the garage.

As it happens there are 2 double sockets in the garage now, although when fitted new there was only one, but the second was based on how the other properties are wired - as on the face of it, it is/was identical