New double socket in garage?

[GtechMech]

Hello to everyone out there!

I have a rcd single socket in my garage and it is the same size as a double socket.
The button on the rcd does not lock in on position - it is just springy however it does actually work intermittantly. Today I was plugging in an extension reel, which was very difficult (tight) to plug in and the rcd protecting d/st sockets tripped. (Fusebox under stairs in house)
I have a few questions:

1) Can I discard rcd socket and fit double socket as I already have rcd in fusebox?

2) Would this be safe using power tools from new double socket?

3) The light switch in the garage is taken from back of socket- is this usual-and safe? Also is it usual for garage socket to be on house ring main like this?

Many thanks in advance

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[ricicle]

If the socket is already protected by a 30mA RCD then no need for an RCD socket. It is quite normal (although not ideal) for a garage socket to be on the house socket circuit.
The garage lighting should not be fed from the socket circuit unless there is some fusing down due to a reduction in cable size. Is there not a fused or switched fused connection unit in place also ?

 

[GtechMech]

Hi Ricycle and thanks for reply

There is no FCU in garage just rcd socket feeding light switch feeding 1 bulb.
I do have a crabtree FCU with appliance marked in writing - will this do if I put a 3 amp fuse in it?

TIA

 

[ricicle]

It will be ok as long as you follow the marks correctly on the back of the FCU. Any problems come back