Outdoor socket

I have installed a outside socket, wired it the apropiate cable using 13amp plug too plug into a indoor socket all tested to make sure wired correctly.Soon as I turn any appliance on outside it trips the RCD in the consumer box. Any ideas what is causing this please

at a guess...
Either the appliance is faulty,
or you've wired it wrong,
or the cable is damaged...
N & E shorted..
N & E crossed..
etc..

Correct dead testing prior to energising would prevent these sort of problems..

What happens if you plug something else into the internal socket instead of the lead to the outside socket?
Plug something in that has an earth connection to it

Have you done any testing of the circuit prior to adding it or tested the new socket in any way other than plugging something in? What was the result?

Plugged in my socket tester all was ok

kerching said:

What happens if you plug something else into the internal socket instead of the lead to the outside socket?
Plug something in that has an earth connection to it

Click to expand...

Works ok

Is it a case that I'm overloading that side of the consumer unit

Is it a case of uprating the RCD from 80A- 30ma to 100A-30ma

Nope, it’s a fault that needs correct test equipment.

@STAN54 said:

Is it a case of uprating the RCD from 80A- 30ma to 100A-30ma

Click to expand...

The 80A (Amps) is the amount of current that the RCD can safely switch off when it operates, so changing it to one that can switch off 100A (Amps) would be of no use what so ever, since the problem will still be there.
The fault that is causing the problem needs to be found, this is often best carried out by using the correct test equipment, which is what Sharpend said.

@STAN54 said:

Is it a case that I'm overloading that side of the consumer unit

Click to expand...

no, its a case of you ****ed up. take it all apart and put the wires in the correct terminals this time. or repair the neutral thats squashed against earth, although thats not as likely as the first...

Show pics of your connections.

Some basic socket testers need to be binned ….

@STAN54 said:

Plugged in my socket tester all was ok

Click to expand...

Most socket testers cannot detect a Neutral & Earth reversed fault...

But a N-E reverse would trip the RCD..

@STAN54 said:

Is it a case of uprating the RCD from 80A- 30ma to 100A-30ma

Click to expand...

No, all this shows is that you have no understanding of what an RCD actual does..

It is there to detect electrical leakage current.. i.e. electricity flowing to earth..

Both of the RCD's you describe will detect 30ma leakage..
which actually means..
they both must not trip at 15ma..
they both must trip at 30ma..
and they both could trip anywhere from 16ma to 29ma as well.

You have got a fault with your wiring..
which would have been detected had you done correct 'dead' continuity, polarity and insulation resistance tests,
prior to energising your alteration..

If you say the appliance works ok in another socket then that still leaves some other items from my earlier list you need to check..

Either you've wired it wrong or the cable is damaged...

My guess N & E shorted or N & E crossed..

In its simplest form

Didn't trip before the addition
Trips after the addition
So there's a fighting chance it's the addition that is wired wrong or has a 'fault from new' on it

Simples

There's only really 4 options.
Faulty main socket your drawing the power from. Faulty wiring in the plug. Damaged wire or faulty wiring in the outdoor socket.

How to check. Eliminate the main socket by running a extension to another socket not on the same ring main.
Check the plug and socket to make sure it's wired correctly. Of all above is correct Then change cable

@STAN54 said:

Plugged in my socket tester all was ok

Click to expand...

It needed more than a socket tester to check it before you made it live. Aside from saying get someone qualified in to check it and fix it I'd suggest you have got your cables mixed up so turn the power off and check they are correctly connected. Most likely the N and E are crossed which your tester wouldnt identify. The equipment you are plugging in can be checked elsewhere to rule that out of the equation

@STAN54 said:

I have installed a outside socket, wired it the apropiate cable using 13amp plug too plug into a indoor socket

Click to expand...

Just out of interest, what is the cable you have used? im assuming 1.5mm flex, or have you used t&e?
Im guessing N & CPC reversed with in the plug or in the socket