Supply to outbuilding

[DPG]

No point running a 6mm SWA from the FCU.
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Bet me to it Tel.

 

[Dan Carroll]

pointless upgrading to 6.0mm cable from a 13A FCU. if it's too difficult to get direct to the CU then leave as is, it's safe. just advise on the load limitations.

But then, as far as I can work out, I'm still out on volt drop. I'm over 3% by the time I get to the studio CU.

 

[telectrix]

i wouldn't worry about that, esp if LED lighting is used. bear in mind that you probably have > 230V anyway.

 

[Dan Carroll]

i wouldn't worry about that, esp if LED lighting is used. bear in mind that you probably have > 230V anyway.

My worry is that it is against 7671. I'm hoping that either I will be in a position to certify it or will have to get someone to do it.

 

[DPG]

Is this a job for a customer, or at your own property?

 

[Dan Carroll]

For a customer

 

[DPG]

Are you doing the testing and filling in the installation certs yourself?

 

[Dan Carroll]

Hopefully, I've just completed the part p course, so going to give a body a call, (prob niceic, unless you can advise otherwise), so should be able to do it myself. Concern would be if I have an assessor.

 

[DPG]

Ah right. I'm with you. So you're using this job as your assessment job to join a scheme.

 

[Baddegg]

Hopefully, I've just completed the part p course, so going to give a body a call, (prob niceic, unless you can advise otherwise), so should be able to do it myself. Concern would be if I have an assessor.

There will always be an assessor on your first job @Dan Carroll, I’d advise an easier job as your first assessment mate.....once you are a member the technical department will give you all advice you need, have only skimmed through the thread but why are you using 22 as your lb?

 

[Dan Carroll]

That's an added bonus, but primarily its for the work experience.
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There will always be an assessor on your first job @Dan Carroll, I’d advise an easier job as your first assessment mate.....

I'm going to phone them tomorrow. Can I get away with wiring a plug

 

[Baddegg]

That's an added bonus, but primarily its for the work experience.
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I'm going to phone them tomorrow. Can I get away with wiring a plug

Not sure you could write a large enough cheque for that mate ha ha ha but seriously being realistic a small Cu change is gonna be easier from a design and calcs perspective than extending to an out building...

 

[Dan Carroll]

Not sure you could write a large enough cheque for that mate ha ha ha but seriously being realistic a small Cu change is gonna be easier from a design and calcs perspective than extending to an out building...

True.

I have, in my time ignored, cut corners, and done my own thing, mechanically on helicopters, BUT it was always safe, I knew the procedures and the risks, and it was only on the item's that where not essential or important. Where you could apply common sense to get the correct result.
I feel (and again, stop me if I'm out of order) that volt drop is like that.
I appreciate that there is a time and place where it is vitally important, but to run a few LEDs and a phone charger, doesn't seem to be one of them

 

[Baddegg]

True.

I have, in my time ignored, cut corners, and done my own thing, mechanically on helicopters, BUT it was always safe, I knew the procedures and the risks, and it was only on the item's that where not essential or important. Where you could apply common sense to get the correct result.
I feel (and again, stop me if I'm out of order) that volt drop is like that.
I appreciate that there is a time and place where it is vitally important, but to run a few LEDs and a phone charger, doesn't seem to be one of them

I’m sure your corner cutting came after many years in the trade with lots of experience, I dare say you’d never even consider it at the beginning of your time? I think your doing the right thing here and trying to understand and do it properly, trouble is here once you’ve touched it and signed it off you are now responsible for it, is this install already here or are you designing it now? If so follow @telectrix advice mate...

 

[Taylortwocities]

It’s also rather pointless having a cu in the outbuilding with a 16A MCB if the origin has a current limit of 13Amp.
You are supposed to provide discrimination of protective devices.