Power to Shed

[Donkey_uk]

HI Can anyone please advise me on the correct rcd and cable for power to my shed

I would like to run a power lead from the consumer unit to my shed , my unit has RCBOs, should I use a 16am RCD A / B or RCBO from the main board? This will then go to my shed into a 2 switch consumer (shed unit) also what size cable should I use. I know I should use SWA but I would run this above ground and along a wall and I will also put this inside cable trunking, so would normal 6mm twin & Earth cable be ok?



I will be running the following in my shed

Freezer

Tumble dryer

2 Sockets

2 outside light and 1 inside

 

[buzzlightyear]

I would like to run a power lead from the consumer unit to my shed , my unit has RCBOs, should I use a 16am RCD or RCBO from the main board? This will then go to my shed into a 2 switch consumer (shed unit) also what size cable should I use. I know I should use SWA but I would run this above ground and along a wall and I will also put this inside cable trunking, so would normal 6mm twin & Earth cable be ok?

advise a spark in part p job.

 

[Donkey_uk]

advise a spark in part p job.

???? what do you mean

 

[buzzlightyear]

???? what do you mean

the spark to come in and install and test and part p / building control.

 

[Donkey_uk]

the spark to come in and install and test and part p / building control.

So is this something i can do? only a spark can do this and i need to get building control involved ?

 

[pc1966]

Adding a new circuit to the CU in notifiable work in England & Wales under Part P of the building regulations.

While you can get the paperwork done via the council, they will charge you far more than an electrician who is already a member of one of the "competant person" schemes such as NICEIC (or SELECT in Scotland).

 

[buzzlightyear]

So is this something i can do? only a spark can do this and i need to get building control involved

one question are you insured for this type of work and what qualifications are there .

 

[David Prosser]

So is this something i can do? only a spark can do this and i need to get building control involve

It is something you should not be doing. It should be regestered with your local building control.

 

[pc1966]

Simplest option is to find a registered electrician and discuss what you want.

You can save money by doing the donkey work of installing the cable, but you have to have all of that agreed in advance as the electrician is the one signing off the work and they need to know the right cable was used and installed in a suitable manner. Their --- is on the line if it goes wrong.

 

[Donkey_uk]

Ok thank you guys, I will leave it be lol

I take it I can run sn extension lead to the shed is that correct ?

 

[buzzlightyear]

Their --- is on the ling if it goes wrong

and saw is the op if he does it .

 

[pc1966]

Typically a tumble dryer uses quite a lot of current, I would be very sceptical of having that along with a freezer, etc, on an extension lead. If it goes you loose the food!

 

[Donkey_uk]

Ok

Thank you all for the advice

Much appreciated

 

[pc1966]

Your original idea, a dedicated circuit, is best by far but you really ought to be sizing it for at least 20A if feeding that lot.

If the freezer has valuable amounts of food in it you might want to consider having it on a dedicated circuit, or arranging some sort of alarm in the event of power loss.

 

[buzzlightyear]

Typically a tumble dryer uses quite a lot of current, I would be very sceptical of having that along with a freezer, etc, on an extension lead. If it goes you loose the food

I love ice cream flouting out of a defrosted freezer and so do dogs .lol.

 

[Dustydazzler]

Ok thank you guys, I will leave it be lol

I take it I can run sn extension lead to the shed is that correct ?

yes of course you can but you might get some voltage drop

 

[pc1966]

If you have to use an "extension lead" arrangement to avoid the Part P restrictions and cost, then please at least use outdoor rated cable to make one up, such as H07RN-F like this:

Superlec 3CORE 1.5MM 3183P H07RN-F EPR / PCP FLEXIBLE MAINS CABLE - EN60332-1-2

H07RN-F Cable is a non armoured flexible mains and control cable designed primarily as a trailing cable for use in the supply of energy for portable or mobile equipment.The cable is Ideal for use with transformer pumps, welders grinders, temporary lighting cable and feed cables to heavy mobile...

www.superlecdirect.com

That is probably OK to around 30-40m on voltage drop, otherwise you would need to look at 2.5mm even for a 13A extension.

You still need to clip it away from any mechanical dangers, and it is not suitable for burial in the ground, but it is easy to work with and fairly cheap (sold by the metre in many places). At the shed it can be terminated in a 4-way 13A socket block and you can plug things in there, also any lights on a plug with 3A fuse.

 

[pc1966]

Of course it has to be from a RCD-protected socket, but you mentioned an RCBO board so I guess that is already in place.