Extending Outdoor Power with 2 double sockets

[JohnH]

Hello, would appreciate a steer please for extending power further into the garden. Fuse box has a dedicated fuse (see pic) for Garden providing 16amp. Had an electrician that has previously connected armoured cable from existing double socket in garage into new shed providing a double socket, with a 3amp fused spur providing a light (see pic). Now want to extend further to provide 2 further double waterproof sockets - one for small summer house and other near arbour for music.

Not sure whether I can spur off shed double plug or have to wire in something different to provide desired outcome, thank you in advance.

 

[Midwest]

Hi John, welcome to the forum. You could just get your electrician back to carry out these works?

 

[JohnH]

Thanks but firstly I’d like to know whether what work has been completed so far is something I can work from. Secondly the electrician used to work for an alarm company and he has now left.

 

[buzzlightyear]

welcome johnH ,it would be advisable to get a spark in the extend the circuit for the said works , you not insured for the work .where a spark is .

 

[Dustydazzler]

This isn't a DIY job

Get a quote from a reputable handyman … I mean sparks

 

[JohnH]

Clearly understand the competencies required. Based on what is required to complete the work (which I am asking) will determine what part P regs are required and whether notifiable or not. I believe this work is not but will absolutely make sure it is inspected and certified once completed. Even if that means completing the work (once I know how) but NOT actually terminating it so that work is isolated until inspected/certified if a qualified spark needs to do that cheers

 

[littlespark]

It’s a radial circuit on a 16A. You can branch off anywhere.

OP is wanting to do a good job of this. Would be different if he was thinking of running it in flex and just plugging it in..... which is how B&Q would allow it. Even sell ready made kits. Plug - flex - outside socket.

 

[Charlie_]

You can get light switches that have a N terminal, so no need for a bullet connector

 

[JohnH]

Thanks really helpful. It will be a quality job, OCD helps ;-) and certified for sure. So as radial circuit a fused spur for the 2 further double sockets? Thanks again

 

[buzzlightyear]

WE DO NOT GIVE BY STEP BY SEP INSTRUCTIONS HOW TO DO IT ,SEEK A QUILIFED SPARK ,SAID IT .

 

[buzzlightyear]

OP is wanting to do a good job of this. Would be different if he was thinking of running it in flex and just plugging it in..... which is how B&Q would allow it. Even sell ready made kits. Plug - flex - outside socket.

there is a differences on how to do it or cock it up differences.

 

[Spoon]

I'm with @littlespark on this.

OP: It's Sunday morning and my brain isn't switched on properly. But I'm feeling happy.
It is possible to extend the existing circuit.
Would be good for me if I knew more info.
Any chance of a block drawing showing house, shed, summer house and arbour positions, relative to each other.
Cable distance may also be an issue, so distances from each other would also be good.
Do you know size of existing cables? House to garage. Garage to shed.

 

[Spoon]

OP: Regarding Part P. See below.
As you are extending a circuit and the location is not a 'special location' I would say that this work is not notifiable.

 

[Dustydazzler]

It’s a radial circuit on a 16A. You can branch off anywhere.

OP is wanting to do a good job of this. Would be different if he was thinking of running it in flex and just plugging it in..... which is how B&Q would allow it. Even sell ready made kits. Plug - flex - outside socket.

One of these jobbies …..

 

[JohnH]

Thanks Spoon. Pic attached of building layout and approx measurements. Cable for the complete run into garage and to shed and will use the same for summer house and arbour is SWA Cable 3 Core 2.5mm.

 

[Deleted member 105166]

One of these jobbies …..

Digressing slightly, but those plugtop RCD adaptors often don’t fit into the shrouded outdoor sockets pictured, as the flange sits too proud.

 

[Charlie_]

Looks like it would be easier to go from house to arbour?

 

[Deleted member 105166]

Aren’t arbours a special location (section 709)?

 

[MJPD29]

Can't see any issue with what is shown in the drawing

 

[Spoon]

Aren’t arbours a special location (section 709)?

Nope. Check out post #13 which states what a 'special location' is.

 

[Spoon]

Hi @JohnH . As mentioned above by @Charlie_ , wouldn't it be better to go from a house circuit to the arbour?

 

[Charlie_]

Aren’t arbours a special location (section 709)?

It didn’t go over my head

 

[Deleted member 105166]

Nope. Check out post #13 which states what a 'special location' is.

@Spoon Section 709 - Marinas & Similar Locations...

 

[Dustydazzler]

Digressing slightly, but those plugtop RCD adaptors often don’t fit into the shrouded outdoor sockets pictured, as the flange sits too proud.

The rcd plugtop is for inside the house to feed the weathershield socket outdoors

It’s a DIYers product

 

[Spoon]

@Spoon Section 709 - Marinas & Similar Locations...

wow... sorry mate... Monday morning.... Only just got it..

 

[Deleted member 105166]

The rcd plugtop is for inside the house to feed the weathershield socket outdoors

It’s a DIYers product

OK, understood. Seeing it made me recall the scenario I described, with these type of sockets installed outside a building and the inability to connect a plugtop RCD to them.

 

[45140]

Clearly understand the competencies required. Based on what is required to complete the work (which I am asking) will determine what part P regs are required and whether notifiable or not. I believe this work is not but will absolutely make sure it is inspected and certified once completed. Even if that means completing the work (once I know how) but NOT actually terminating it so that work is isolated until inspected/certified if a qualified spark needs to do that cheers

I don't think you DO understand the Regs. Firstly do you have designer competence ? Secondly what evidence can you show to demonstrate that you are competent. Thirdly who do you think will come and undertake testing and certify work which they then take legal responsibility for without seeing it installed ? The various CPS do not allow for third party testing unless the work has been carried out under the supervision of the tester. Who will sign-off the relevant Certificate and how will you comply with the Electricians Guide to the Building Regs para 7.3 which requires tests to be undertaken before work is started ? There is also a requirement for the work that is being undertaken by an installer who is not registered on a Competent Person Scheme to be notified to the LA before work is started, para 1.4.6 and 1.4.7.
Finally have you sought the agreement of your insurance company that they will allow you to undertake electrical installation work ? If not your house insurance will be invalidated as there may well be a requirement to use only competent people.