Outside light off an already used spur in 2.5t&e

[Gary latto]

Hi guys
Wanting to put an 8 watt led light fitting outside ,
Only place I can get a supply from is kitchen ring main got a radial approx 4th long.
now issue is the radial is already feeding combination boiler and a single socket for washing machine. If I put additional spur in for outside light am I getting to close for maximum load as like I said already got 13 amp for washing machine and 3 amp for boiler so with outside light with 3 amp fuse in spur then load going to be 19ampeven those new lights won't be pulling 3 amp tia

 

[Barnaby Stedman]

could you just explain - is it a ring main or a radial?? and what is a '4th long'?
what rating is the mcb the circuit is on?

 

[ipf]

Home improvements, eh? So, is this a job you've taken on without an electrician? It is so basic.

 

[Gary latto]

Sorry 4mtrs long radial off of a rfc supply to a kitchen with 32amp mcb,
The radial currently supplies single one gang socket outlet to washing and fused spur to combine boiler,
Assuming the radial will carry 20amp safely?

 

[ChrisElectrical88]

Big diagram at the back of the appendix mate.

 

[telectrix]

washing machine will be no more than 10A when heating. just add a FCU with 3Aor 5A fuse for your outside kight.

 

[Barnaby Stedman]

is it a fused spur off the rfc or not?

 

[Gary latto]

Hi barnaby no not a fcu just a radial from/off the rfc and can't visually see where from

 

[Barnaby Stedman]

Ok cool. Did a qualified electrician install this radial? I only ask this to make sure that the radial is in accordance with appendix 15 before you go adding extra accessories to the circuit thats all.

 

[SparkyAndGeorge]

You will need to do the diversity calculations

 

[Charlie_]

washing machine will be no more than 10A when heating. just add a FCU with 3Aor 5A fuse for your outside kight.

Was so much better when washing machine had a hot n cold fill..
With the option of economy wash to bypass the heating stage of the wash..
Apparently, it’s more economical to heat cold water than to use stored hot water

 

[Gary latto]

Hi barnaby I'm unsure but I will test the circuit and see how I get on with results, assuming ill need to do a zs and ir test and compare again on site guide
Thanks guys for your replies was more just wanting confirmation that would be okay loading it up a bit more, provided I'm under 20amps

 

[ipf]

Couldn't see why you were talking about rfc and radial when only one circuit involved. It's all on one spur from the ring, I take it.

 

[Gary latto]

Hi no its a 2.5 radial of a rfc either out of a socket outlet or joint box but I can't get to find it . so I've got a radial into a single socket outlet with washing machine into it then into a spur for boiler

 

[diditrain]

Sounds like you have an unfused spur off a spur already

 

[Barnaby Stedman]

Sounds like you have an unfused spur off a spur already

Thats what I thought but wasnt sure

 

[DPG]

As above, it sounds like it doesn't comply as it is, even before you start adding more things to it.

 

[Gary latto]

Yes I've looked at appendix 15 and as uve said doesn't comply so won't be doing that then thanks for all the advice guys appreciated! !!

 

[Pete999]

Hi no its a 2.5 radial of a rfc either out of a socket outlet or joint box but I can't get to find it . so I've got a radial into a single socket outlet with washing machine into it then into a spur for boiler

no such animal Gary its a spur off an RFC which in turn feeds another spur, A radial will be fed from its own OCPD

Yes I've looked at appendix 15 and as uve said doesn't comply so won't be doing that then thanks for all the advice guys appreciated! !!

uve??

 

[Tony Reidy]

Hi guys
Wanting to put an 8 watt led light fitting outside ,
Only place I can get a supply from is kitchen ring main got a radial approx 4th long.
now issue is the radial is already feeding combination boiler and a single socket for washing machine. If I put additional spur in for outside light am I getting to close for maximum load as like I said already got 13 amp for washing machine and 3 amp for boiler so with outside light with 3 amp fuse in spur then load going to be 19ampeven those new lights won't be pulling 3 amp tia

Just say no