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