external sockets and lights

[tawraste]

i'd just like to say thank you for all of your help.
the reason the thread rambled forward is because i failed
to understand the whole concept involved with the spur
issue. in fact, browsing throughout the internet leads to
many forums with very similar threads, and because i am
learning i wanted to understand fully. i am afraid that i was
led astray by the statement "you can't put a spur on a spur".
combinations of your solutions and the above ammendment to
the regs has enabled me to understand the problem fully.

i should also have realised that you were prompting me for
load figures - i apologise ! i missed that entirely !
for the record - a little strimmer and a radio will be the extent
of the maximum demand, perhaps a radio in the evening
with the decking lights. with 5A going to the lights there will
still be loads to spare. whilst the ring is in the kitchen it does
not feed any heavy loads - its a new ring for a medium
size extension to the kitchen just to provide a bunch of
twin sockets.

i think i am going to go with the 5A plug on the transformer
only because it is a lot cheaper than adding a switch to ip55
or higher. also, i have only managed to find a fused switch
that is weatherproof to 10A so far.

 

[marcusone]

Have as many spurs as much as you like, as you are protected by a 13amp fused spur off your kitchen ring.However make sure you assess the maximum demand to ensure the circuit can not get overloaded. RCD protection also needed as you probably are aware.

A non fused spur must only feed one 13a outlet.

---------------------------------------------------------------
My understanding but happy tto be educated !!!

OOps.. Didn't read Page 2 !!!!

Looks like you guys have it all covered !!

Cheers

Mark

 

[tawraste]

ok, one more question! is it a requirement of the regs that the external socket have its own rcd on it? the whole installation is protected by an RCCB 80A 30mA, but the circuit has only a MCB.
many thanks for all your help,
tawraste

 

[electricAl]

Not necessarily it`s own, (as in a SRCD you mean?) but a 30mA RCD is needed to protect your circuit, but unfortunately a front end device won`t comply on other grounds - no discrimination (eg an earth fault on your cct would take the whole installation down - lights & all)

 

[tawraste]

nice one ! cheers!

 

[mechelec]

If the original spur is taken from a 13A FUSED spur you can then spur off that spur depending on the size of load you want to feed. The circuit is protected by the 13A fuse so will comply with the regs.

oops bit late with the reply didnt see page 2