RADIAL / SPUR

MCOLLARD · Posted: Mon Jan 24, 2005 12:53 pm Post Subject: RADIAL / SPUR

HOW CAN I TELL WHETHER A SINGLE CABLE IS A SPUR OR THE END OF THE RADIAL CIRCUIT ?

mapj1 · Posted: Mon Jan 24, 2005 1:57 pm Post Subject:

Only by knowing where it goes - in a radial circuit there are as many ends as branches. Either measure with a meter, or isolate the circuit in sections.
regards M.

ps please dont SHOUT unless you want to make a special point, its only for EMPHASIS. thankyou.

MCOLLARD · Posted: Mon Jan 24, 2005 2:00 pm Post Subject:

I'm shouting because thought it would be a simple job!! I have a single cable going into a wall and disapearing into thin air and i can't work out where it goes!!

MCOLLARD · Posted: Mon Jan 24, 2005 2:03 pm Post Subject:

I want to move a plug socket up a couple of inches, but the cable is not long enough. Apart from replacing the cable (as i cannot tell where it comes from) how else can i make the cable reach further up?

SwindonSpark · Posted: Mon Jan 24, 2005 2:34 pm Post Subject:

Crimp it.

Use this: -
http://www.screwfix.com/app/sfd/cat/pro.jsp?id=18475&ts=77118

With these: -
http://www.screwfix.com/app/sfd/cat/pro.jsp?id=75317&ts=77118

MCOLLARD · Posted: Mon Jan 24, 2005 2:39 pm Post Subject:

is it then ok to bury this behind plaster ?

SwindonSpark · Posted: Mon Jan 24, 2005 3:09 pm Post Subject:

Inside this: -

http://www.tlc-direct.co.uk/Main_Index/Conduit_Pvc_Index/Oval_Pvc_Tube_and_Clips/

MCOLLARD · Posted: Mon Jan 24, 2005 3:11 pm Post Subject:

great thanks for your help....much appreciated. think i might be using this website more in the future !!!!

ban-all-sheds · Posted: Tue Jan 25, 2005 5:47 pm Post Subject:

Surely you know whether the circuit that supplies the socket is a ring or a radial???

Not that knowng that would help you find the other end of the cable....

__________________
I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

MCOLLARD · Posted: Tue Jan 25, 2005 5:50 pm Post Subject:

If i knew do u think i would ask Banal shed!

ban-all-sheds · Posted: Tue Jan 25, 2005 6:05 pm Post Subject:

Thank you for being so polite.

Why don't you find out? It's not difficult to establish.

And while you're at it, explain how knowing whether it is spur off a ring, or a branch of a radial, or the end of a radial, makes any difference to the fact that you can't find where it runs from, and so you can't replace it...

__________________
I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

fiz · Posted: Tue Feb 21, 2006 8:59 am Post Subject:

one way would be to look at the fuses

if there are two cables in
the fuse for the sockets
this may indicate a ring

test continuity of ring

also test the resistance at each socket after
looping the cables
if you have done your 2391 you should
know what reading you should get

if you are unsure
consult an electrician before anything goes
bang

ban-all-sheds · Posted: Tue Feb 21, 2006 10:05 am Post Subject:

Fiz - it's been over a year - I expect it's sorted by now...

fiz · Posted: Wed Feb 22, 2006 8:19 am Post Subject:

oops

not been on for about a year
i did,nt look at the date.sorry

you might be able to answer a question for me

i am having an extention.
and the kitchen needs wiring

the choice is radial or ring

with it being a kitchen i would have thought
a 4mm2 cable 30amp
after checking diversity

it would be easier to wire a ring in 2.5 but are they not being
phased out in england.

what are your thoughts B.A.S

ban-all-sheds · Posted: Wed Feb 22, 2006 1:41 pm Post Subject:

fiz wrote:

it would be easier to wire a ring in 2.5 but are they not being
phased out in england.

Not AFAIK.

My personal opinion is that they are an abberation, and are to be deprecated, so in your position I would install a radial.

If you installed a ring, would the loads be balanced around it?