How to tell if socket is on ring or spur off spur

[bleach]

Ok so you have the classic to cables in back of socket. Spurs should be identifiable through higher resistance but if very short spurs and it's an older install and you want to break into the ring to add another socket. You could be creating a spur off spur off spur?

How do u go about being certain in this scenario before the addition and do u always do it in practice?

 

[Pete999]

Ok so you have the classic to cables in back of socket. Spurs should be identifiable through higher resistance but if very short spurs and it's an older install and you want to break into the ring to add another socket. You could be creating a spur off spur off spur?

How do u go about being certain in this scenario before the addition and do u always do it in practice?

Test the continuity of the the Ring Final r1,r2,rn, (R1+R2)

 

[Leesparkykent]

Maybe if you don't know which basic test to carry out to ascertain this you shouldn't be carrying out the job in the 1st place.

 

[Octopus]

I'd there is one cable then it's likely to be a spur. If there are 2 cables test for a ring.

 

[telectrix]

if you have 2 cables in a socket outlet, split them then test from 1 to the other for continuity. ( best done with power isolated :ack2: )

 

[Deleted member 9648]

Interesting reading the OP's post history.....I assumed DIYer....clearly not.

 

[bleach]

Thanks tel that's the confirmation I was what I was after

 

[Octopus]

Thanks tel that's the confirmation I was what I was after

so what was "wrong" with my advice then???????????????????

 

[Jonspark]

i didn't want to answer, thought it was a trick question

 

[Octopus]

if you have 2 cables in a socket outlet, split them then test from 1 to the other for continuity. ( best done with power isolated :ack2: )

But unless the test is done at the cu too then it could simply be a loop off a radial

 

[Pete999]

Test the continuity of the the Ring Final r1,r2,rn, (R1+R2)

So what's wrong with my suggestion then ??????????????????????????????????????????????

 

[bleach]

Sorry guys all posts spot on. Thanks Murdoch sorry if I implied wrongly. My apologies. Happy days

 

[Pete999]

Sorry guys all posts spot on. Thanks Murdoch sorry if I implied wrongly. My apologies. Happy days

Don't I get a thanks then post 2?????????????????????????????????????????????????

 

[Leesparkykent]

Don't I get a thanks then post 2?????????????????????????????????????????????????

probably not because you liked my post #3 lol

 

[Octopus]

Sorry guys all posts spot on. Thanks Murdoch sorry if I implied wrongly. My apologies. Happy days

My 2nd post is really valid. I was fault finding a "ring" a few weeks back, which at a socket "looked" like a ring and tested as a ring BUT at the CU it turned out to be 1 x radial and 1 x lollipop - on a 32A breaker.

 

[bleach]

Definitely valid. Lollipop snares!!! Cheers. I started this thread to highlight to my buddy these issues which have panned out lovely so thanks again all I hope others may find this of use who stumble across it.

 

[Pete999]

probably not because you liked my post #3 lol

So you screwed up my chance of getting a thanks even though your post was probably spot on lol

 

[Corpy76]

Isolate the circuit and connect phase and cpc (R1 + R2) of cable 1 together and do the same to cable 2. At your socket you should have 2 cables with continuity between R1 + R2. Still worth checking the whole circuit out though, R1, RN, R2, R1 + RN and R1 + R2. Best not to use a plug in test lead on old sockets as loose contacts etc can throw the readings out, drop the fronts and take the readings from the screw terminals.

 

[7029 dave]

Sorry OP, but if you have to ask an basic question on this, are you competent to do this work.?

 

[martinxxxxxx]

Trouble is; how many JBs are under that floor