Another question on my kitchen.

[Bahco]

I have 2 sockets in the kitchen that are both supplied by a single cable (each) and I need to put them on a ring main if poss.

Having checked all my sockets throughout the house I have established that the only sockets supplied by the one (32 amp) are these 2 spurs and I believe they may both legs to a ring main that have been taken to the kitchen.

Looking at the Consumer unit this MCB has 2 supplys connected to it further corroborating my theory.

How do I check this without getting all the boards up and tracing?

 

[securespark]

Are you sure they are the only outlets that power up? Can you visually inspect the cable along its length?

What you don't want to do is connect these legs up as part of a new RF circuit, only to find that along they way there's a JB with a bit of 1mm² tapped off it...Can you approximate the length of these legs? Then you could measure resistance of each and see if the two tally, having discovered the resistance per metre of 2.5/1.0 or 2.5/1.5 whatever the CSA of the cable is.

The only small point is this won't highlight any spurs off those legs of cable. The only surefire way of doing this is a visual.

 

[Bahco]

Are you sure they are the only outlets that power up?

Hi SS
Yes I have charted each socket and know there is only these 2 on that MCB

Can you visually inspect the cable along its length?

Unfortunately not as there is a tiled floor above.

Would a continuity test confirm they are linked?

 

[securespark]

If you do the test described, then if they were linked, shorting one pair of conductors at one outlet would make a short appear on the other cable.

 

[ColJack]

take the ends out of the breaker and neutral bar and seperate them.. then short out one end at the socket..
if you get no reading on the other then they are on 2 radials..

I've offered my services more than once.. I'm only down the road you know..

 

[Bahco]

Hi Coljack.

I will PM you.

 

[securespark]

take the ends out of the breaker and neutral bar and seperate them.. then short out one end at the socket..
if you get no reading on the other then they are on 2 radials..

I've offered my services more than once.. I'm only down the road you know..

Isn't that what I said?

 

[securespark]

Having just re-read my post, I apologise! I wrote another paragraph about how to disconnect the cable ends & test them, but this appears to have been deleted...

 

[ban-all-sheds]

It is a well known, but little understood, fact that keyboards malfunction more often on Friday and Saturday evenings than they do over the whole of the rest of the week...

 

[Lectrician]

cant you simply drop ne ofthe lives out of the MCB and check one socet goes dead, and then do the same with the other?

If you turn off this MCB and EVERYTHNIG in the house remains live, I think it is pretty self explanitory.

 

[ColJack]

we're trying to establish if these are radials off a ring, possibly from JB's under the floor above etc..

 

[Lectrician]

So doing what I say would determine this.

 

[ban-all-sheds]

Best to avoid testing live if possible..