High Zs on ring final circuit

[hightower]

Ah yep, that makes a lot more sense to do it that way.

 

[DPG]

Did you find the fault(s)? If so what was it. Daz

 

[robo83]

There was a socket behind a fitted set of draws that I wasn't showen. Had to remove draws and back pannel, was a bugger. I re-tightened connections and it sorted it.


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[DPG]

Nice one. Did that sort the high r2 value? What about the spur? Daz

 

[robo83]

The R2 for the ring dropped, also for the spur. I changed the faceplate for the spur and waggo'd the connections behind the draws.

To be honest, it was my own fault. I couldn't find the where the spur was taken from when I tested, I should have known there was another socket but the lady didn't know. Only the husband did when I returned.

Lesson learned.

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[westward10]

If you are measuring end to end for the cpcs that R2 reading is way too high, sounds like continuity is breaking down which may well not be at one of the sockets. How old is the circuit, if it goes back to the early seventies the cables may incorporate 1.0 cpcs. Maybe the R2 is correct and the R1 is incorrect. But from your continuity readings the Zs should be approximately 0.58 ohm for any accessory connected direct to the ring final, the Zs of any spurred outlet will depend on its proximity of connection to the ring final.

 

[Pete999]

The R2 for the ring dropped, also for the spur. I changed the faceplate for the spur and waggo'd the connections behind the draws.

To be honest, it was my own fault. I couldn't find the where the spur was taken from when I tested, I should have known there was another socket but the lady didn't know. Only the husband did when I returned.

Lesson learned.

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Robo, please don't think I'm having a did, certainly not my intention, but " I waggod the connections" what exactly do you mean by that? as you said you had change the faceplate.

 

[richy3333]

Hi Murdoch,

That's correct and I will be tomorrow. , I noticed the high Zs prior to board change as I did pre tests and had the discussion with another Sparks who said he notes on his certs rcd protection. I said wasnt correct which brings me here.

I put the the circuit onto a 20amp tybe B until tomorrow as I've got to return with test cert.

Everything else was spot on apart from the other sparks who was there. No test cert, no Sleveing on cpc. No rcd on outdoor lighting, also the swa was just run along garden.

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not really an issue if it's self burying cable like many use around here

 

[robo83]

Robo, please don't think I'm having a did, certainly not my intention, but " I waggod the connections" what exactly do you mean by that? as you said you had change the faceplate.

Hi Pete,

I removed the double socket that was situated behind the draws and joined the cables and fitted a blanking plate.

I thought best, as the socket was not accessible.

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[Pete999]

Hi Pete,

I removed the double socket that was situated behind the draws and joined the cables and fitted a blanking plate.

I thought best, as the socket was not accessible.

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Right many thanks was a bit confused but not now

 

[robo83]

It's fine Pete,

I appreciate your advice and guidance.

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[Pete999]

It's fine Pete,

I appreciate your advice and guidance.

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No Worries mate