Ring final continuity readings.............

[mickytuff]

Hi all had a weird one today, actually make it two, tested ringfinal continuity at the board lives were 0.00 and so were neutrals, earths were the same too, not sure why, is it a ring that has been interconnected causing a duff reading??
Secondingly tested another property's ringfinal circuit and got 30 ohms, very high- across lives an neutrals, earths were 49 ohms.........has anybody discovered similiar readings as i need to put an observation against these results and i would be even happier if i knew what they suggested/what was wrong with these circuits?? :sad_smile:

 

[Geoffsd]

Hi all had a weird one today, actually make it two, tested ringfinal continuity at the board lives were 0.00 and so were neutrals, earths were the same too, not sure why, is it a ring that has been interconnected causing a duff reading??

Still wouldn't be 0.00.
Did you still have the meter nulled on wander lead?

Secondingly tested another property's ringfinal circuit and got 30 ohms, very high- across lives an neutrals, earths were 49 ohms.........

Odd that the proportions are right - just 100 times to high. Still thinking.

 

[Golden_Boy]

mickytuff;666796]Hi all had a weird one today, actually make it two, tested ringfinal continuity at the board lives were 0.00 and so were neutrals, earths were the same too, not sure why, is it a ring that has been interconnected causing a duff reading??
[/B]Secondingly tested another property's ringfinal circuit and got 30 ohms, very high- across lives an neutrals, earths were 49 ohms.........has anybody discovered similiar readings as i need to put an observation against these results and i would be even happier if i knew what they suggested/what was wrong with these circuits?? :sad_smile:

Superconductivity !!

 

[mickytuff]

the test leads were nulled before i carried out the continuity test..............

 

[Silly Sausage]

Superconductivity !!

Haha...rip them cables out and get the material patented quick!

 

[Progressing]

Might be worth checking your testers leads mate, had the same problem before even when nulled readings jump about because a dodgy connection.

- - - Updated - - -

Not sure what happened to the grammar then!

 

[NrVolts]

have you got a test resistor say 10 ohms to check your meter?

 

[Golden_Boy]

Hi all had a weird one today, actually make it two, tested ringfinal continuity at the board lives were 0.00 and so were neutrals, earths were the same too, not sure why, is it a ring that has been interconnected causing a duff reading??
Secondingly tested another property's ringfinal circuit and got 30 ohms, very high- across lives an neutrals, earths were 49 ohms.........has anybody discovered similiar readings as i need to put an observation against these results and i would be even happier if i knew what they suggested/what was wrong with these circuits?? :sad_smile:

Joking aside... what you are describing is not possible ( zero ohms ) Unless you forgot to seperate the legs at the CU !

 

[Silly Sausage]

Odd that the proportions are right - just 100 times to high. Still thinking.

Spotted!

micky, is your meter OK, does it test fine on everything else?
Batteries?

 

[mickytuff]

My testers fine, batteries fully charged, and checked readings on my spare meter, exactly the same so the readings are correct, i think the ring is interconnected very close to the board and is duffing the reading up hence the 0.00 which is obviously not a correct/compliant reading as it suggests no resistance............there must be a reason for it

 

[markc123]

Spotted!

micky, is your meter OK, does it test fine on everything else?
Batteries?

Have to agree with previous comments on this one to be fair, out of interest when was it calibrated?

 

[markc123]

...ahhh uve replied whilst i replied, if its doing it on several meters then its obviouslly not going to be them. Sometimes you can null though and immediatley after its still not nulled. There will be a simple explanation.

 

[i=p/u]

hes in swiss alps, sern ..... you cant be getting zero... dont null leads and see what they read..., maybe incorrect seting or or or oor orrrrrrrrr

 

[loop3]

Lol, golden boy? You da man!

 

[mickytuff]

so no explanation then oh well worth a try, it must b a freak of electric nature, or more likely a duff ring, either way code 2 requires further investigation to locate and then rectify........

 

[Sintra]

My testers fine, batteries fully charged, and checked readings on my spare meter, exactly the same so the readings are correct, i think the ring is interconnected very close to the board and is duffing the reading up hence the 0.00 which is obviously not a correct/compliant reading as it suggests no resistance............there must be a reason for it

Ok if you think the ring is interconnected close to the board why did you not open a socket at the half way point and test there. I would suspect ring leaving board probably straight to a JB then on to sockets.

 

[Octopus]

Seen readings like this once - the CU had been moved down the wall and the offending JB was under the floor board - the sparky had connected 4 cables into one 30A jb!

 

[i=p/u]

Seems pointless..:.. And in an eicr the code would be????