Fault finding ring final RCBO

[Conteh]

Done a condition report on a old mains board, everything good apart from ring final, got 0.55 nn 33.7ll and 3.8 on ee, changed board to main switch and rcbos, carried out a full accessory swap on all sockets and fuse spares in house, found some bad practice, twisted lives, n and earth's, no sleeving all things to add to the high resistance problem. Retested board end to end 0.55nn 0.90 ee open ll. So changed the 32 rcbo to 2x16a rcbos broke the ring in half having 5 sockets on one side and 6 on the other. Rcbo trips! Any idea what I'm doing wrong?

I know the information isn't details but fire away with questions.

Help ?

 

[westward10]

Do both rcbos trip or just the one.

 

[Baddegg]

Bit confused with what tests you’ve done mate?...and are you saying you found a fault and then changed the board without finding the fault first??
Ignore me just read ya post properly...

 

[Pete999]

Done a condition report on a old mains board, everything good apart from ring final, got 0.55 nn 33.7ll and 3.8 on ee, changed board to main switch and rcbos, carried out a full accessory swap on all sockets and fuse spares in house, found some bad practice, twisted lives, n and earth's, no sleeving all things to add to the high resistance problem. Retested board end to end 0.55nn 0.90 ee open ll. So changed the 32 rcbo to 2x16a rcbos broke the ring in half having 5 sockets on one side and 6 on the other. Rcbo trips! Any idea what I'm doing wrong?

I know the information isn't details but fire away with questions.

Help ?

What type of wiring is employed?

 

[buzzlightyear]

32 rcbo to 2x16a rcbos broke the ring in half having 5 sockets on one side and 6 on the other. Rcbo trips! Any idea what I'm doing wrong?

yeah n/e fault possible ,you have swapped the 32 amp for 2 radials .yes. i hate it when some body's trying to wind up a elastic band on a pc or phone .lol.

 

[Baddegg]

Junction box somewhere?

 

[buzzlightyear]

changed board to main switch and rcbo

got 0.55 nn 33.7ll and 3.8 on ee

what was the r1& r2 then .

 

[Pete999]

Could be mate

 

[westward10]

@Conteh it may help if you joined in.

 

[Pete999]

what was the r1& r2 then .

Got to be summat wrong with the discrepancy with LL and NN readings, bad connection in the sockets, bad connection during testing, who knowns from afar? or the competence of the tester.