vxwestie
-
- Reaction score
- 85
Been called out to an existing customer today where a 30amp Wylex fuse carrier had burnt out. After sorting that out i proceeded to talk to the client and ended up with the job of replacing the fuseboxes with MCB board. (currently 2 x 8way wylex units)
After noting that the tails were ok and it was going to easy enough to replace the main earthing conductor (PME) the problem of the bonding conductors arrose.
The property is a late 1970's very high spec "designer" property, three split levels and 5 beds. BUT the consumer unit is on the top level and the Water/oil incoming supply is on the lowest level. (probably a 50-60m run from the consumer unit). The whole building is pre-cast concrete, walls/floors and most ceilings, most of the existing cabling is in ducts/conduit and with cpc in the lighting circuit im happy very little else will have to be touched. HOWEVER the only direct cabling run for any 10mm earth wire would be 50-60m run of surface mounted trunking, ceiling mounted (currently fancy coving, glass panels, hardwood decor) around doors, stairwells down walls with numourous direction changes etc, etc. ... with the high spec of the decor etc its something neither myself or the elderly couple are keen on and will probably cease the job.
As an NICEIC approved contractor I should probably know the answer to this, but having never contiplated leaving small bonding before ive never considered it.... What regs will i break? what harm? would there be with leaving the 6mm conductors in place? Can it just be a matter of a deviation noted on the completion cert? "upgrade of bonding conductors not practicable" ????
I maybe able to pick up a new 10mm bond on the water closer and easier (but not at incoming posistion), but with the oil so far away it isnt going to be easy.
Whats people's opinions?
After noting that the tails were ok and it was going to easy enough to replace the main earthing conductor (PME) the problem of the bonding conductors arrose.
The property is a late 1970's very high spec "designer" property, three split levels and 5 beds. BUT the consumer unit is on the top level and the Water/oil incoming supply is on the lowest level. (probably a 50-60m run from the consumer unit). The whole building is pre-cast concrete, walls/floors and most ceilings, most of the existing cabling is in ducts/conduit and with cpc in the lighting circuit im happy very little else will have to be touched. HOWEVER the only direct cabling run for any 10mm earth wire would be 50-60m run of surface mounted trunking, ceiling mounted (currently fancy coving, glass panels, hardwood decor) around doors, stairwells down walls with numourous direction changes etc, etc. ... with the high spec of the decor etc its something neither myself or the elderly couple are keen on and will probably cease the job.
As an NICEIC approved contractor I should probably know the answer to this, but having never contiplated leaving small bonding before ive never considered it.... What regs will i break? what harm? would there be with leaving the 6mm conductors in place? Can it just be a matter of a deviation noted on the completion cert? "upgrade of bonding conductors not practicable" ????
I maybe able to pick up a new 10mm bond on the water closer and easier (but not at incoming posistion), but with the oil so far away it isnt going to be easy.
Whats people's opinions?