Not rite....but how wrong is it ?

[zedess]

Work to bond the gas yesterday,when i got to the consumer unit,which had recently been changed,there was no sign of the 10mm earth for the water bond,which i was assured was in place....investigation finds 10mm from stop cock outside to an earth rod,and 10mm from stop cock to the gas pipe on a very handy combi boiler which has been supplementary bonded!

 

[Sintra]

I would say very wrong as all main bonding conductors have to connected to the MET along with the main system earthing conductor.

 

[IQ Electrical]

Work to bond the gas yesterday,when i got to the consumer unit,which had recently been changed,there was no sign of the 10mm earth for the water bond,which i was assured was in place....investigation finds 10mm from stop cock outside to an earth rod,and 10mm from stop cock to the gas pipe on a very handy combi boiler which has been supplementary bonded!

542.4.1 In every installation, a main earthing terminal shall be provided to connect the following to the earthing conductor:

The cpc's

The protective bonding conductors

Functional earths

LPC's

 

[rocker]

Yep, wrong wrong wrong. I think you'd be introducing different earth potentials to the place, which is one of the things bonding tries to get rid of.

 

[zedess]

Enough said...thanx to all