Undersized Main Earth Conductor

Hi stakes electrical:

Hi Folks,

I was carrying out an EICR on a domestic property with a PME supply.

The Main earth conductor is 10mm, the water and gas bonding is also 10mm connected to the earth terminal in the consumer unit.

Would you give this a C3 or C2?


I know there's an equation knocking about for checking main earth conductors however, I'm under the impression that this only works if the bonding conductors are terminated at the MET and not the consumer unit.


Any suggestions will be welcome.


Thanks

 I like Table 54.7. No maths involved.


Z.

Hi stakes electrical:

Hi Folks,

I was carrying out an EICR on a domestic property with a PME supply.

The Main earth conductor is 10mm, the water and gas bonding is also 10mm connected to the earth terminal in the consumer unit.

Would you give this a C3 or C2?


I know there's an equation knocking about for checking main earth conductors however, I'm under the impression that this only works if the bonding conductors are terminated at the MET and not the consumer unit.


Any suggestions will be welcome.


Thanks

 I like Table 54.7. No maths involved.


Z.