- Reaction score
- 199
The minimum size for a bonding conductors with a PME supply is 10mmIt's (theoretically) possible that by applying the calculations for minimum supplementary bonding csa that if it comes back in small enough (min 4mm) that your SWA armoured might be up to the job, in which case just extend the PME. Have a read of GN8.
see Reg 544.1.1 & table 54.8
I believe this is todo with high current under PEN fault conditions and the potential for diverted neutral currents