Regulation 434.5.2 exceeding limiting temperature of conductor.

[HappyHippyDad]

Ze test should not include the bonding, you are verifying the impedance of the means of earthing, extraneous conductive parts are not generally permitted as a means of earthing so should be excluded from the test.....PSCC/PEFC should include the bonding as parallel paths may reduce the impedance of the actual fault path and increase PSCC/PEFC.

I realise that Wirepuller, although my post was probably not clear enough! Zs = 0.2 and Ze = 0.17. I doubt the R1+R2 of the cooker circuit is 0.03, so I made a bit of a shot in the dark at the bonding being the reason!

 

[Risteard]

Depends on earthing type, would affect the PSCC on a TNCS/PME system.

Well with all earthing systems the neutral is earthed (otherwise it wouldn't be neutral), but point taken that with TN-C-S it may have a more severe effect on it.