Gidday there Dapo!.
Just a small question,
With respect to Neutral and Earth Busbars in switch-boards, when our Regs changed here in 1992, we were told that you were no longer allowed to connect the Main Earthing Lead to the Neutral B/bar, which was where it had been connected to in all the houses wired previous to this change.
The Main Earth lug, was usually placed on the same stud as the Main Neutral and the Neutrals of the Range and the Hot-Water Cylinder, was this ever the case in Australia at any time?. [Linked Image]
Nowadays, the Main Earth is required to be connected to the Earth B/bar and it is actually illegal to fit it to the Neutral bar, there must be a link that can be readily removed for testing purposes.
Just wondering. [Linked Image]
Oh, sorry Graham, what I forgot to mention was the fact a lot of houses here, never even had an Earth Busbar, but just had a Line Tap in the back of the switch-board that was joint to a thick wire, (normally 7/.036") and that connected to the Neutral bar.
And to a certain extent, quite a few houses here didn't even have 3 core wire or a suitable Earth Electrode!. [Linked Image]

[This message has been edited by Trumpy (edited 01-12-2004).]