ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades PME SUPPLIES

Paul,
Interesting link. In order to reduce touch voltages this was the advice offered on construction site situations many years ago. What is being suggested is reasonable advice but that is probably all it will remain, advice!
Paulcornwall
Re; milking parlours. PME not advisable! There are situations on PME networks (as discussed above) where there can be a perception of electric shock. Animals are very susceptible to this. At the very least they could easily be spooked.Despite your reluctance, I would respectfully suggest a separate TT system. (Remember, if you choose a TT system the SWA gland should be effectively isolated from earth on your new installation).

Hi Lyle

i have mentioned this before, but we all interpret the regs in our own way, i am not saying thats a bad thing it always creates discussion.

I will e mail the IEE and see what they have to say,
If i get a reply i will post it on here.

Cheers mate

Paul,
Please understand that I did not say that a pme supply to such a building was contrary to the requirements of 7671. Rather that it may be better to employ a different system.
In any event, rcds will generally be required for all circuits, thus banging in a spike should be of little consequence.