Yes, I was aware that filling stations in the U.K. are prohibited from using the PME system, although I've never had to work in such an environment.
In the U.S., chapter 5 of the NEC covers "Special occupances" and it would appear to me that gas stations would be covered by article 514. I've browsed through it quickly, but I can't see anything in it which changes the standard American TN-C-S equivalent supply system.
I'm sure we must have some Stateside members who could provide some more details? Is there anything in any other NEC sections which might apply here, guys?
