Sorry, I realize my question may be a bit general, as I'm trying to understand the grounding situation for both a utility-owned, and customer-owned transformers.
I completely agree- no neutral-to-ground connections after the service entrance.
So, if I'm reading you correctly, you're talking...
I understand from both relevant IEEE standards and in my case the Canadian Electrical Code that services should typically have a grounding electrode for the main service switchboard which is distinct from the ground grid on the main transformer secondary. What I don't fully understand, however...
I appreciate the thoughts and experience, John/Keith. The impetus for the question really was that my hands-on experience in this matter is minimal and I'm coming at it from a largely theoretical/design perspective.
Keith, just to clarify, my analogy regarding the Bandsaw was with regards to...
If it was purely a question of cost, I would completely agree. I'm all for safe designs. The root question here, however, is of usability and nuisance tripping. Kind of like machine guarding...there are certain machines like bandsaws that you could fully guard for safety, but make them...
Thanks to everyone for the detailed responses. This is a great community. [smile]
I think that gives me enough of the pros and cons of all options to facilitate a good conversation within our department and come up with a standard moving forward.
Hmmm, I'd never thought to look. It appears Ontario's Construction Reg 213/91 requires GFI's for tools used outdoors or in wet locations only (195.2).
Typically the responsibility for construction power would fall back on the contractor, though, and wouldn't be explicitly designed.
That's funny- I saw that section originally and jumped to the same conclusion before going back and noticing the context myself.
Thanks for the GFI breaker anecdote, and the thoughtful comparison between breaker and receptacle.
Thanks Keith. Appreciate the response.
In looking through the Canadian Electrical Code, I see specific requirements for GFCI's in Exterior applications, Pool-related areas, Patient Care areas, Elevators, and a few other specific use-cases, but I don't see a specific requirement in wet...
Hi,
This is a question we've gone back and forth over in my department but haven't come to a good conclusion on. If there are any opinions out there, I'd greatly appreciate them:
Within an industrial setting where frequent washdown occurs (in this case Food & Beverage), should general-purpose...
