Hi Everyone
I realy enjoy this site , it is very imfomative. I have two questions regarding neutral being tied to ground. I am pretty sure when I first stared in the trade in Canada , that different cities or communities would have different codes in dealing with when your neutral would be tied to ground at the main panel comining into the house. There would be a bonding screw that Would tie the neutral to ground. Some inspectors would have us remove that screw and others would make us leave them in , (according to my memory). Is it to do with the utilities upstream or am I out to lunch on this one. My second question is along the same lines. Please correct me if I am wrong.
If I was to put a large 3 phase sub panel donwstream from a main panel , could I not just run four conductors from the main panel and then put in adequate grounding at the sub panel end with ground rods .The cost saving for not running that extra conductor is the reason. I would only need a 15 foot piece of ground rather then a 400 foot piece. (assuming the megger resistance reading at both locations is the same) I have had an electrical inspector tell me that by having a seperate ground for that sub panel that I would create a floating ground that would affect some communication equipment. He said that 5 conductors would always need to be run back to the main panel or main point of distribution . Help me out!
Greg Smith
Camp Black Bear
Bosnia
