> Sure about that? I don't have my NFPA book here, but when I wired my hous= e some 12 years ago, I was required to use a grounding rod next to my meter= /main and then another ground bond wire back to my copper water pipe, under= the PRV. Yeah I remember that one because the inspector made me wrap green= tap around the black wire to indicate its ground. While I cannot attest to the national electrical code, as I am not an elect= rician, they have been tied together in every breaker panel I have ever had= the cover off of. > -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf = Of Dave Tweed > Sent: Friday, July 11, 2014 2:24 PM > To: piclist@mit.edu > Subject: Re: [EE]: Grounding SMPS and earthing. > > Vitaliy M wrote: >> On Jul 11, 2014, at 10:26, Justin Richards w= rote: >>> >>> Earth and Neutral are connected >>> together in the meter box where the power enters the house. >> >> AFAIK this is not true in most cases, at least in North America. Earth >> is a separate conductor, connected to an earthing rod. > > It is MOST DEFINITELY TRUE in North America -- the neutral is REQUIRED to= be bonded to earth at the main braker -- and ONLY at the main breaker. > > -- Dave Tweed > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/cha= nge your membership options at http://mailman.mit.edu/mailman/listinfo/picl= ist > > This e-mail (and any attachments) is confidential and may be privileged. = Any unauthorized use, copying, disclosure or dissemination of this communic= ation is prohibited. If you are not the intended recipient, please notify t= he sender immediately and delete all copies of the message and its attachme= nts. > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist =20 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .