nanog mailing list archives
RE: Reminder: Never connect a generator to home wiring without transfer switch
From: John van Oppen <john () vanoppen com>
Date: Tue, 31 Aug 2021 05:10:14 +0000
Yes, most grounding out now that utilities do for work is all phases to one another, to the neutral and to the ground. From: NANOG <nanog-bounces+john=vanoppen.com () nanog org> On Behalf Of Mel Beckman Sent: Monday, August 30, 2021 10:59 AM To: Aaron C. de Bruyn <aaron () heyaaron com> Cc: NANOG Operators' Group <nanog () nanog org> Subject: Re: Reminder: Never connect a generator to home wiring without transfer switch Aaron, Your incorrect assumption is that lineman are tying phases to earth ground, a discontinued practice that killed many lineman up through 1980, despite its seeming faultless logic. The current safety practice is called “equipotential grounding”, which doesn’t go to earth. Thus an backed can change the balance of potentials, resulting in lethal currents. As other have pointed out with real-word examples, this is a major safety issue, cause by the many “dumb enough” DIYers out there. All explained elsewhere in the thread. I recommend you review the previous discussion, to avoid creating a NANOG bridge loop :) -mel On Aug 30, 2021, at 9:43 AM, Aaron C. de Bruyn <aaron () heyaaron com<mailto:aaron () heyaaron com>> wrote: I've been following the thread. If I'm dumb enough to back feed through the transformer into the downstream side of the downed line, how is it going to be a problem if linemen are grounding the phases on *both sides* of the work area. That's what Ben seemed to be implying.
Current thread:
- Re: Reminder: Never connect a generator to home wiring without transfer switch, (continued)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Warren Kumari (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Aaron C. de Bruyn via NANOG (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Tom Beecher (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Warren Kumari (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mel Beckman (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Jay Hennigan (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mel Beckman (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mel Beckman (Aug 30)
- RE: Reminder: Never connect a generator to home wiring without transfer switch John van Oppen (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Herb L (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 30)
- Message not available
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 30)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 25)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 25)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Sabri Berisha (Aug 25)
- Re: Reminder: Never connect a generator to home wiring without transfer switch Mark Tinka (Aug 25)