Timeline for How do I wire to NEC code my detached garage?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Jun 30, 2023 at 17:42 | comment | added | Harper - Reinstate Monica | @Vladimir John Ward covered it pretty well in the video. The benefit is not having to install local grounding electrodes. The downside is the ground pin can't be trusted (because it does not exist or is not real). North American EV installations are very straightforward, ground wires straight through, not interrupted. No PEN fault detection needed. Neutral faults do happen, we call them "Lost Neutral" - they can over-voltage 120V equipment, damaging it, but they do not create a shock hazard. | |
| Jun 30, 2023 at 8:20 | comment | added | Vladimir Cravero | I mean at the end of the day, the side of the transformer that you tie to ground is N by definition - it's not that simple in a three phase system ofc but you get the idea @Harper-ReinstateMonica | |
| Jun 30, 2023 at 8:19 | comment | added | Vladimir Cravero | Here in Italy the utility does not supply ground as well, but the N-GND tie happens at the utility transformers, not at the customer. I am trying to think what are the benefits/drawbacks of each approach - perhaps it's worth a separate question. | |
| Jun 29, 2023 at 21:50 | comment | added | Harper - Reinstate Monica | @Vladimir More a case that the utility is not permitted to supply ground at all. Ground doesn't exist until the customer-side main disconnect, and must be established there. That way we don't get into the TN-S and TN-C-S nonsense that is vexing Britain. youtube.com/watch?v=gZVx7GbAwlg The closest "T" designation you could call it is TT + local bonding. | |
| Jun 29, 2023 at 19:47 | comment | added | Sam Rueby | @VladimirCravero yes they are- on the customer side. | |
| Jun 29, 2023 at 15:40 | comment | added | Vladimir Cravero | Out of curiosity - do I understand this correctly, in the US ground and neutral are bonded on the customer side of the meter? | |
| Jun 29, 2023 at 3:28 | history | answered | Harper - Reinstate Monica | CC BY-SA 4.0 |