On 13 Sep 2024 at 12:56, (-Phil-) via EV wrote: > You shouldn't be pulling more than 20A on #12 anyway
For sure, and that only for short periods. Continuous loads shouldn't exceed 16 amps (80% of maximum). Not to be too preachy here, but if you really have AWG 12, your wiring is pretty seriously undersized - dangerously so, unless it's protected with a fuse or breaker at 20a, which doesn't seem to be the case. For 40 amp protection, AWG 8 copper or AWG 6 aluminum would be the minimum. However, the NEC recommends (but I don't think requires) no more than 5% total voltage drop from main panel to point of use. At 500', AWG 4 copper will get you 6% voltage drop, and AWG 1 aluminum 5%. David Roden, EVDL moderator & general lackey To reach me, don't reply to this message; I won't get it. Use my offlist address here : http://evdl.org/help/index.html#supt = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = How is the world ruled, and how do wars start? Diplomats tell lies to journalists, and then believe what they read. -- Karl Kraus = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
