So where is the quote button
“550.15 (H) Under-Chassis Wiring (Exposed to Weather). Where outdoor or under-chassis line-voltage (120 volts, nominal, or higher) wiring is exposed to moisture or physical damage, it shall be protected by rigid metal conduit or intermediate metal conduit. The conductors shall be suitable for wet locations.”
This is why I hate code at times. Isn't the key to this in "(Exposed to weather)" . Once the home is placed and the skirting is up around the home it is no longer Exposed to weather. I have done mobile offices and have piped them all the way but never have a home in a park or one that sitts on a foundation. We have a manufactured home account that sets them , I have done quite a few. Possibly all wrong but I don't think so. This point is arguable simply by it's wording . SER is moisture resistant. If run in a way protected from physical damage and all the other good stuff.
quote:
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“550.33 (A) Feeder Conductors. Feeder conductors shall consist of either a listed cord, factory installed in accordance with 550.10(B), or a permanently installed feeder consisting of four insulated, color-coded conductors that shall be identified by the factory or field marking of the conductors in compliance with 310.12. Equipment grounding conductors shall not be identified by stripping the insulation.”
As for that with SER I am not stripping the insulation it comes bare. The ground wire is insulated in the SER sheathing.
It does need protection from physical damage. As long as the underside is NOT being used for storage and there is going to be a skirting put on or other permanent barrier around the outside of the home I would think your good to go .
Neil