NM under mobile/manufactured home

[elecmen]

Is this a violation of 550.15(H) ? See attached Pics.

 

[electricguy61]

In California, yes.

 

[ceb58]

Yes

(H) Under-Chassis Wiring (Exposed to Weather).​

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Whereoutdoor 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 intermediatemetal conduit, except as provided in (1) or (2). Theconductors shall be suitable for wet locations.(1) Where closely routed against frames and equipmentenclosures, reinforced thermosetting resin conduit(RTRC) listed for aboveground use, Type MI cable,electrical metallic tubing, or rigid polyvinyl chlorideconduit (PVC) shall be permitted.(2) Where extending vertically from a direct-burial depthof at least 457 mm (18 in.) below grade and terminatedto a factory-installed conduit or enclosure, Schedule 80​

PVC or RTRC listed for exposure to physical damage.

 

[hurk27]

CFR 24 Part 3280.800 which is enforced by HUD and also supersedes the NEC is a little less restrictive but pretty much has the same wording:

3280.808(k) When outdoor or under-chassis line-voltage wiring is exposed to moisture or physical damage, it shall be protected by rigid metal conduit. The conductors shall be suitable for wet locations. Electrical metallic tubing may be used when closely routed against frames, and equipment enclosures.

These codes can be found here: http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&tpl=/ecfrbrowse/Title24/24cfr3280_main_02.tpl

Start with 3280.800 (I.E. Scroll down to .800) the above is from 3280.808 Wiring methods and materials.