Feeder protection under manufactered home

[inspector 102]

What section of the NEC requires the feeders to be protected underneath a manufactered home. Can't find in 550 or would 300.37 apply. Currently have four thhn laying on the ground under the unit. Can't find proper section to refuse. Help needed, thanks

 

[charlie b]

300.37 would not apply, since it is part of a "over 600 volt" article. However, I think you would use article 300.3(A) to declare this installation a violation. Nowhere in chapter 3 does it say that single conductors lying on the ground is an acceptable wiring method, and 300.3(A) says you can only use the methods that do appear in chapter 3.

 

[jxofaltrds]

550.10(I)(2)

Implies that a raceway is needed.

550.33(B)(2) takes you to article 230
230.32 takes you to 300.5

I think that you find something there.

 

[dicklaxt]

I can't imagine this being acceptable,,,,,what is the total physical scenario ie: is it a underground installation until it gets below the home or maybe from a rack mounted disconnect close to the home and then just slack looped down to grade or maybe a manufacterer's supply cord to a WP power receptacle.I don't know that the answers to any of the above would help in the search for the answer,just curious.
dick