Mobile Home Feeder Assembly

[gserve]

The other day I saw a mobile home wired with a 4/0 4/0 2/0-4 al feeder assembly. I looked it up on the net and sure enough they sell this cable assembly in this and in 4/0 4/0 4/0 2/0. They were both rated at 200A. I thought you needed a full size neutral and grounding conductor for a mobile home? What gives? Is there ever a reason that your allowed to downsize a neutral and grounding conductor? If there isn't why do they make this cable combination? Please explain with code references . Thanks

 

[jwelectric]

You need to read 220.61 Feeder or Service Neutral Load

 

[kbsparky]

Also read section 250.24(C)(1) for limitations on the neutral conductor.

Table 250.122 shows the required equipment grounding conductor sizing.

 

[chicar]

I don't see anything in art. 550 mobile homes that would override art. 215 feeders or art.230 service.

 

[electricman2]

Pretty common around here. You can buy it buy the foot at HD. 8)