we were contracted to install a service on a modular home and put lights in the unfinished basmnt. service was installed and tested with a small generator for the purpose of checking smokes . long story short smokes didnt work crawled in attic found one box laying in insulation wires brought into the box stripped out but not made up with no wire nuts on any of the stripped ends. while the following may be acceptable i cant see it being any faster. all smokes were wired with 14/2 and the interconnect were wired in 18/2 stat wire. why not just use 14/3. i also have one side of the home being fed from 2 breakers havent been able to trace the tie in point for this down yet.the plugs and switches are aone piece assembly much like a cut in box with the wires installed in a self stripping type connection. the testing label says this was testyed with 1080 volts for 1 sec. what good does this do and who has final ispection authority over what has already been installed
Those houses have inspectors at the plant and your ahj will just be looking at your work (at least that is how it is in my area your ahj may look at the pre fab work but I doubt it.)
IMO Those houses are junk. The last one I did I doubled my bid in extras due to poor labeling on the splice points and missing wires etc. Be sure you are specfic in your bid on what you are doing and what is supposed to be done alredy so you dont screwed. Ps do a search on this web site this topic was discussed not long ago.
Eric
You must know if this is a HUD manufactured house or is it a true modular the label by the panel should say Manufactured under the authority of HUD
If it does and there are problems with the wiring (other than what you don't like) then you should have the home owner contact the manufacture to get a remedy. If this does not get any response then go to www.hud.com and look for the link for filings complaints, and HUD will go after them to have the problems fixed. HUD manufactured homes does not go by the NEC they have there own Federal code that has to be followed. I posted it on here awhile back and I should be able to find it for you, It's called 3280. I'll try to find it but it's too late to night.
Also the local AHJ's authority stops at the doorway of this home. only Appointed AHJ's that have been appointed by HUD can inspect these homes. This does not include the service or hookup to the inside panel. as this does fall under the local AHJ's rule.
And if this is a true modular then it will not be under HUD's rule then it does fall under the local AHJ's rule
After reading your post again, Have you had any experience with these type of homes before?
As they will have connection points that you have to look for and make connections per the manufactured instructions. they should have a booklet that will tell you where all these connections are and how they are to be made. and also sevice's can only be mounted to a manufactured home by the manufacture or via there instructions. You need to contact the manufacture as to whether or not the service can be mounted to the structure or not. Or you might be violating HUD codes and or the manufacture's warranty. This could cost you big time!
We mounted more than one service to the side of a prefab home, clearing this practice first with the manufacture as well as the local utility company who may have guidelines that the home has to fall under for "permanent foundation".
I also did some "subcontracting" work for a prefab manufacturer on the line and was pretty impressed by the electrical standards that they adhered to on their home wiring and the quality of the supplies that they used. But again, not all manufacturers are the same.