In the areas of NJ that I am familiar with: 18"; 12", "as close as possible"; 3'; and "none". ie: into the back of the panel or main disc at the point of entry. It is a decision by the local AHJ; it's best to get that "decision" prior to the install if you are not familiar with the locale. The other alternative is concrete/brick encasement of 2" on all sides.
Being "around for a while" fortunately I know most of the areas, until a "fill-in" inspector shows up.
Your interpertation is the same as I look at it. John
[This message has been edited by HotLine1 (edited 11-19-2002).]
#82440 - 12/13/0210:55 AMRe: Do you have an opinion?
I agree with John, I have seen a lot of different distances on the inside of the house where the main service is located. The AHJ will have the final word on it. If I was inspecting the job, I would want it as close as possible, as safe as possible or encased in concrete. I have seen where a cable would drop from the ceiling down 4 feet, but it was all above 6 foot high so that you couldn't reach the service cable. I have also made guys install pipe in concrete when they ran a service inside the building because the pipe was subject to physical damage. It is a hard call to make. Get the AHJ out there before you do the job, and I think everyone will be happier.