I am working on a job that is using the 2002 NEC code. I have calculated numerous cable tray overfills in trays designated for single conductor cables above 2001VAC. Some co-workers are telling me that I do not have to include the single conductor equipment grounds we are running in the tray fill calculations. I do not see anything in article 392 that would allow me to do that. Is it acceptable to not include the ground wire in the fill?
Equipment Ground in Cable Tray Fill
- Thread starter ClevEng
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I don't see anything that says you don't have to count the ground. But since it won't normally carry any current, or contirbute to heating, I don't see why you would have to include it.
I would tend to give existing installations the benefit of the doubt and assume some AHJ blessed it as installed.
I would tend to give existing installations the benefit of the doubt and assume some AHJ blessed it as installed.
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