I have been searching the NEC for the answer to the following:
The company that I am currently working for builds mobile communications suites. We use LEX Products connectors (camlock and bates connectors) for power and grounding. We purchase different equipment (radios, routers, etc) and mount it in Hardig cases. So is it necessary to ground the rack inside the case to an external grounding braid, block, etc. or does the ground in the equipment plug take care of it. I can't find anything in the NEC that addresses this unless I'm overlooking it.
Any help or NEC reference would be greatly appreciated.
[This message has been edited by sambroak (edited 02-26-2004).]
I may not have made it completely clear in my original post, the case itself is plastic, and the frame on the inside is aluminum supported in the middle of the case with rubber "shocks". All equipment that we use has a 3 prong plug so the equipment is grounded, I was just trying to get some facts on whether or not the mounting frame inside the plastic case needed to have a ground attached to it. There is no metal on the ouside of the case that contacts the frame in any way. In my opinion there is no need for grounding the frame inside the case, but I was trying to find hard facts in the NEC, but have still had no luck.