Recently upgraded a large manufacturing facilities lighting from 400W HID to high bay flourescents with integral occupancy sensors. Everything went well and the areas looked great upon completion. Project will pay for itself in 2 years with energy savings since old lights burned 24/7/365. There were some grumblings from the union but we worked with supervisors and operators to move and/or add fixtures as needed to meet their concerns. Yesterday however an email from the local union safety rep stated that we are in violation of the 2011 NEC 110.26(E). Their arguement is that the areas must have manual overide controls since they are served by bus duct, there are local panelboards, and the manufacturing machines have control panels which periodically require maintenance. This section of the code was changed in 2011 as before it only required the manual overides in electrical equipment rooms. Since the 2011 code has not been adopted by our state I tried the card that we were working with the 2008 NEC, needless to say this argument didn't win. Anyone have any opinions on this? Is an occupancy sensor considered automatic controls? It does require movement of a person to activate the light. I think the main reason for the complaint is that the fixtures were installed by an outside contracter and not the UAW skilled trades.
Thanks for your input.