I imagine he is intrested in 700.12(E) or (F) depending on code cycle.
But I don't know the answer to his question, I suspect he is correct but am not sure.
(F) Unit Equipment.
(1) Components of Unit Equipment. Individual unit
equipment for emergency illumination shall consist of the
following:
(1) A rechargeable battery
(2) A battery charging means
(3) Provisions for one or more lamps mounted on the
equipment, or shall be permitted to have terminals for
remote lamps, or both
(4) A relaying device arranged to energize the lamps automatically
upon failure of the supply to the unit
equipment
BTW- it is 700.12(F).
I think of a wall pack as not having battery backup up but if it did would it not be considered unit equipment?
3) Provisions for one or more lamps mounted on the
equipment, or shall be permitted to have terminals for
remote lamps, or both
Does a flourescent troffer emergency light have provisions for remote lamps?
I have not seen one with remote capabilities but that is permitted not required.
The question is for the application of NEC 2011 700.12(F) exception #1 allowing for a separate circuit for unit equipment.
It is allowed but only if there are 3 or more circuits serving the area and it cannot be interrupted by walls. In other words one big room.
If not they must be on the lighting circuit serving the area.
Although allowed, would it be considered bad design to have emergency lighting on a separate circuit than adjacent general lighting? If the general lighting circuits drop but the emergency lighting circuit does not, emergency lights won't trip on.
The question is for the application of NEC 2011 700.12(F) exception #1 allowing for a separate circuit for unit equipment.
Although allowed, would it be considered bad design to have emergency lighting on a separate circuit than adjacent general lighting? If the general lighting circuits drop but the emergency lighting circuit does not, emergency lights won't trip on.