Youíve got to observe a few rules on location. The first rule is the equipment must be 14 feet above areas accessible to vehicles unless protected from physical damage [600.9(A)]. An example of such protection is a bollard. Itís significant enough to provide reasonable assurance someoneís not going to drive their car over the equipment.
If youíre installing neon tubing, you have to make sure itís not readily accessible to pedestrians (that is, they would have to go out of their way to get to it) unless itís protected from damage [600.9(B)]. If you canít move the tubing out of harmís way then install a suitable guard or barrier that will keep hands out.
Signs and lighting generate heat, so provide at least a couple inches of space between this equipment and the structureís wood siding (or other combustible) [600.9(C)]
If the equipment is going into a wet location (see Article 100 definition, which encompasses more than most people realize), use a listed watertight type if at all possible. If itís not possible, then the sign or outline lighting must be weatherproof 600.9(D)]. In addition, it must have drain holes meeting these requirements:
- No larger than 1/2 inch, no smaller than 1/4 inch.
- Existing in every low point or isolated section of the equipment.
- Positioned such that there will be no external obstructions.