In outdoor advertising display
signs, the allowable working stresses shall conform to the
requirements of Chapter 16
. The working stresses of wire
rope and its fastenings shall not exceed 25 percent of the ultimate
of the rope or fasteners.
- The allowable working stresses for steel and wood
shall be in accordance with the provisions of Chapters
22 and 23.
- The working strength of chains, cables, guys or steel
rods shall not exceed one-fifth of the ultimate
strength of such chains, cables, guys or steel.