In order to provide satisfactory output by obstruction lights, the rated voltage of the lamp used should, in each case, correspond to or be within 3 percent higher than the average voltage across the lamp during the normal hours of operation.
[Statutory Authority: Chapter 47.68
RCW. WSR 96-17-018 (Order 164), recodified as § 468-240-145, filed 8/13/96, effective 9/13/96; O.M.&L. standards (part), filed 9/13/61.]