(A) All primary and secondary URD lines, exclusive of service wires, shall be marked with a sign at least 12 inches by 18 inches in size and worded as follows:
“Before digging or driving post call or contact . Telephone during working hours ,/after hours . Company name .”
(B) Such signs shall be of metal, with black lettering on a yellow background and shall be affixed to a post which is a minimum of 48 inches long. The sign shall be at least 32 inches above the ground level after installation and shall not be further than 250 feet apart.
(C) Adhesive signs shall be affixed to all secondary pedestals, all transformers, switch gears and the like located at ground level stating “Danger High Voltage”. Letters should be red on white background.