North Carolina General Statutes Chapter 95. Department of Labor and Labor Regulations § 95-229.6. Definitions

(1) “Covered equipment” or “covered items” means any mechanical equipment, hoisting equipment, antenna, or rigging;  any part of which is capable of vertical, lateral, or swinging motion that could cause any portion of the equipment or item to come closer than 10 feet to a high-voltage line during erection, construction, operation, or maintenance;  including, but not limited to, equipment such as cranes, derricks, power shovels, backhoes, dump trucks, drilling rigs, pile drivers, excavating equipment, hay-loaders, haystackers, combines, irrigation equipment, portable grain augers or elevators, and mechanical cotton pickers.  These terms also include items such as handheld tools, ladders, scaffolds, antennas, and outriggers, houses or other structures in transport, and gutters, siding, and other construction materials, the motion or manipulation of which could cause them to come closer than 10 feet to a high-voltage line.

(2) “High-voltage line” means all aboveground electrical conductors of voltage in excess of 600 volts measured between conductor and ground.

(3) “Person” means natural person, firm, business association, company, partnership, corporation, or other legal entity.

(4) “Person responsible for the work to be done” means the person performing or controlling the work that necessitates the precautionary safety measures required by this  Article, unless the person performing or controlling the work is under contract or agreement with a governmental entity, in which case “person responsible for the work to be done” means that governmental entity.

(5) “Warning sign” means a weather-resistant sign of not less than five inches by seven inches with at least two panels:  a signal panel and a message panel.  The signal panel shall contain the signal word “WARNING” in black lettering and a safety alert symbol consisting of a black triangle with an orange exclamation point, all on an orange background.  The message panel shall contain the following words, either in black letters on a white background or white letters on a black background:  “UNLAWFUL TO OPERATE THIS EQUIPMENT WITHIN TEN FEET OF OVERHEAD HIGH-VOLTAGE LINES -- Contact with power lines can result in death or serious burns.”  A symbol or pictorial panel may also be added.  Such warning sign language, lettering, style, colors, size, and format shall meet the requirements of the American National Standard ANSI Z535.4-1991, Product Safety Signs and Labels, or its successor or such equally effective standard as may be approved for use by the Commissioner of Labor.  In the event of a conflict with regard to the appearance or content of the warning sign, the standard approved by the Commissioner of Labor shall take precedence over any description or standard set out in this subdivision.