For nearly 100 years, the National Electrical Safety Code (NESC) has offered practical guidance for safeguarding utility employees and the public in certain locations where electrical supply and communications lines are installed, operated and maintained. These locations include overhead and underground electrical supply lines, telephone or cable and TV lines, and signal and power installations for railroads. NESC, a safety standard set by the Institute of Electrical and Electronics Engineers (IEEE), also includes work rules for the construction, maintenance, and operation of electric supply and communication lines and associated equipment.
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