Approximately 50% of occupational fatalities from electrical hazards result from contact with overhead powerlines.1 The National Electrical Safety Code® (NESC®) provides installation requirements intended to reduce probability of unintentional contact with overhead lines. It also provides work rules to protect utility workers during construction, operations and maintenance of transmission and distribution lines.
The purpose of the NESC® is the practical safeguarding of persons during the installation, operation, or maintenance of electrical supply and communication lines, equipment, and associated work practices employed by a public or private electric supply, communications, railway, or similar utility in the exercise of its function as a utility. The NESC® includes installation requirements to protect the public from contact with hazardous voltages and rules to protect utility workers in the construction, maintenance, and operation of electric supply and communication lines and equipment.
1Cawley, J.C., and Homce, G.T., “Trends in Electrical Injury in the US 1992-2002,” IEEE Transactions on Industry Application, Volume: 44, July August 2008, pp 962-972.
NESC® and National Electric Safety Code® are registered trademarks of the National Electric Safety Code®.