McGraw-Hill's National Electrical Safety Code (NESC) Handbook
The IEEE publishes the National Electrical Safety Code (NESC) every five years. The NESC's purpose is the practical safeguarding of persons during the installation, operation or maintenance of electric supply and communication lines and associated equipment. The NESC contains the basic, minimum safety requirements for aboveground and underground live-wire power distribution. The NESC is not a design specification or an instruction manual. Its primary purpose is the safety of employees and the public.
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Introduction to the National Electrical Safety Code
Definitions of Special Terms
Rule Page 091 Scope
90 other sections not shown
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accepted good practice ACSR Additional Rules aerial lift ampacity ANSI apply circuit breaker climbing space communication cables communication lines Communications Employee conduit system connected construction covered crossarm deenergized direct-buried cable discussed in Rule distribution line effectively grounded electric supply station energized lines etc.l fault current flashover fuse Grade grounding conductor groundl guarded hazards horizontal clearance inspection installed insulated ladders largest final sag less lines and equipment lines or equipment live-line located manhole messenger metal minimum approach distance National Electrical Code NESC Table Number operating outlined in Fig Overhead Lines overload factors overvoltage pad-mounted paragraph Phase conductor Photo protection recloser Rules for Supply sag and tension secondary shown in Fig span specified Standard strength factors Subpart substation supply and communication supply cable supply conductors Supply Employees supporting structures switch tion transformer Underground Lines utility vertical clearance voltage volts wire