Safety rules for the installation and maintenance of electric supply and communication lines, comprising part 2, the Definitions and the grounding rules of the 6th ed. of the National electrical safety code
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Scope of the rules
Rules for the installation and maintenance of electric
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adjacent American Standards Association apply buckarm carrying clearance climbing space communication cables communication circuits communication conductors communication lines compression member conductor fastenings conductors supported conflict contact conductor copper crossing span current-carrying dead-ends ductors ducts electric electrodes equipment Exception feet grade of construction ground connections grounding conductor guarded horizontal installed jointly used poles lateral conductors lightning arresters line conductors loading district loading specified located longitudinal strength manholes material Open or cable Open supply overhead pins pipe Poles and Towers—Continued poles or towers practicable protection required by rule selected yellow Separation Between Conductors Space on Jointly span length span wires specified in rule strain insulator suitable supply cables supply circuits supply conductors supply lines supply-line supporting structures tion transverse loading transverse strength trolley trolley pole trolley-contact conductors ultimate strength Vertical and Lateral Vertical Communication Vertical Separation volts or less volts to ground withstand wood poles