Branch-Circuit Feeder and Service Calculations, Part XIV

摘要

220.43 Show-Window and Track Lighting. The purpose of the National Electrical Code (NEC) is the practical safeguarding of people and property from hazards arising from the use of electricity [90.1(A)]. The NEC is divided into an introduction, nine chapters and annexes. Provisions in the introduction (Article 90) include Purpose, Scope, Code Arrangement, Enforcement, Rules (Mandatory and Permissive), Explanatory Material, Formal Interpretations, Examination of Equipment for Safety, Wiring Planning, and Units of Measurement.