This CSA Standard is a common Standard with UL Standard 5A. 1 Scope 1.1 These requirements cover nonmetallic raceways and fittings. These products are for use as surface
wiring systems in accordance with the National Electrical Code® (NEC) and Canadian Electrical Code
(CEC), Part I. 1.2 Raceways that are all nonmetallic and of any thickness are intended to enclose circuits operating at
potentials not exceeding 600 V between conductors. 1.3 Nonmetallic raceways with metal covers are intended to enclose circuits operating at potentials in
accordance with Table 1 or Table 1A. 1.4 These requirements do not cover surface metal raceways, cable trays, or wireways.