SURFACE-RACEWAY WIRING


Please sign in to view the rest of this entry.

SURFACE-RACEWAY WIRING
SURFACE-RACEWAY WIRING198. Wiring in surface metal raceway can be used for exposed work for branch-circuit or feeder conductors. It may be installed in dry locations. It shall not be used (1) where concealed except under raised floors of information technology equipment; (2) when subject to severe physical damage unless approved for the purpose; (3) when the voltage is 300 V or more between conductors unless the metal has a thickness of not less than 1.02 mm (0.040 in.); (4) when subject to corrosive vapors; (5) in hoistways; or (6) in any hazardous location, except as expressly permitted in those specialized articles. The number of conductors installed in any raceway shall be no greater than the number for which the raceway is designed. Metal raceway must be conti…
Citation
Terrell Croft; Frederic P. Hartwell; Wilford I. Summers: American Electricians' Handbook, Sixteenth Edition. SURFACE-RACEWAY WIRING, Chapter (McGraw-Hill Professional, 2013), AccessEngineering Export