Installation Guidelines for Expansion and Expansion/Deflection Fittings

Abstract

This guideline provides information on the proper application and installation of expansion and expansion/deflection fittings intended for use in hazardous and non-hazardous locations in accordance with the National Electrical Code® (NEC); the Canadian Electrical Code (CE Code), Part I; the International Building Code; and the National Building Code of Canada.

This guideline cover expansion and expansion/deflection fittings for nonflexible metallic and nonmetallic conduit and tubing, including the following:

a.

Electrical metallic tubing: type EMT

b.

Intermediate metal conduit: type IMC

c.

Reinforced thermosetting resin conduit: type RTRC

d.

Rigid metal conduit: type RMC

e.

Rigid polyvinyl chloride conduit: type PVC