ANSI/NEMA OS 1:2013(R2020)
Current
The latest, up-to-date edition.
Sheet-Steel Outlet Boxes, Device Boxes, Covers and Box Supports
Hardcopy , PDF
English
01-01-2020
Covers general-purpose metal outlet boxes, device boxes, covers and supports widely used by the consumer. Facilitates the pulling of wires to provide a means of mounting and protecting wiring devices and to provide a connection for rigid conduit, electrical metallic tubing, armored cable, metal-clad cable, nonmetallic sheathed cable, flexible metallic conduit and knob-and-tube wiring systems.
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