Or. Admin. R. 437-004-2870

Current through Register Vol. 63, No. 6, June 1, 2024

Section 437-004-2870 - Attachment Plugs and Receptacles

(1) Attachment plugs must be heavy enough to endure rough use and have a suitable cord grip to prevent strain on the terminal screws.

(2) Use only approved, grounding type attachment plugs.

(3) Use only approved concealed contact type receptacles for attachment plugs. They must extend ground continuity. They must allow removal of the plug without exposing live parts to contact.

(4) Polarized attachment plugs, receptacles and cord connectors must have proper continuity.

(5) Use only attachment plugs, receptacles and cord connectors that have the grounded (common) terminal conductor identified. If the terminal is not visible, the connection hole must be marked with the word "white."

(6) The terminal for the equipment grounding conductor (bare wire) must have:

(a) A green colored, not easily removable terminal screw with hexagonal head; or

(b) A green colored, hexagonal, not easily removable terminal nut; or

(c) A green colored pressure wire connector.

(d) If the terminal for the grounding conductor is not visible, mark the conductor entrance hole with the word "green" or otherwise identify it with the color green.

(e) A grounded conductor must not be attached to any terminal or lead to reverse the designated polarity.

(7) Where portable cords supply different voltages or types of current (A.C. or D.C.) receptacles and attachment plugs must not be interchangeable.

(8) Attachment plugs or other connectors supplying equipment at more than 300 volts must have skirts or otherwise confine arcs.

(9) Do not use a grounding terminal or grounding-type device on a receptacle, cord connector, or attachment plug for purposes other than grounding.

Or. Admin. R. 437-004-2870

OSHA 4-1998, f. 8-28-98, cert. ef. 10-1-98

Stat. Auth.: ORS 654.025(2) & ORS 656.726(3)

Stats. Implemented: ORS 654.001 - ORS 654.295