Or. Admin. R. 437-004-2950

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

Section 437-004-2950 - Switches and Circuit Breakers

(1) There must be at least 3 feet of clear space in front of switch centers or panels. Passageways to switch centers or panels must be unobstructed.

(2) There must be enclosures or screens around live parts of electrical switchboards and panelboards.

(3) Each disconnecting means for motors and appliances, and each service feeder or branch circuit at the point where it originates, must have legible markings to indicate their purpose unless the purpose is evident.

(4) Locate or shield disconnecting means to avoid injury to employees. Do not use open knife switches.

(5) Securely mount boxes for disconnecting means and keep their covers in place.

(6) Boxes and disconnecting means in damp or wet locations must be waterproof.

(7) There must be sufficient light for all indoor working spaces around service equipment, switchboards, panelboards, and motor control centers.

(8) The minimum headroom of working spaces around service equipment, switchboards, panelboards, or motor control centers must be 6 feet 3 inches.

Or. Admin. R. 437-004-2950

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