Oregon Administrative Rules › Chapter 437 - DEPARTMENT OF CONSUMER AND BUSINESS SERVICES, OREGON OCCUPATIONAL SAFETY AND HEALTH DIVISION › Division 3 - CONSTRUCTION › Section 437-003-0404 - Branch circuits

Current through Register Vol. 63, No. 7, July 1, 2024
(1) General. Use
			 ground fault circuit interrupters specified in (2) below or an assured
			 equipment grounding conductor program as in (3) below. These requirements are
			 in addition to any other requirements for equipment grounding
			 conductors.
(2) All 125-volt,
			 single-phase, 15-, 20-, and 30-ampere receptacles on construction sites, that
			 are for temporary power and are available for use by employees, must have
			 approved ground-fault circuit interrupters. GFI protection must be at the
			 outlet end of the circuit. Extension cords or other devices with listed
			 ground-fault circuit interrupter protection for personnel identified for
			 portable are acceptable.
(3)
			 Assured equipment grounding conductor program: Receptacles more than 125-volt,
			 single-phase, 30-amperes must have protection that complies with (2) above, or
			 an assured equipment grounding conductor program that complies with the
			 following:
(a) A written description of the
			 program, including the employer's specific procedures. The program must be at
			 the job site for inspection and copying by the Administrator and any affected
			 employee.
(b) The employer must
			 designate one or more competent persons (defined in § 1926.32(f)) to
			 implement the program.
(c) Before
			 each day's use, visually inspect each extension cord, or other device, and any
			 equipment connected by cord and plug, for external defects, such as deformed or
			 missing pins or insulation damage, and for signs of possible internal damage.
			 Extension cords, devices and receptacles not exposed to damage are exempt from
			 this inspection. Do not use damaged or defective equipment.
(d) Do these tests on all extension cords,
			 other devices and receptacles that are not part of the permanent wiring of the
			 building or structure, and cord- and plug-connected equipment required to be
			 grounded:
(A) Test all equipment grounding
			 conductors for continuity.
(B) Test
			 each receptacle or plug to assure the equipment grounding conductor is
			 connected to its proper terminal.
(e) Do all required tests:
(A) Before first use;
(B) Before first use after repair;
(C) Before use after any incident that
			 reasonably could cause damage (for example, when a cord set is run over);
			 and
(D) At intervals not longer
			 than 3 months. Inspect fixed extension cords, other devices and receptacles not
			 exposed to damage at least every 6 months.
(f) Record all tests required in this
			 paragraph. This test record must identify each receptacle, cord set, and cord-
			 and plug-connected equipment that passed the test and indicate the last date of
			 testing or the test interval. Keep this record by means of logs, color coding,
			 or other effective means. Keep the record until replaced by a newer record. The
			 record must be available on the job site for inspection by the Administrator
			 and any affected employee.