Construction: Subpart K, Electrical
29 CFR 1926.431: Maintenance of equipment
In short: Maintenance of electrical equipment on construction sites.
The employer shall ensure that all wiring components and utilization equipment in hazardous locations are maintained in a dust-tight, dust-ignition-proof, or explosion-proof condition, as appropriate. There shall be no loose or missing screws, gaskets, threaded connections, seals, or other impairments to a tight condition.
San Clemente · South OC to North County San Diego
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CSLB #354550 · C-10 Electrical · Licensed since 1978 · $25,000 contractor's bond