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Subchapter 20. Tunnel Safety Orders
Article 16. Mechanical Tunneling Methods, Machinery and Equipment

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§8460. Electrical Equipment and Lighting.

(a) Automatic emergency lighting shall be provided in the heading area.

(b) Electric equipment and wiring shall meet standards equivalent to the requirements of Title 8, Electrical Safety Orders.

(c) Electric cords and cables shall be located to minimize mechanical damage.

(d) Insulated gloves or tongs shall be used to handle energized trailing electric power cables. If insulated gloves are used they shall be tested every 30 days for leakage.

(e) Electrical installations shall be used only for lighting fixtures in underground areas where oil, grease or diesel fuel are stored.

(f) Lighting fixtures in storage areas, or within 25 feet of underground areas where oil, grease, or diesel fuels are stored, shall be approved for Class I, Division 2 locations.

NOTE: Authority cited: Sections 142.3 and 7997, Labor Code. Reference: Sections 142.3 and 7997, Labor Code.


1. Amendment of subsection (b), new subsections (e)-(f) and new Note filed 3-5-96; operative 4-4-96 (Register 96, No. 10).

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