§ 29.143. Care of belts.
(a) Quarter twist. Quarter twist belts when installed without an idler may be used on drives running in one direction only. They run off a pulley when direction of motion is reversed.
(b) Inspection. Inspection should be made of belts, lacings and fasteners and such equipment kept in good repair.
(c) Static electricity. The hazard of static electricity from belts should be carefully considered when explosives, explosive dust, flammable vapors or flammable liquids exist. Static electricity may be removed from belts by means of metallic flexible tooth combs the same width as the belt. One comb should be placed within 10 inches of the line of contact where the belt leaves each pulley or flywheel. These combs should be in contact with and placed transversely to the belt and also be well grounded with No. 12 insulated copper wire. The teeth of the comb should point in the direction of the belt motion. Other effective methods may be used.
Cross References This section cited in 34 Pa. Code § 29.141 (relating to purpose).
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