§ 5.93. Lighting.
(a) Open or naked lights—such as lanterns, stoves, torches and the like—are not allowed in rooms or portions of plants, except for necessary repairs under proper supervision. Watchmen or others using portable lights shall be supplied with vapor-proof lights.
(b) The rooms or portions of plants shall be lighted, if artificial light is needed, by means of an electric system installed in conduit or in lead encased cables with vapor-proof keyless lamps. Switches or fuses shall be located away from the rooms or buildings in a protected place. It is preferable that lights be projected by reflectors into rooms from the outside through properly located windows. The use of electric motors other than the sparkless induction type is forbidden.
Cross References This section cited in 34 Pa. Code § 5.166 (relating to electric apparatus and lighting); and 34 Pa. Code § 5.182 (relating to rooms containing ether vapor).
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