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COMMONWEALTH OF PENNSYLVANIA

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34 Pa. Code § 39.151. Accessible and indicating.

FUSES AND OTHER CUT-OUTS, SWITCHES, AND CONTROLLERS


§ 39.151. Accessible and indicating.

 Switches, automatic cut-outs, starting rheostats and other control devices shall be readily accessible to authorized persons. They shall be arranged or marked so as to identify the equipment controlled by them, and, except fuses, shall indicate whether they are open or closed. They shall be installed so as to minimize the danger of accidental operation, and where practicable so that gravity cannot close them; such switches that close by gravity shall be provided with a proper latch or stop block to prevent accidental closing. If practicable, the blades of knife switches should be dead when the switches are open.


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