Because of the frequent power outages and earthquakes on island: (a) each elevator car shall be equipped with retainer plates and counterweight guide shoes to prevent the car or counterweight from leaving the rail; and (b) each elevator car shall be equipped with a detection device which will stop the elevator car at the nearest floor if the counterweight leaves its rails. SOURCE: Added as § 5105 of the UBC by P.L. 14-112:10.
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ARTICLE 3 BOILER INSTALLATION