§ 7.285. Control apparatus.
(a) Types. Permissible types of control for freight elevators are as follows:
(1) New installations. The controlling mechanism of all new freight elevators shall be restricted to such types as car switch, automatic, double-button control, wheel or lever (hydraulic).
(2) Existing installations. Existing power-driven elevators operated by rope or cables shall have manually-operated landing doors or gates equipped with approved electric interlocks. In such instances, the requirements of subsection (b) of this section and § § 7.283(b) and 7.296(d) (relating to safety requirements; belted and silent chain drive elevators). In hydraulic elevators that are operated by hand-cable control, the gates shall be made manually closeable and equipped with approved type interlocks.
(b) Electric control switches. Electric car control switches shall be so designed and installed in new cars that, upon removal of the hand of the operator, the switch will automatically return to the ‘‘off’’ position. Low voltage and no voltage protection shall be provided on all new electric elevators so that the elevator car will not restart upon the restoration of voltage or service until the operator has first moved the controller to the ‘‘off’’ position. Low voltage and no voltage protection shall be provided for existing hand rope control elevators having electric brakes, so that the elevator car will not restart upon the restoration of voltage or service until the operator has first moved the control to the ‘‘off’’ position.
Cross References This section cited in 34 Pa. Code § 7.283 (relating to safety requirements); 34 Pa. Code § 7.291 (relating to general); and 34 Pa. Code § 7.295 (relating to hydraulic freight elevators).
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