Fire Hazards Generally, the hoistway for any lift extends over the full height of a building and interconnects the floors. Accordingly, such a lift should be used only by specially trained personnel employed by the building owner or a designee. A rider is at risk of being carried over the top, being unable to make an emergency stop, striking his or her head or shoulders on the edge of a floor opening, jumping on or off after the step has passed the floor level or being unable to reach the landing because of power failure or the belt’s stopping. A belt lift consists of steps on a moving vertical belt. One common type of accident results when workers travel on a platform hoist designed only for carrying goods, which do not have side walls or gates to keep the workers from striking a part of the scaffolding or from falling off the platform during the journey. The ramp consists of metal pallets, similar to the step treads of escalators but longer, or rubber belt. When the conveyors are horizontal, baby carriages, pushcarts and wheelchairs, luggage and food trolleys can be carried without risk, but on inclined conveyors these vehicles, if rather heavy, should be used only if they lock into place automatically.
Passenger conveyors are used to transport a great number of people in airports from the main station to the gates and back and in department stores and supermarkets. Moving Walkways (Passenger Conveyors) A passenger conveyor, or power-driven continuous moving walkway, may be used for the conveyance of passengers between two points at the same or at different levels. Before an escalator is put into service, it should be examined by a person or organization approved by the public authorities subsequently periodic inspections at given intervals are needed. A technical dossier should be available listing the main calculation data of the supporting structure, steps, step driving components, general data, layout drawings, schematic wiring diagrams and instructions. Maintenance and inspection Maintenance and inspection along the lines described above for lifts are usually required by authorities.
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