What is BS 2655-4 – General requirements for escalators and passenger conveyors about?
BS 2655 is a series of British Standards that discusses specifications for lifts, escalators, passenger conveyors and paternosters. The main objective of the BS 2655 series is to provide manufacturers with best industry requirements to ensure safe and reliable use and operation of products.
BS 2655-4 is the fourth part of the BS 2655 series that applies to the engineering and safety requirements for escalators and passenger conveyors.
The requirements for escalators are based on the steps being connected and driven by means of chains. Other types of construction may be adopted provided that the same standard of safety is achieved throughout. The requirements for passenger conveyors are based on the use of two distinct types of treadway:
- Platforms interconnected by chains or other suitable means, and provided with grooves on the tread surface in the direction of travel (these conforming to the specified requirements for escalators).
- Continuous endless belts with longitudinal grooves formed on the tread surface.
Such aspects as limits of speed, width and angle of inclination are covered, together with methods of assessing contract loading. Also specified are requirements for guarding, handrails, steps or belts, driving machinery and safety devices.
Diagrams of a typical cross-section and details of comb teeth and tread grooves are shown, containing limiting dimensions where applicable.
The subject of potential hazards to users is discussed in BS 2655-4.
Who is BS 2655-4 - General requirements for escalators and passenger conveyors for?
BS 2655-4 on General requirements for escalators and passenger conveyors is relevant to:
- Manufacturers of escalators and passenger conveyors
- Manufacturers and suppliers of parts, components, control equipment used in escalators and passenger conveyors
- Product designers
- Mechanical engineers
- Quality control bodies
Why should you use BS 2655-4 - General requirements for escalators and passenger conveyors?
Lifts, escalators, passenger conveyors and paternosters are heavy units and have specific requirements for installation and safe use of public.
BS 2655-4 walks you through best industry design requirement for parts, controls and equipment of escalators and passenger conveyors.
Thus, complying with BS 2655-4 can ensure smooth working and safe use of escalators and passenger conveyors. As a result, incidents of product failures, accidents arising from shoe-trapping, and damage to the product and/or equipment itself can be avoided when in use.