CWA 15902-1:2008

This document applies to machinery and machinery installations used in places of assembly and in staging and pro-duction facilities for events and theatrical productions (stage machinery, for short). Such facilities include: theatres, multi-purpose halls, exhibition halls; film, television and radio studios; concert halls, schools, exhibition halls; bars, discotheques, open-air stages and other rooms for shows and events.The document applies to machinery and machine installations with guided or unguided load bearing and load carrying equipment.For the purposes of this document, machinery installations are all technical installations and equipment used for op-erations in stage and production facilities in the entertainment industry. Such installations are used to lift, lower, sus-pend and carry loads (e.g. scenery, traverse systems, or lighting, film/video and sound equipment). They may also be used to move persons, and persons may stand under such equipment while the loads are at rest or in motion.This machinery includes Controls, electrical and electronic control systems, electrical and electronic equipment, hy-draulic and pneumatic power supplies.Stages include staging facilities and production areas in theatres, multipurpose halls, studios, production facilities for film, television or radio, concert halls, congress centres, schools, exhibition centres, trade-fair centres, museums, discotheques, amusement parks, sports facilities and open-air-theatres."Events" are, for example, concerts, shows, congresses, exhibitions, presentations, demonstrations, film or television recordings, etc.This workshop considers lifting and any movement equipment for stages and production areas within the entertain-ment industry, and temporary installations using trusses or truss constructions which may include ground support systems or towers at events.