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See Chinese contents: WH/T 28-2007 WH/T 28-2007: Mechanical equipment on stages-upper stage-safety requirements
This Standard is the basic safety technical specification for mechanical equipment on upper stages. This Standard applies to the mechanical equipment on upper stages installed in various performance venues including theater, multi-function hall, exhibition hall, TV studio, concert hall, auditorium, gymnasium, bar, discotheque and amphitheater, etc. In addition to the stage, the auditorium is also a performance venue so this Standard is also applicable.
