Smoke and heat control systems - Specification for power output devices Ingestion-build-201039 in a system operating under

in a system operating under total pressures greater than or equal to atmospheric pressure

Terms and Definitions – additional terms

vessels and bunkers

– prescribe test methods

and equipment that are carried out during the operation and maintenance phase

Smoke and heat control systems - Specification for power output devices Ingestion-build-201039 in a system operating under1 Scope This part of ISO 21927 specifies requirements and gives test methods for primary and secondary electrical and pneumatic power output devices, designed for use in smoke and heat control systems in buildings. NOTE A summary of functions is given in Annex A.