Overview
ISO 21927-10:2011 - "Smoke and heat control systems - Part 10: Specification for power output devices" defines requirements and test methods for primary and secondary electrical and pneumatic power output devices used in smoke and heat control systems (SHCS). The standard applies to devices that supply and control power for smoke and heat exhaust ventilators (SHEVS) and associated actuators, and it provides a summary of required functions, performance verification and conformity procedures.
Key topics and technical requirements
- Scope and definitions: clarification of terms, abbreviations and the intended application within SHCS.
- Electrical requirements: general design, battery systems, generator sets, charger and secondary power source testing.
- Pneumatic requirements: compressors, air receivers, multi‑use and single‑use gas bottles, and replenishing methods.
- Functional requirements: power supply behaviors from primary and secondary sources, fault recognition and indication, and operational continuity.
- Materials, design and manufacture: mechanical and electrical construction requirements to ensure reliability under fire‑related conditions.
- Classification and testing: type testing, factory production control, and selection of tests for conformity assessment.
- Environmental and durability tests: cold, dry heat, damp heat (operational and endurance), impact, vibration, salt spray and sulphur dioxide (SO) corrosion tests.
- Protection and EMC: tests for protection against water and solid foreign objects and electromagnetic compatibility (EMC) immunity testing (operational).
- Documentation and marking: user and design documentation requirements, and marking (including requirements specific to gas bottles).
Practical applications - who uses ISO 21927-10
- Manufacturers of electrical and pneumatic power output devices for SHEVS, to design and certify products that meet internationally recognized performance and safety criteria.
- Test laboratories and certification bodies performing type testing, environmental conditioning and EMC immunity tests.
- Fire safety engineers and system designers specifying power solutions (battery backup, generator integration, pneumatic supplies) for smoke and heat control systems in buildings.
- Installers, commissioning teams and facility managers responsible for implementing, maintaining and documenting SHCS power systems to ensure reliable operation during fire events.
- Regulatory authorities and building code officials referencing standardized requirements for conformity assessment and product acceptance.
Related standards
ISO 21927 is a multipart series for smoke and heat control systems. Relevant parts include:
- ISO 21927-1 - Specification for smoke barriers
- ISO 21927-2 - Specification for natural smoke and heat exhaust ventilators
- ISO 21927-3 - Specification for powered smoke and heat exhaust ventilators
- ISO 21927-9 - Specification for control equipment
ISO 21927-10 is essential when specifying or assessing reliable power output devices for SHEVS, ensuring they perform under environmental stress and during emergency operation while providing the required documentation and tests for conformity.