![header thumbnail](/images/publishers\iso_cover.gif)
ISO 21927-5:2018
Current
The latest, up-to-date edition.
![header thumbnail](/images/publishers\iso_cover.gif)
Smoke and heat control systems — Part 5: Powered smoke exhaust systems — Requirements and design
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
28-11-2018
This document applies to powered smoke exhaust systems in spaces with a large area and with a ceiling height of minimum 3 m, in which smoke protection is required. It includes tables and calculation methods for the design of clear layers in order to comply, inter alia, with the requirements of various protection objectives.
This document includes information and provisions concerning the requirements for powered smoke exhaust systems, their design and rules for their installation.
NOTE The requirements for testing the ventilators are dealt with in ISO 21927‑3. Other parts of the ISO 21927 series of standards deal with the power supply (ISO 21927‑10), control equipment (ISO 21927‑9) and smoke control ducts and smoke control dampers (ISO 21927‑7 and ISO 21927-8 respectively).
Design, as specified in this document, does not apply to:
— spaces with fixed gas extinguishing systems;
— storage facilities for hazardous materials;
— spaces in which there is a risk of explosions;
— corridors;
— stairwells.
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.