标准编号：ISO 21927-5:2018
中文名称：烟雾和热控制系统 第5部分：动力排烟系统 要求和设计
英文名称：Smoke and heat control systems — Part 5: Powered smoke exhaust systems — Requirements and design
发布日期：2018-11
标准范围
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.
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