A ﬁre detection and alarm system can signiﬁcantly improve the safety of occupants in dwellings by operating automatically and alerting occupants, especially those asleep, to the outbreak of ﬁre. For these reasons, requirements for the provision of systems to provide early warning of ﬁre are incorporated into UK building regulations.
Whilst the particular requirements may vary in diﬀerent parts of the UK and will be dependent on a number of factors such as the nature of the occupants, and the size, construction and layout of the building.
Where a ﬁre detection and alarm system is installed in domestic premises it should be designed, installed and commissioned in accordance with BS 5839-6: 2013 Code of practice for the design installation, commissioning and maintenance of ﬁre detection and ﬁre alarm systems within domestic premises.
For the purpose of life protection, Table 1 of BS 5839-6 recommends that at least a Grade D system, Category LD2 standard is installed in all new or materially altered single-family dwellings of typical construction.1
As shown in Fig 1, the ﬁre system should be comprised of at least: