BS 9251-2021 Fire sprinkler systems for domestic and residential occupancies一- Code of practice.
4 Preliminary work and consultation
4.1 Initial considerations
Before undertaking the design ola residential sprinkler system for a specific property, the following factors, as a minimum, should be evaluated, obtaining specialist advice where necessary:
a) the type of occupancy of the property (see 4.);
b) the water supply requirements and availability; and
c) any additional system enhancements required (see 4.Z.3).
NOTE I Seealso422
NOTE 2 In some buildings or parts of buildings. a higher level of protection might be required than that provided in this British Standard (see also 42.3 and £5).
NOTE 3 In buildings where (here Is a mix of residential, non-residential and commercial use (e.g. where flats are above shops; car parks, bin stores, offices and retail units), iris generally appropriate to protect the residential parts using this British Standard and the non ‘residential parts using BS EN 12845, See also £5 and 5.6k
COMMENTARY ON 4.2
Some premises might have multiple authorities having jurisdiction who might be concerned with life
safety, property protection, business continuity, heritage preservation and environmental protection.
Some authorities having jurisdiction might impose additional requirements beyond those of this
The client (and/or their representatives) should consult with all stakeholders regarding the requirements (specification) of the sprinkler system for new sprinkler systems and extensions to existing sprinkler systems. The consultation should include any relevant authority having jurisdiction (Allis) or others who might have a direct interest in the installation, including:
a) water undertaker or licensed water supplier;
NOTE I See Guidelines for the supply of water to automatic fire sprinkler systems ,.LLj.
b) fire authority;
c) licensing authority;
d) building control body;
e) conservation regulators;
1) insurer(s) of the building and its contents;
g) sprinkler system designer; and
h) client, and their representatives, e.g. consultant(s), architect, fire engineer, surveyor, building owner, building management, and/or the responsible person for the building.
NOTE 2 U Is the responsibility of the client to provide the sprinkler system designer and installer with a specification (see 422) for them to design and install, including whether any enhancements (see 42.3) to the system are applicable.
NOTE 3 It is the responsibility of the sprinkler system designer to ensure that the specification and/or fire strategy element for the sprinkler system (see 42.2) is appropriate for the building and its occupancy.BS 9251 pdf download.