A guide to fire detection and fire alarm zone plans
Key elements of a compliant zone plan
To maintain compliance and ensure usability, clarity and efficiency, a fire alarm zone plan should include the
following elements:
- It should accurately represent the building layout – The plan should be an up-to-date depiction of
the protected premises, including key features such as stairwells, circulation spaces, fire doors, and
escape routes. - It should show clearly the defined detection zones – Each fire alarm detection zone should be
clearly marked and labelled with a zone number or designation by way of colour coding or hatching
to further improve clarity, with boundaries that correspond to the layout of the building. - It should be orientated to match the viewer’s perspective (correctly orientated) – The plan must be
positioned and drawn in a way that reflects the user’s actual standing position relative to the
building layout, as viewed from the CIE location. When the zone plan is on the wall and the CIE is
shown in its accurate location, the building layout should be rotated to show the CIE on the top
horizontal wall. Zone Chart This way, if an individual is stood facing the CIE, and a door is shown on the left-hand side on the zone plan, it will actually be on their left-hand side. - It should be permanently displayed – The zone plan should be securely affixed to the building and
located on or adjacent to the CIE and any repeat panels2 where necessary3 to ensure accessibility. - It should have a clear and simple format – Clarity is crucial; overly complex or cluttered plans reduce
effectiveness and may result in a delayed response from the viewer. Often, zone plans do include
additional information such as locations of fire detection and fire alarm devices and firefighting
equipment. Whilst this practice is not precluded, it should be ensured that the inclusion of additional
information such as this does not detract attention away from the intended purpose of the zone
plan.