Fire Detection & Alarm Testing SWMS

Fire detection and alarm system testing under AS 1851-2012 involves routine servicing of smoke detectors, manual call points, Emergency Warning and Intercommunication Systems (EWIS), occupant warning sounder strobes, and verification of AS 1670.1 design compliance across commercial, retail, healthcare, and residential properties. Technicians work at height to access ceiling-mounted detectors, isolate live fire indicator panels, deliberately activate audible alarms above 100 dB(A), and use aerosol test agents that may contain hydrocarbon propellants. The work routinely meets the section 291 threshold for High Risk Construction Work because access to ceiling-mounted devices typically occurs above 2 metres from stepladders, platform ladders, or scissor lifts. WHS Regulation 2025 sections 291 and 299 make a Safe Work Method Statement mandatory before HRCW commences, and the SWMS must be developed in consultation with workers under section 47. This SWMS documents the hazards, hierarchy-of-control measures, and verification steps required to test fire systems without exposing technicians, building occupants, or emergency responders to uncontrolled risk.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.

1. 1Elimination — Schedule testing during planned shutdowns and remove redundant or end-of-life devices rather than retesting them, in accordance with AS 1851 Section 6 baseline data requirements.
2. 2Elimination — Eliminate working at height by using extendable test poles with detector heads up to 6 metres for ceilings below that height, removing the need for ladder access entirely.
3. 3Substitution — Substitute aerosol propellant test agents with non-flammable water-based smoke test fluid where compatible with detector type per AS 1851 Table 6.4.1.
4. 4Substitution — Substitute solo ladder work with elevating work platforms (scissor lift or boom lift) for ceilings above 3 metres, eliminating ladder fall risk per Code of Practice: Managing the Risk of Falls.
5. 5Engineering — Isolate fire indicator panel from mains and disconnect battery backup using locked isolation switch and apply personal danger tag per AS/NZS 4836 before opening terminal covers.
6. 6Engineering — Place building occupants and monitoring station in test mode via documented isolation procedure, preventing brigade response and suppression discharge during sounder activation.
7. 7Administrative — Issue pre-start briefing using this SWMS, occupant notification 48 hours prior, signed isolation permit, and two-person rule for any work above 2 metres or live panel access.
8. 8Administrative — Limit continuous EWIS testing exposure to 15 minute blocks with documented rotation, and verify system restoration using AS 1851 Form 6 sign-off before leaving site.
9. 9PPE — Wear Class 5 hearing protection (SLC80 ≥ 26 dB) during all audible device testing, in accordance with AS/NZS 1269.3 and the workplace exposure standard of 85 dB(A) over 8 hours.
10. 10PPE — Wear AS/NZS 1337.1 safety eyewear, AS/NZS 2210.3 safety footwear, cut-resistant gloves for ceiling tile handling, and P2 respirator when using aerosol test agents in confined ceiling cavities.

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

At the pre-start meeting for the six-monthly service of a 12-storey suburban office tower, the lead technician opens this SWMS on a tablet with the apprentice and the building's facility manager present. They confirm today's scope: 84 ceiling-mounted photoelectric detectors at 2.7 metres, two EWIS amplifier batteries due for replacement, and a full sounder activation across levels 3 and 4. Working through the hazard register, they identify fall risk as HIGH and select a podium step rather than a leaning ladder for the detector tests, ticking off the engineering control. The facility manager signs the occupant notification confirming tenants received 48-hour notice, and the technician phones the monitoring station to place the system in test mode, recording the reference number on the isolation permit. The apprentice fits Class 5 earmuffs before the level 3 sounder test and confirms the 15-minute rotation timer is set. Mid-task, a tenant unexpectedly enters the level 4 fire stair during sounder activation; the technician pauses the test, refers to the administrative control in the SWMS requiring exclusion zones, escorts the tenant out, and resumes only after the zone is clear. At completion, both workers verify the panel is returned to normal using AS 1851 Form 6, the monitoring station is taken out of test mode, and both sign the SWMS register confirming controls were applied throughout the shift.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• AS 1851 — Routine service of fire protection systems; AS 2118 — Sprinkler systems

Frequently asked questions