Method Statement: Final Testing and Commissioning of Fire Alarm System – Method Statement

Scope of Works

• Final Testing and Commissioning (T&C) of the addressable fire detection and alarm system (FDAS), including: control and indicating equipment (CIE), field devices (smoke, heat, multi-sensor detectors, manual call points, interfaces, modules), notification appliances (sounders, beacons, speakers), fire telephones/warden intercoms (if applicable), graphic workstation, networked/peer-to-peer panels, and all integrated interfaces (HVAC shutdown/smoke control, dampers, lifts/elevators recall, access control door release, fire pump and sprinkler monitoring, gas suppression, generators, BMS/monitoring station).
• 100% device functional testing and labelling verification, complete Cause-and-Effect (C&E) testing, panel functionality, fault/alarm routing, audibility, and (if applicable) voice alarm intelligibility.
• Fault simulation (open, short, ground/earth) and isolator operation checks.
• Power supply verification including battery sizing, charger operation, and autonomy checks.
• Witnessing by Consultant/Authority (e.g., Civil Defense/Fire Marshal) as required by contract.
• Snag listing, rectification, retesting, issuance of test certificates, training of operations staff, submission of as-built/O&M and handover records.
• Exclusions: Installation works, pre-termination IR testing before device connection (performed during pre-commissioning), third-party OEM start-up of non-FA systems except as interface verification. Any hot works are excluded.

Note: Where project-specific criteria are required but not provided, recognized benchmarks or typical ranges are stated with the tag [Verify per project specifications].

Documentation and Approvals

• Approved shop drawings, panel schedules, device addressing lists, Cause-and-Effect (C&E) matrix, network topology, and as-built markups.
• Approved Method Statement and ITP for T&C; Risk Assessment/Job Hazard Analysis.
• Manufacturer O&M manuals and programming tools available; latest approved firmware/software.
• All installation works complete, visually inspected, and pre-functional tests done (continuity, polarity, correct terminations, device mounting/height/location, labeling).
• Calibrated instruments and valid certificates (SLM, multimeter, acoustic calibrator, gas/heat testers).

Permits and Notifications

• Permit-to-Work (PTW) issued; impairment plan for fire alarm during testing; fire watch and temporary measures arranged if required.
• Stakeholder notification plan issued: building occupants, security, facility management, and Authority/Consultant. Signage to indicate testing in progress.

Site Conditions

• Permanent power available and stable; UPS/batteries installed/connected.
• Access provisions (keys, access platforms) arranged; ceilings closed or coordinated for re-access.
• Third-party systems ready for interface testing (HVAC, smoke control, dampers, lifts, access control, sprinklers/pumps, gas suppression, generators, BMS).

Task-Specific Hazards and Controls

• Hazard: Working at height (ladders/MEWP) to reach ceiling devices.
• Likely consequence: Falls leading to serious injury.
• Engineering/procedural control: Use inspected EN 131 ladders or certified MEWP; 3-point contact; prohibit overreach; set MEWP on firm ground; barricade area; use spotter.
• Required PPE: Hard hat with chin strap, safety shoes, fall arrest (MEWP per anchor), gloves.
• Collective preventive measure: Edge protection, MEWP guardrails, exclusion zones.

• Inspection/permit/supervision: Pre-use ladder/MEWP checks, valid LOLER certificate [Verify], PTW for MEWP; supervisor sign-off.

• Hazard: Live low-voltage circuits and batteries.

• Likely consequence: Electric shock, arcing, burns.
• Engineering/procedural control: De-energize circuits before re-termination; apply LOTO; use insulated tools; cover exposed terminals; observe OEM polarity.
• Required PPE: Insulated gloves, eye protection.
• Collective preventive measure: Barriers at panels, lockable covers.

• Inspection/permit/supervision: Electrical PTW; LOTO log; competent person supervision.

• Hazard: High sound levels during alarm tests.

• Likely consequence: Temporary or permanent hearing damage.
• Engineering/procedural control: Pre-notify occupants; limit test duration; stagger zones; monitor dB(A); schedule off-peak.
• Required PPE: Ear defenders/earplugs for test team.
• Collective preventive measure: Area notices, temporary hearing protection stations.

• Inspection/permit/supervision: HSE monitoring; keep dB logs.

• Hazard: Use of aerosol smoke and heat testers.

• Likely consequence: Respiratory irritation, flammability risk (depending on product), hot-surface burns.
• Engineering/procedural control: Use OEM-approved, non-flammable aerosols where available; ventilate post-test; follow safe distance/time; avoid spraying near open flames.
• Required PPE: Safety glasses, gloves, disposable masks if required.
• Collective preventive measure: Local ventilation and spill kits.

• Inspection/permit/supervision: COSHH/MSDS review; canister expiry check.

• Hazard: Interface testing triggers plant movement (fans/dampers/lifts).

• Likely consequence: Crush/entrapment, unexpected equipment start.
• Engineering/procedural control: Coordinate lock-out of mechanical hazards where needed; barricade moving equipment zones; clear communication on radios.
• Required PPE: Hard hat, gloves, high-vis vest.
• Collective preventive measure: Interlock verification before entry, signage and barriers.

• Inspection/permit/supervision: PTW for mechanical systems; vendor supervision.

• Hazard: Impairment of fire alarm during testing.

• Likely consequence: Reduced life safety.
• Engineering/procedural control: Implement impairment plan; temporary fire watch; portable extinguishers available; minimize impairment window; record start/stop times.
• Required PPE: Standard site PPE.
• Collective preventive measure: Building-wide notices, dedicated fire watch personnel.

• Inspection/permit/supervision: Impairment permit; coordinate with security/FM; [Verify per project HSE plan and local regulations].

• Hazard: Strobe lighting may induce seizures for photosensitive individuals.

• Likely consequence: Health incident.
• Engineering/procedural control: Advance warnings; allow opt-out from areas; minimize exposure time.
• Required PPE: N/A.
• Collective preventive measure: Signage at entrances.
• Inspection/permit/supervision: HSE monitoring and first-aid readiness.

Environmental Risk Controls

• Aerosol emissions: Use OEM-approved low-VOC, non-flammable test aerosols where possible; avoid overuse; ventilate areas; store/transport per MSDS; return empty cans for proper recycling.
• Battery handling/disposal: Handle lead-acid batteries carefully; avoid shorting; collect and dispose/recycle via licensed waste handler; spill kit for electrolyte leaks.
• Noise: Schedule loud tests off-peak; limit duration; doors/windows closed to reduce community noise.
• Dust/smoke perception: Inform occupants that visible test smoke may trigger nuisance; protect sensitive equipment with covers where necessary and remove immediately after.
• Energy use: Optimize test sequences to reduce prolonged plant runs; shut down test setups promptly when complete.
• Documentation: Keep environmental records and waste transfer notes. [Verify per project HSE plan and local regulations].

QA/QC Controls

• Instruments: All test equipment shall have valid calibration certificates (≤12 months unless otherwise specified). Acoustic calibrator used before/after SLM surveys with readings documented.
• Testing coverage: 100% of detectors, MCPs, interfaces, notification devices, and C&E scenarios tested. Sampling is not permitted for life-safety acceptance unless approved by the Authority/Consultant in writing.
• Labels and documentation: Each point ID shall match drawings and panel text. Deviations logged and corrected with as-built updates.
• Measurements and tolerances: Audibility per governing code (BS 5839-1 or NFPA 72). Voice intelligibility STI target typically ≥0.5 [Verify]. Waterflow retard ≤90 s typical [Verify]. Panel/loop fault indication and recovery per OEM/standard [Verify]. IR for unterminated cables ≥2 MΩ at 250 V DC typical [Verify].
• Software configuration control: Maintain version control; back up panel databases before and after final acceptance; store with T&C dossier.
• NCR/Snag control: Use standardized snag forms with category/severity; close all Category A/B prior to acceptance; obtain Consultant sign-off for any residual minor items.
• Records: Use controlled forms for each test type; include device IDs, timestamps, testers’ names/signatures, witness signatures, instrument serials, and calibration due dates.
• Training and O&M: Provide user manuals, quick-reference guides, and training attendance certificates.
• Handover readiness: No standing faults; all disablements/isolations cleared; logbook initiated; spare parts and keys handed over.

Acceptance Criteria Summary [Verify per project specifications]

• 100% device and interface functionality proven per approved C&E.
• Audibility and, if applicable, intelligibility meet code/contract.
• Power supply autonomy compliant with code-calculated capacity.
• Consultant/Authority witness approvals received; all snags closed.
• Complete T&C dossier submitted and accepted.

Attachments (to be included in T&C Dossier)

• Approved Cause-and-Effect Matrix (signed).
• Device Address/Location Schedule and As-Built Drawings (PDF + native formats).
• Panel Configuration Backups and Version Report.
• Pre-Commissioning and Commissioning Checklists (completed and signed).
• Audibility and Intelligibility Survey Reports with SLM/Calibrator certificates.
• Interface Test Certificates (Sprinkler/Fire Pump, HVAC/Smoke Control, Dampers, Lifts, Access Control, Gas Suppression, BMS/ARC).
• Power/Battery Calculation and Test Reports.
• Fault/Isolation Test Logs.
• Snag/Defect List and Closure Report.
• Training Materials, Agenda, and Attendance Sheets.
• Manufacturer O&M Manuals, Warranties, and Spare Parts List.
• Authority/Consultant Witness and Approval Certificates.
• Fire Alarm Logbook initialized with first entries.