Working at height in ceiling spaces and on elevated work platforms
HighInstallers routinely access ceiling voids, plant platforms, and high-level corridors to run cabling and mount detectors, often above live tenancies or incomplete floor slabs. Restricted access, unstable ceiling grids, and congested services increase the likelihood of falls through fragile surfaces or from EWP baskets.
Consequence: Serious injury or fatality from falls greater than two metres, falling objects striking personnel below, structural damage to ceiling systems, and project delays pending incident investigation.
Electrical shock or arc flash during isolation and termination
HighFire alarm CIE and power supplies interface with 240 V a.c. primary circuits and 24 V d.c. distribution. In refurbishments, existing systems may remain energised for occupant safety, exposing technicians to live terminals, battery banks, and inadvertent backfeeding if isolations are incomplete or labelled incorrectly.
Consequence: Electric shock, burns, or arc flash injuries requiring hospitalisation, damage to CIE components, and activation of fire systems causing evacuation and loss of productivity.
Penetrations and hot work creating fire and respiratory risks
MediumDrilling, coring, or soldering for cable pathways can generate sparks, heat, silica dust, and fumes within confined areas. Poor extraction or inadequate fire stopping can leave combustible debris smouldering in concealed spaces.
Consequence: Localised fire, smoke inhalation, worsening of pre-existing respiratory conditions, and non-compliance with fire-separation requirements leading to rectification works.
Manual handling of cable drums, batteries, and control cabinets
MediumFire alarm work involves hoisting CIE enclosures, batteries up to 30 kg, and drums of halogen-free fire-rated cable through restricted access ways. Repetitive lifting or twisting without assistance can injure the musculoskeletal system.
Consequence: Muscle strains, hernias, lost-time injuries, and diminished productivity leading to programme slippage.
Coordination clashes with other trades and building occupants
MediumConcurrent ceiling, HVAC, sprinkler, and fit-out works create congestion, noise, and dust. Failure to coordinate isolations, access times, and commissioning sequences can lead to accidental activation, trip hazards, or damage to newly installed devices.
Consequence: Injury from slips or collisions, rework due to damaged equipment, false alarms disrupting operations, and strained stakeholder relationships.