Calculation support, not a guaranteed safety decision.

Each card is a reference, not a to-do list: it shows the energy present in that activity, then links to a calculator or trigger check. Open a card to see the direct controls to verify before work starts.

Lifting and logistics · 8 tasks

Flatbed unloading

Gravity calculator
Gravity Motion

Unloading materials from a flatbed involves loads at height, shifting cargo and plant movement around people on foot.

Forklift unloading

Kinetic calculator
Motion Gravity

Forklift unloading combines a moving machine, elevated loads and people on foot in the same area.

Telehandler unloading

Kinetic calculator
Motion Gravity Mechanical

Telehandler unloading adds reach, boom height and tip-over exposure to normal forklift hazards.

Crane lift

Gravity calculator
Gravity Motion Mechanical

A crane lift places a suspended load above people, plant and structures along the lift path.

Suspended load

Gravity calculator
Gravity

A load lifted or held above ground stores gravitational energy that is released if the load falls.

Switchgear movement on skates

Kinetic calculator
Motion Gravity Mechanical

Moving heavy switchgear on skates creates crush, tip-over and line-of-fire exposure.

Motion Gravity

Delivering and positioning a chiller involves a very heavy moving load, lifting equipment and tight interfaces with structures and people.

Generator set down

Gravity calculator
Gravity Motion

Setting down a generator involves a heavy suspended load, final positioning by hand signals and people working close to the load.

Work at height · 9 tasks

MEWP work

Gravity calculator
Gravity Motion

Work from a mobile elevating work platform combines fall exposure, dropped objects and machine movement near people and structures.

Scaffold work

Gravity calculator
Gravity

Erecting, altering or working from scaffold creates fall exposure for people and dropped-object exposure for anyone below.

Roof work

Gravity calculator
Gravity Thermal

Roof work exposes people to falls from the edge or through fragile surfaces, and exposes those below to dropped materials.

Cladding installation

Gravity calculator
Gravity Motion

Installing cladding panels involves large loads at height, mechanical lifting and wind-affected handling.

Dropped tool or small object

Gravity calculator
Gravity

A tool or fixing dropped from height concentrates energy into a small point of impact on anyone below.

Gravity Mechanical Sound

Installing cable tray, basket and ladder overhead involves sustained work at height with tools, fixings and containment sections above other trades, plus cutting and drilling noise.

Ceiling installation

Gravity calculator
Gravity Sound

Installing ceiling grids, tiles and above-ceiling services combines overhead work, dropped components and power tool use above other trades.

Gravity Mechanical Sound

Installing unistrut framing and bracketry involves overhead drilling into concrete, anchor loads and power tool use above other trades.

Rack structure installation

Gravity calculator
Gravity Mechanical Sound

Installing rack frames and support steel inside data halls involves heavy sections, overhead fixing and drilling, grinding and screwing in enclosed space.

Electrical and power · 16 tasks

Temporary power setup

Trigger checks
Electrical

Setting up temporary power introduces energised distribution equipment into a changing construction environment.

Panel energisation

Trigger checks
Electrical Thermal

Energising a panel introduces electrical energy that this tool does not calculate.

Live testing

Trigger checks
Electrical Thermal

Live testing deliberately applies electrical energy while people are working close to the equipment under test.

Switchgear commissioning

Trigger checks
Electrical Thermal

Commissioning switchgear moves equipment from a dead construction state to an energised operational state in stages.

Transformer delivery

Kinetic calculator
Motion Gravity Electrical

Transformer delivery combines a very heavy moving load with lifting, positioning and later connection to electrical systems.

UPS module installation

Gravity calculator
Gravity Electrical

Installing UPS modules involves heavy units, tight plant rooms and proximity to existing electrical systems.

Battery rack installation

Gravity calculator
Gravity Electrical Chemical

Installing battery racks involves heavy components, stored electrical energy and chemical exposure in confined plant space.

Battery connection

Trigger checks
Electrical Chemical Thermal

Connecting batteries works directly on terminals that cannot be de-energised, with arc and chemical exposure.

Cable drum handling

Kinetic calculator
Motion Gravity Mechanical

Moving and setting up heavy cable drums creates rolling, crush and uncontrolled-movement exposure.

Cable pulling

Trigger checks
Mechanical Motion Electrical

Cable pulling puts hands near rollers and pinch points while tension is applied to heavy cable runs.

Busbar installation

Gravity calculator
Gravity Electrical

Installing busbar sections involves heavy components at height and later connection to energised systems.

Electrical Mechanical

Terminating and testing cables works at the boundary between dead construction wiring and systems that can be energised from elsewhere.

Electrical

Installing earthing grids and bonding connects new conductors into systems that may already carry fault or induced current.

Lighting installation

Gravity calculator
Gravity Electrical

Installing luminaires and emergency lighting combines overhead work from steps or MEWPs with wiring that may become energised during commissioning.

BAS and BMS installation

Trigger checks
Electrical

Installing controls cabling, sensors and panels routes low-voltage work through plant rooms and risers shared with energised power systems.

Chemical

Applying epoxy coatings in battery rooms and containment areas exposes people to solvents, resins and vapour in enclosed spaces.

Mechanical and pressure · 13 tasks

Pipe spool installation

Gravity calculator
Gravity Pressure

Installing pipe spools involves heavy sections, work at height and future pressure energy in the completed system.

Pump set installation

Gravity calculator
Gravity Mechanical

Installing pump sets involves heavy units, mechanical alignment work and later rotating and pressure energy.

Hydrostatic pressure test

Trigger checks
Pressure

A hydrostatic test pressurises pipework with water to prove integrity before service.

Pneumatic pressure test

Trigger checks
Pressure

A pneumatic test uses compressed gas, which stores far more energy than water at the same pressure.

Refrigerant charging

Trigger checks
Chemical Pressure Thermal

Charging refrigerant handles pressurised chemical under pressure with asphyxiation and cold-burn exposure.

Chemical dosing

Trigger checks
Chemical Pressure

Dosing water treatment chemicals involves corrosive or reactive substances under pressure in occupied plant spaces.

Fan start-up

Trigger checks
Mechanical Motion Electrical

Starting fans introduces rotating energy and airflow into systems that people may still be working on.

Pump start-up

Trigger checks
Mechanical Electrical Pressure

Starting pumps introduces rotating and pressure energy into pipework that may still be open or occupied by other trades.

Gravity Motion Sound

Installing air handling units and plant involves very heavy modules, machine lifting into tight plant rooms and power tool work around the unit.

HVAC ductwork installation

Gravity calculator
Gravity Mechanical Sound

Installing ductwork involves large sections handled overhead, sharp sheet edges and cutting, drilling and grinding above other trades.

Process piping installation

Gravity calculator
Gravity Pressure Sound

Installing chilled water and condensate pipework involves heavy pipe at height, threading and grinding, and future pressure in the completed system.

Insulation installation

Trigger checks
Chemical Thermal

Insulating pipework and ductwork uses adhesives, sealants and fibrous materials, often overhead and in enclosed spaces.

Heat trace installation

Trigger checks
Electrical Thermal

Installing heat trace fits electrical heating elements along pipework that later becomes both energised and hot.

Fire and protection systems · 7 tasks

Pressure Gravity Chemical

Handling suppression cylinders involves very high pressure vessels that become projectiles if a valve is damaged.

Fire mains pressure test

Trigger checks
Pressure

Fire main acceptance testing pressurises large-diameter pipework, normally with water under NFPA 24. Air is only used as a cold-weather interim test and does not replace the hydrostatic test.

Sprinkler system installation

Gravity calculator
Gravity Pressure Sound

Installing sprinkler pipework involves heavy pipe overhead, threading and grooving machinery, and a system that is later filled and pressurised.

Gravity Pressure Sound

Installing detection pipework, detectors and panels involves overhead drilling and work that continues into rooms with live systems as commissioning progresses.

Gravity Mechanical Sound

Installing dampers in duct penetrations combines overhead work, spring-loaded mechanisms and drilling and cutting at the slab or wall line.

Pressure

Installing leak detection cable and panels routes work along live or soon-to-be-live water systems under raised floors and in service corridors.

Chemical Sound

Spraying intumescent and fire proofing coatings releases solvent vapour and overspray, usually at height and across areas shared with other trades.

Civil, structures and fit-out · 8 tasks

Motion Gravity Mechanical Sound

External earthworks use excavators, loaders and rollers around people on foot, with ground instability and buried services.

Excavation

Trigger checks
Gravity Motion Mechanical Sound

Excavation work combines ground collapse exposure, plant movement and buried services.

Trenching

Trigger checks
Gravity Mechanical Sound

Trenching creates long open excavations with collapse exposure and repeated entry by operatives.

Buried services exposure

Trigger checks
Electrical Pressure Chemical

Exposing buried services risks striking electrical, gas, water or communications assets whose state is unknown.

Concrete pour

Trigger checks
Pressure Motion Chemical Sound

Concrete pours involve pumping under pressure, moving plant, formwork loading and chemical burn exposure.

Structural steel erection

Gravity calculator
Gravity Mechanical Sound

Erecting structural steel combines crane lifts, work at height, heavy sections being landed and bolted, and grinding and welding.

Partition and wall construction

Gravity calculator
Gravity Sound

Building partitions and bulkheads involves boards and framing handled at height, repetitive drilling and cutting and heavy material movement.

Chemical Sound

Snagging and touch-up work spreads small tasks with solvents, sanding and light access equipment across finished areas.

Commissioning and testing · 3 tasks

Load bank testing

Trigger checks
Electrical Thermal

Load bank testing applies full electrical load, producing high current and intense heat at the load bank.

Electrical Mechanical Pressure Thermal

Integrated testing runs multiple building systems together, so equipment can start, move or change state without local warning.

Sequential energisation

Trigger checks
Electrical

Sequential energisation brings sections of the electrical system live in a planned order over days or weeks.