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.

Energy: Pressure ×

Lifting and logistics · 0 tasks

Work at height · 0 tasks

Electrical and power · 0 tasks

Mechanical and pressure · 7 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.

Hydrostatic pressure test

Trigger checks
Pressure

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

Pneumatic pressure test

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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

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Chemical Pressure

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

Pump start-up

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Mechanical Electrical Pressure

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

Fire and protection systems · 5 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.

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.

Civil, structures and fit-out · 2 tasks

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.

Commissioning and testing · 1 task

Electrical Mechanical Pressure Thermal

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