Fan start-up: energy sources and direct controls

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

High-energy check

Treat first start as high energy. Rotating parts, coast-down time and unexpected remote starts are the main exposures.

Run the kinetic calculator for this task

Trigger checks

Mechanical
Moving parts, tools, tension, rotation or stored mechanical force.
Electrical
Current, voltage, energisation, arc flash or stored electrical energy.

Direct controls to verify

Ticks stay on this screen only. Nothing is saved or sent.

Guards are fitted and secured before any start.
Isolation is applied and proven before hands enter the unit.
Duct route is confirmed clear of people before the start.
Start is authorised and announced by a named person.
Coast-down time is respected before any access after stopping.
Stop if an unexpected start or vibration occurs.

For your SPA or pre-start

State how the fan is isolated before guards are fitted, who authorises the start, how people in the duct route are cleared and the coast-down time.

Limitations: This tool supports planning and verification only. It does not replace competent risk assessment, legal duties, employer procedures, client requirements or competent supervision.