Battery systems: trigger questions and direct controls

This energy type is present. This tool does not calculate it.

Battery strings cannot be switched off. Stored electrical energy, arc potential and chemical exposure are present at all times, and thermal runaway can propagate once started.

Trigger questions

Is the string voltage and stored energy known for the system being worked on?
Can the work be done with terminal covers in place?
Are insulated tools and battery-specific PPE in use?
Are metal items excluded from the work area?
Is the emergency response for arc and thermal runaway known to the team?

Controls to verify

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

Only authorised persons work on battery systems.
Insulated tools and covers are used at all times.
The connection or disconnection sequence is written and followed.
Ventilation and detection required for the battery type are working.

Some energy cannot be reduced to a simple field calculation. Where this energy is present in the work, treat it as high energy: the decision is made by presence, not arithmetic. Use the trigger questions and competent-person verification instead of a number.