Overcurrent protection

Hazards

• A fuse or breaker system opening a circuit during excessive current conditions.

Controls

• Select interrupting rating and trip characteristics without defeating protective devices.

Personal protective equipment

• Select task-specific PPE only after hazards and higher-order controls have been evaluated.

Regional considerations

• Applicable law, permits, collective agreements, venue rules, and qualified-person decisions take precedence.

In practice

Select interrupting rating and trip characteristics without defeating protective devices.

Explore related entries

• Branch circuit
• Arc-flash boundary