Ampacity

Hazards

• The maximum current a conductor may carry continuously under stated conditions without exceeding its temperature rating.

Controls

• Apply conductor material, insulation, bundling, ambient temperature, connectors, duty, and code adjustment factors.

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

Apply conductor material, insulation, bundling, ambient temperature, connectors, duty, and code adjustment factors.

Explore related entries

• Short circuit
• Interrupting rating