Electrical insulator

Hazards

• A material that strongly resists electric-current flow under its rated conditions.

Controls

• Never assume a dry-looking surface is protective; use listed insulation within voltage, environment, and damage limits.

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

Never assume a dry-looking surface is protective; use listed insulation within voltage, environment, and damage limits.

Explore related entries

• Electrical conductor
• Electrical insulation