Which device is used to detect voltage presence?

Which device is used to detect voltage presence?

• A. Torque wrench/screwdriver
• B. Meggers
• C. Crimpers
• D. TIC Tracers / Voltage Tester

Answer: (D)

Detecting whether a circuit is energized is done with a voltage tester. A TIC Tracers / Voltage Tester is built to sense electrical potential and provide an indication (sound or light) when it’s near or touching a live conductor. This makes it the best tool for confirming voltage presence before you work, which is essential for safety and proper lockout/tagout. The other tools aren’t meant for this purpose. A torque wrench or screwdriver measures or applies torque to fasteners, not voltage. A megger checks insulation resistance, which is about the condition of insulation rather than whether a circuit is currently live. Crimpers are used to join wires with connectors, not to detect voltage.

Detecting whether a circuit is energized is done with a voltage tester. A TIC Tracers / Voltage Tester is built to sense electrical potential and provide an indication (sound or light) when it’s near or touching a live conductor. This makes it the best tool for confirming voltage presence before you work, which is essential for safety and proper lockout/tagout.

The other tools aren’t meant for this purpose. A torque wrench or screwdriver measures or applies torque to fasteners, not voltage. A megger checks insulation resistance, which is about the condition of insulation rather than whether a circuit is currently live. Crimpers are used to join wires with connectors, not to detect voltage.