Is it permissible to break trailering cables or power connections under load?

Is it permissible to break trailering cables or power connections under load?

• A. No
• B. Yes
• C. Only with supervision
• D. Only during maintenance

Answer: (A)

Handling trailering cables or power connections while current is flowing is dangerous because there can be electric shock, arc flash, and unintended movement of equipment when a live connection is broken. The safe practice is to remove all power before touching or disconnecting any cables. This means shutting off the power source, applying lockout/tagout to prevent re-energizing, and verifying there is no voltage with the proper tester before proceeding. Only with the power completely off and verified should connections be touched or serviced. That is why the correct approach is that it is not permissible to break such connections under load. The other options imply energy can be safely interrupted while energized, which isn’t allowed; supervision or maintenance terminology cannot remove the fundamental hazard of a live circuit.

Handling trailering cables or power connections while current is flowing is dangerous because there can be electric shock, arc flash, and unintended movement of equipment when a live connection is broken. The safe practice is to remove all power before touching or disconnecting any cables. This means shutting off the power source, applying lockout/tagout to prevent re-energizing, and verifying there is no voltage with the proper tester before proceeding. Only with the power completely off and verified should connections be touched or serviced.

That is why the correct approach is that it is not permissible to break such connections under load. The other options imply energy can be safely interrupted while energized, which isn’t allowed; supervision or maintenance terminology cannot remove the fundamental hazard of a live circuit.