What is the role of the energy isolation point in electrical safety?

• A. It is where energy is stored for later use.
• B. It is used to energise equipment during maintenance.
• C. It is where circuits are physically isolated from power supply and can be locked and tagged to prevent energisation during maintenance.
• D. It is a place to test electrical insulation.

Answer: (C)

The energy isolation point is the controlled location where a circuit or piece of equipment is physically disconnected from all energy sources and secured so it cannot be energised during maintenance. By applying a lock and tag at this point, the person performing the work prevents anyone else from restoring power until the lock is removed under proper procedures. This creates a verifiable barrier to energisation, protecting workers from shocks, burns, or unexpected movement of equipment. It’s not for storing energy, not used to energise equipment during maintenance, and not a testing spot for insulation.