This is an essential safety procedure that protects workers from injury while working on or near electrical circuits and equipment by locking the device and/or power source to prevent anyone from turning on the hazardous power sources while someone is performing maintenance or servicing work:

Lock out is a energy isolating device which is used to prevent works from being injured when working on or near an electrical device.

Explanation:

The lock out device physically locks the device from the system in a safe mode. It is a device to control hazardous energy emitted from various electrical instruments. The lockout device should be durable enough to withstand workplace condition and should be standardized according to color, shape and size

This is an essential safety procedure that protects workers from injury while working on or near electrical circuits and equipment by locking the device and/or power source to prevent anyone from turning on the hazardous power sources while someone is performing maintenance or servicing work:

Select the best option.

Shutdown

Lockout/Tagout

Closeout

Explanation:

The Answer is:

Lockout/Tagout