Question

To verify an electrically safe work condition, all these conditions should be confirmed EXCEPT:

The presence or absence of voltage
Sources of electrical supply are determined
Phase conductors are grounded
Disconnecting devices are closed
Feedback:Safe work conditions require disconnecting devices to be open.

Answer 1

To verify an electrically safe work condition, all the conditions should be confirmed EXCEPT disconnecting devices being closed.To ensure electrical safety, verify absence of voltage, isolate power sources, ground phase conductors, but keep disconnecting devices open, not closed.

Step-by-step explanation:

To verify an electrically safe work condition, all the conditions should be confirmed EXCEPT disconnecting devices being closed.

1. Confirm the presence or absence of voltage.
2. Determine sources of electrical supply.
3. Ground the phase conductors.
4. Open the disconnecting devices.

Disconnecting devices must be opened to ensure electrical safety in order to prevent accidental contact with live wires when performing work on electrical systems.

Verifying an electrically safe work condition is a critical step in ensuring the safety of personnel working with electrical systems. One crucial aspect is confirming the absence of voltage to prevent electrical accidents. It's imperative to identify and isolate all potential sources of electrical supply, ensuring that they are effectively disconnected. Grounding phase conductors is another vital consideration to prevent accidental energization. However, the exception lies in the state of disconnecting devices – they must be open, not closed, to guarantee safety. Closing disconnecting devices could create a hazardous situation by inadvertently energizing the system, emphasizing the necessity for a clear and unambiguous verification process.