State the sequece of operations to be carried out for working at High Voltage.

 Working at high voltage is a hazardous activity and involves a high level of risk. It is important to take all the necessary precautions to ensure the safety of the workers involved. Here is a sequence of operations to be carried out for working at high voltage:

1. Obtain authorization: The first step is to obtain authorization from the authorized personnel to work at high voltage. Only trained personnel should be allowed to work with high voltage electrical systems.

2. Identify the hazards: It is important to identify all the potential hazards associated with the high voltage electrical system. This includes the risk of electric shock, arc flash, and fire.

3. Isolate the system: The high voltage electrical system must be isolated from the power source before any work can begin. This involves turning off the main switch and locking it to prevent accidental re-energization.

4. Verify the absence of voltage: Before working on the system, it is important to verify the absence of voltage using a voltage detector or other appropriate testing equipment.

5. Use appropriate personal protective equipment (PPE): Workers must wear appropriate PPE when working at high voltage. This includes insulated gloves, boots, and clothing, as well as face shields and hard hats.

6. Use proper tools: Only tools specifically designed for use at high voltage should be used. These tools must be properly insulated and tested before use.

7. Follow proper procedures: Workers must follow proper procedures when working at high voltage. This includes following lockout/tagout procedures, grounding the system, and maintaining a safe distance from the electrical equipment.

8. Monitor the work: The work must be monitored at all times to ensure that proper procedures are being followed and that workers are safe.

9. De-energize the system: Once the work is completed, the high voltage electrical system must be de-energized, isolated, and tested before it can be safely re-energized.

10. Perform post-job activities: After the work is completed, a post-job analysis should be performed to evaluate the effectiveness of the safety procedures and identify any areas for improvement.

In conclusion, working at high voltage is a dangerous activity that requires a high level of expertise and attention to detail. It is important to take all necessary precautions to ensure the safety of the workers involved, including proper authorization, hazard identification, isolation of the system, verification of the absence of voltage, use of appropriate PPE and tools, following proper procedures, monitoring the work, de-energizing the system, and performing post-job activities.

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