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

Working at high voltage requires careful planning, preparation, and adherence to strict safety procedures to minimize the risk of accidents and injuries. The sequence of operations to be carried out for working at high voltage typically includes the following steps:

1. Pre-Job Planning:

   • Conduct a thorough risk assessment of the work to be performed, considering factors such as voltage levels, equipment condition, environmental conditions, and potential hazards.
   • Identify all necessary permits, authorizations, and clearances required before starting work, such as lockout/tagout permits and work permits.
   • Develop a detailed work plan that outlines the scope of work, tasks to be performed, safety precautions, and emergency procedures.

2. Safety Briefing:

   • Hold a pre-job safety briefing with all personnel involved in the work to review the work plan, safety procedures, and potential hazards.
   • Ensure that all workers understand their roles and responsibilities, including the use of personal protective equipment (PPE) and adherence to safety protocols.

3. Isolation and Lockout/Tagout:

   • Isolate the electrical equipment from its power source and de-energize the circuit by following established lockout/tagout procedures.
   • Physically lock and tag the equipment to prevent accidental energization and ensure that only authorized personnel can access the work area.

4. Testing and Verification:

   • Test the electrical equipment and circuit to verify that it is de-energized and safe to work on using appropriate testing instruments, such as voltage detectors and phase rotation testers.
   • Confirm the absence of voltage at all points of contact and ensure that stored energy has been dissipated before proceeding with the work.

5. Work Execution:

   • Perform the planned maintenance, repair, or installation work on the electrical equipment while adhering to established safety procedures and best practices.
   • Use insulated tools and equipment designed for high voltage work to minimize the risk of electric shock and arc flash hazards.
   • Work methodically and carefully, avoiding unnecessary movements or actions that could compromise safety.

6. Post-Job Verification:

   • Once the work is completed, retest the electrical equipment and circuit to verify that it has been restored to a safe condition.
   • Remove lockout/tagout devices and restore power to the equipment only after ensuring that all personnel and tools are clear of the work area.
   • Conduct a post-job review to evaluate the effectiveness of safety procedures, identify any lessons learned, and make recommendations for future improvements.

By following this sequence of operations for working at high voltage, organizations can minimize the risk of accidents and injuries, protect workers' safety, and ensure compliance with regulatory requirements.