Here are the some key points for HV switchgear installation uploaded by MSRA DOCS:
Safety: Safety is the top priority during HV switchgear installation. All necessary safety precautions should be taken to protect workers and the environment.
Equipment preparation: All equipment should be inspected and tested before use to ensure that it is fit for purpose.
Site preparation: The installation site should be prepared by clearing any obstacles, ensuring that the area is clean and dry, and providing access equipment if needed.
Installation procedure: The installation procedure should follow the approved design and the manufacturer's instructions. All connections should be made according to specified torque settings and in accordance with relevant standards and regulations.
Testing and commissioning: The switchgear should be tested and commissioned to ensure it is functioning correctly and safely. This includes electrical testing, functional testing, and performance testing.
Documentation: Accurate records of all installation procedures should be kept, including test results, inspection reports, and any changes made to the original design.
Training: Personnel involved in the operation and maintenance of the switchgear should be properly trained and competent. This includes training on the operation of the switchgear, maintenance procedures, and emergency procedures.
Handover: Once the installation is complete and testing and commissioning have been carried out, the switchgear should be handed over to the owner or operator. All relevant information, documentation, and maintenance requirements should be provided.
Table of Contents
1. Purpose
2. Scope of Work
3. References
4. Responsible Personnel on Site
5. Safety
6. Delivery
7. Storage
8. Pre-Installation
9. Installation Procedure
10. Tools
11. Inspection
12. Attachment
1. Purpose
This Method Statement covers installations of 11KV switchgear.
2. Scope of Work
This Method of Statement defines the installation of 11 kV Switchgear and all related works to make the system function properly.
3. References
3.1 QAQC
3.2. Project Specifications
3.3. Approved [Company/Main Contractor] Drawings
3.4. Approved Material Submittal
3.5. Approved Safety Plan
3.6. Approved shop drawing
3.7. Manufacturer recommendations
4. Responsible Personnel on Site
4.1. Electrical Field Engineers
4.2. Safety Officer
4.3. QA/QC Engineer
4.4. Electrical Superintendent
4.5. Approved HV subcontractor from [Company/Main Contractor]
5. Safety
5.1. All safety precautions shall be followed as per the approved safety plan & procedure.
5.2. Ensure all involved persons are aware of the same.
5.3. Safety Officer to ensure that all tools and equipment are suitable and in good condition.
5.4. Ensure that all tradesmen shall leave their working places clean, tidy, and free of rubbish.
6. Delivery
6.1. The approved switchgear is [Write down Manufacturer and Country Name etc.].
6.2. Check for any damages, or scratches on packing before acceptance of delivery.
6.3. Check the capacity, voltage, and country of origin and be sure are
6.4. And following the approved material submittal.
7. Storage
7.1. Use a forklift or mobile crane to offload the HV switchgear.
7.2. Make sure that the capacity of the Forklift or mobile crane can carry the weight of the switchgear.
7.3. Offloading switchgear on the designated offloading area.
7.4. Proper care must be observed during offloading to prevent unnecessary damage to the switchgear.
7.5. Move the switchgear to a dry and clean storage area through the use of the forklift.
7.6. Ensure that the switchgear is properly protected and covered by a tarpaulin.
7.7. Submit the material delivery form to the consultant for their inspection and approval.
8. Pre-Installation
8.1. All materials and documentation relevant to this particular section of works shall be checked before installation and all the installation shall be as per [Company/Main Contractor] Drawings.
8.2. Before any permanent work will be started, an inspection of all materials, tools, and accessories shall be carried out.
8.3. Cables shall be checked for continuity and insulation resistance and records shall be kept for future reference.
8.4. Ensure that proper access is to execute the works in a suitable condition and free from obstruction.
9. Installation Procedure
9.1. It has been presumed that all related civil works have been completed before the switchgear installation
9.2. Installation of 11 kV Switchgear shall be carried out as per the manufacturer's recommendation.
9.3. Crane, forklift, and equipment to be used for handling the switchgear shall be inspected and be in good condition.
9.4. An experienced technician with the proper tools to carry out the installation works.
9.5. Safety measures are to be considered at every stage of installation.
9.6. Lose all the fixing bolts.
9.7. Lift the equipment by crane and by using the proper sling wire hooked to the lifting hook.
9.8. Mobile forklift to be prepared inside the sub-station or near the door to receive the panels.
9.9. Shift the panels to their foundations.
9.10. Assemble the complete switchboards as per layout drawings and check the alignment.
9.11. Bolt on the panels to the ground.
9.12. Clean the boards thoroughly.
9.13. Assemble the bus bar and torques wrench all the bolts with the proper and calibrated torque wrench machine
9.14. Connect inter-wiring between the panels.
9.15. Connect DC cables between the battery charger and switchgear panel.
9.16. Connect AC cable between distribution board and switchgear.
9.17. Check the operation manually.
10. Tools
10.1. Electric-powered tools: Drill, grinder.
10.2. Hand tools: Screwdrivers, pliers, wrenches, crowbars, and hammers.
10.3. Meters: Earth resistance test meter, insulation test meter, 11KV test meter.
10.4. Mechanical test tools: Torque wrench.
11. Inspection
11.1. A request for inspection shall be raised. One request after installation of Switchgear and the second after cable termination.
11.2. Before energizing, [Company/Main Contractor] engineer will inspect and test the switchgear.
12. Attachment
Risk Assessment
Post a Comment