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Electrical Engineering Academy

Method for Installation of DB or Panel-(Part-1)


METHOD FOR INSTALLATION OF DB OR PANEL-(PART-1)

PURPOSE:

  • This method of statement describe the procedure for safely installation and testing of DB and LV Panel as per contract specification and as per the standard Practice and Code.

GENERAL EQUIPMENT & TOOLS:

  • The equipment that will be engaged for Installation of Panel ,D.B will be * Tool Box with Screwdriver, Pliers, Spanner , Hammer * Drilling Machine with various Bits , Grinding & Cutting Machine * Electrical Tester , Continuity Tester ,Multi Meter , Earth Tester , IR Tester * Wire Cutter , Blower ,Crimping Tools * Knockout punch and Flat File * Marker, Measuring tape, Level gauge / Spirit level. * Ladder / Scaffolding / Mobile scaffold * Chain Block and Pipe Wrench * Portable Lights * Removable Barricades

STORAGE & MATERIAL HANDLING:.

  • Suitable lockable storage shall be made on Site. * The storage area must be free from dust and Water leakages / seepages. * The DB, Panel and Accessories shall be unloaded with care in designated area of the Store to avoid any damages and against the effects of weather or any construction activities of Site. * The Material will be stacked / unload in the site store on a proper stand on wooden loft on a flat surface at a sufficient height from Ground. * Materials shall be stored in a place free of water and adequately covered to avoid any kind of damages. * Proper protection should be given to the material by means of covering the material with Tarpaulin sheet etc. * If they are dispatch in packs or pallets, each pack of pallet shall be lifted individually with suitable lifting equipment. * The material shall be transported / Shifted in their original packing to Site location.

INSPECTION OF MATERIALS:

  • Inspection of Materials: * Check the reference of delivered material against approved submittal and purchase order. * Check The Material according to its Type, Size, Make * Physical Damages Inspection: * In case of any damages observed during inspection, the concern report will be issued and Material shall be returned to the supplier for replacement.

SEQUENCE OF INSTALLATION WORKS:

(1) SHIFTING OF PANEL ON SITE

  • Prior to commencement of Panel installation works, areas and access shall be checked and confirmed by safety officer, that they are in a suitable Condition for installation works. * Decide appropriate Size of Crain / Hydra according to weight of Panel. * Panel shall be carefully unloaded or shifted to the site by using Crane/Hydra or by sufficient manpower and moved to a defined installation location. * Remove the packing and ensure that the panel is free from transportation damages * Check The shop drawings, Material submittals, Method statement, ITP & HIRA are approved, * Ensure all contents are available inside the panel. * Ensure control wiring identification shall be correctly done. * Megger shall be used having a valid calibration certificate.

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(2) INSTALLATION OF PANEL:

  • Marking of Panel Position: * For floor mounted panel, the exact location of the panel and fixing holes to be marked on the concrete plinth for the installation.

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  • Remove the Factory packing and ensure that the LT panel is free from transportation damages

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  • Install the panel in proper alignment and fix properly.

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  • To secure panel base to the floor using M12 anchor bolts. * Access around the panel to be checked for future maintenance as per regulations. * Ensure the services contains water is away from the panel or properly protected against any accidental leakages. * Incoming and outgoing cables shall be marked/identified as per approved shop drawing. * Mark the fixing position of the DB’s support as per approved shop drawing and coordinate with other equipment and services. * After marking are then drilled according to the selected sizes of anchor bolts to appropriate depth as per approved shop drawing. * Locknuts on the anchor bolts will ensure a permanent fixing of the DB support to the wall/slab. * After installation of DB supports, installing position of the DB as per approved shop drawing. * Ensure that painting of the wall is completed prior to marking and mounting of DB. * All DBs wall mounting and floor mounted arrangement will be in accordance with approved shop drawings and the approved material submittal. * If there is more than one DB to be installed at the same location, they shall be installed side by side and clearance shall be maintained as per approved shop drawing. * The height of Distribution Board shall be maintained as per approved shop drawing so that easy access for termination of cables and other maintenance work can be carried out. * Check the position according to the approved shop drawings. * Check & ensure adequate space is available for maintenance * After installation, the panel shall be properly cleaned and protected to prevent dust & contamination. * Before beginning …