1.0. Scope
This methodology document highlights the technical guidelines for the installation of Electrical Distribution Boards (DBs).
2.0. Material
2.1. Distribution Boards.
2.2. Cable glands and lugs,
2.3. P.V.C. wires,
2.4. Identifications.
3.0. Applicable Location
3.1. Respective electrical rooms, LV rooms, and Apartments [Locations Here].
4.0. Methodology
4.1. Storage
4.1.1. DBs, shall be inspected upon receipt at the site for damages and compliance with the approved submittals.
4.1.2. Upon completion of receiving and inspection, the DBs shall be repacked.
4.1.3. Material found not suitable for the project is removed from the over-stacking site immediately.
4.1.4. Distribution boards shall be stored in a covered and ventilated store.
4.1.5. Distribution Boards are stacked in an array with manufacturer packing and avoid them as per the manufacturer’s recommendations.
4.2. Installation
4.2.1. Ensure current/approved documents like shop drawings, electrical room layout, and load schedules are available with the installation team.
4.2.2. Shift the particular Distribution Boards and associated accessories to the workplace with proper manpower.
4.2.3. Examine and check the label and or marking to make sure that the right, compatible, and standardized board before installation.
4.2.4. Mark the fixing position of the D.B. as per shop drawing, coordinate with other equipment and services
4.2.5. Adjust and or the frame of the Distribution Boards with proper metal plugs and bolts. Also, make sure that the installation is straight and balanced.
4.2.6. Suitable knock-out at the top of the DBs shall be used for Incoming cable entry.
4.2.7. File the knock-out to suit the cable glands and lugs for rigid terminations.
4.2.8. In the case of DBs installed in apartments, make a provision on the gland plate at the top of the DB.
4.2.9. Cut the gland plate to suit the trunking size to carry all the incoming and outgoing cables and wires.
4.2.10. Make sure that the busbars and interconnecting terminals are free from any contaminants, rust, and or damage.
4.2.11. Fix the appropriate breakers as per the approved load schedule.
4.2.12. Terminate all the circuits to their respective breakers with proper ferrule identification.
4.2.13. Organize the wires neatly with cable ties.
4.2.14. Clean the DB after dressing with the blower to blow out all the small particles and dust after the termination works.
4.2.15. Provide identification labels as per specification / approved submittals.
4.2.16. Fix the doors.
4.2.17. Place the approved load schedule copy inside the DB’s door.
4.2.18. Inspection shall be offered to Quality Control Verification.
5.0. Safety
5.1. All safety control initiatives shall be practiced as per the established and approved project safety plan and procedure.
6.0. Records
6.1. Inspection request duly signed off by Consultant.
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