1.0 Scope
1.1 This method statement details the method of installation of Distribution Boards (DBs).
2.0 Material
- Distribution Boards.
- Cable glands and lugs,
- P.V.C. wires,
- Identifications.
3.0 Applicable Location
- Respective electrical rooms, LV rooms and Appartments in E1,E2,E3 & W1,W2,W3 Towers, Podium and Villas.
4.0 Method
4.1 Storage
- DB’s shall be inspected upon receipt at site for damages and compliance with the approved submittals.
- Upon completion of receiving and inspection, the DB’s shall be repacked.
- Material found not suitable for the project is removed from site immediately.
- Distribution boards shall be stored in a covered and ventilated store.
- Distribution Boards are stacked in an array with manufacturer packing and avoid over stacking as per manufacturer’s recommendations.
4.2 Installation
- Ensure current/approved documents like shop drawing, electrical room layout and load schedules are available with the installation team.
- Shift the particular Distribution Boards and associated accessories to the work place with proper manpower.
- Check the label/marking to ensure the right board before installation.
- Mark the fixing position of the D.B. as per shop drawing, coordinate with other equipment and services.
- Fix the frame of the DB with proper metal plugs and bolts. Ensure the installation is straight and leveled.
- Suitable knock-out at the top of the DB’s shall be used for Incoming cable entry.
- File the knock-out to suit the cable glands and lugs for rigid terminations.
- In case of DB’s installed in apartments, make a provision on the gland plate at the top of the DB.
- Cut the gland plate to suit the trunking size to carry all the incoming and outgoing cables and wires.
- Ensure the busbars and interconnecting terminals are free from damage.
- Fix the appropriate breakers as per approved load schedule.
- Terminate all the circuits to its respective breakers with proper ferrule identification.
- Organize the wires neatly with cable ties.
- Clean the DB after dressing with blower to blow out all the small particles and dust after the termination works.
- Provide identification labels as per specification / approved submittals.
- Fix the doors.
- Place the approved load schedule copy inside the DB’s door.
- Inspection shall be offered to QC Verification.
5.0 Safety
5.1 All safety precautions shall be followed as per established project safety plan and procedure.
6.0 Records 6.1 Inspection request duly signed-off by NMX and Consultant.
