Method Statement Title: Installation of Low Voltage Panels (lvp’s).

Method Statement Title: Installation of Low Voltage Panels (LVP’s). – 1.0       Scope

Method Statement Title: Installation of Low Voltage Panels (LVP’s).

1. This method statement details the method of installation of L.V main Panels (LVPs) according to the Specification Section 16402.

Note : A separate Method Statement ref. ETA/MS/E-29 shall be submitted for Testing & Commissioning.

2.0       Material

• All materials shall be as per approved material submittals, shop drawing and single line diagram.
  • L.V. Main Panels.
  • Cable glands and lugs.
  • Identification labels and tags.

3.0       Applicable Location

• L.V. rooms for E1,E2,E3 & W1,W2,W3 Towers Located in Podium areas.

4.0       Method

• Storage  

Note: L.V. Panels will be offered for factory inspection/witness by Design Consultant prior to material dispatch

• LVP’s shall be inspected upon receipt at site for damages and compliance with the approved submittals and Single line Diagram.

• Upon completion of receiving inspection, the LVP’s shall be positioned at the respective substation locations with suitable crane arrangements.

• LVPs found with transportation damages shall be recorded and notified to the concern party for further action.

• LVP’s shall be covered with polythene sheets to protect from dust and moisture.

4.2       Installation

• Ensure approved documents like shop drawing, SLD, electrical room layout and load schedules are available with the installation team.

• Check the label/marking to ensure that it is the right panel and check the position according to the shop drawing.

• Check the breaker rating and the provision for cable / bus bar termination.

• Set the breaker current rating as per approved shop drawing.

• Terminate the incoming and outgoing cable as per single line diagram using proper tools.

• Megger the panels after connecting the compartments.

• Megger the cables before terminating.

• Megger the panel after termination, when I/C open and O/G closed.

• Check working of motorized breakers.

• Clean the termination and breaker cubicles with vacuum cleaner and hand brush to clean the dust and small metal pieces fallen during cable cutting and terminating process.

• Ensure the busbars and interconnecting terminals are free from dust and damage.

• Provide identification for all the cable termination as per specification requirement and SLD.

• Dress the cables neatly with cable ties / cable cleat.

• Double check the connections by tightening the terminations.

• Keep the approved single line diagram near the LVP’s (photo framed), wall mounted inside the substation.

• Inspection shall be offered for QC Verification before DEWA inspection.

6.0       Records

            6.1       QC Inspection Check List.

• Inspection request duly signed-off by NMX and Consultant.

7.0       Attachment

• Inspection Check List for L.V. Panels .

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