Method Statement Title: Testing and Commissioning of Isolators & Switching accessories
1.0 Scope
1.1 This method statement details the Testing and Commissioning of Isolators and Switching accessories according to the specification section 16415.
2.0 Material
- All the materials shall be as per approved material submittals.
- Size and number of way of the Isolators and Switching accessories as per approved shop drawing .
- Identifications and labels.
3.0 Applicable Location
- Isolators in Plantrooms, Lift–M/C room, Fan-rooms in E1,E2,E3 & W1,W2,W3 Towers and Plantrooms in Podium areas.
- Switching accessories in all Towers & Podium areas.
4.0 Instruments.
4.1 Insulation tester.
4.2 Multimeter ( Continuity test)
Note : The instruments used for testing and commissioning shall be checked and ensured that they are calibrated and the current valid calibration reports are filed for record.
5.0 Method
- Physical check – Conduct a through visual check is conducted to ensure the
components and the connections are made correctly, and recorded on the
checklist as attached.
- Polarity check – Conduct polarity check to ensure the switch and the screw
lamp connections are correct and record on the attached format.
- Continuity check – With the help of a Multimeter the continuity of the
circuits are checked and ensured the resistance value is under the permissible
limit.
- Insulation check – Use a insulation tester to check is there any break down of
insulation between conductors, if any replace it immediately. Also record the
insulation resistance value of all the circuit in the attached format.
- Functional test of Isolators.
7.0 Records
7.2 Inspection request duly signed-off by NMX and Consultant.
8.0 Attachment
8.1 Test format.
