Commissioning
PRS-7367 329
Inspect the surface of the device. There shall not be scratches, bumps, groove marks, rust,
deformation and other defects that affect the quality and appearance;
Check the device panel keyboard is complete, flexible operation, the LCD is clear, the indicator
shows normal;
Uncharged metal part of the device should be connected as one, and reliable grounding;
Check the cubicle shell of the device must be grounded reliably;
10.5.3 Insulation Check
Disconnect the weak electric link with other devices and short circuit the AC voltage circuit terminal,
AC current circuit terminal, DC circuit terminal and signal circuit terminal inside the cubicle terminal
block, and measure the insulation resistance value using the tester whose open circuit voltage is
500V. Insulation should meet the following requirements:
Device independent circuit and exposed conductive parts, 500V megger insulation resistance
measured value should be no less than 100MΩ;
Between electrically disconnected independent circuits, 500V megger insulation resistance
measured value should be no less than 100MΩ;
After the insulation test is completed, make sure that all external wiring is properly connected.
10.5.4 External Wiring Check
External protection wiring should be consistent with the design drawings; Internal and external
wiring on the terminal block and cable marking on it is correct, complete, and consistent with the
drawings; Secondary circuit wiring should be neat and beautiful, solid and reliable;
All secondary cables and terminal blocks wiring connection should be solid. Cable mark should be
complete, correct and clear;
The correct mark should be attached to the optical fiber (including optical cable, pigtail, jumper)
and both ends of the device port. Such fiber-optic annotation should include the optical fiber
number, destination. The starting point of the fiber should indicate the cubicle number. The content
of the port mark should include the port number and destination. The starting point of the port
should include the cubicle number, switch number and port number.
10.5.5 Test Category
The following tests are necessary to ensure the normal operation of the equipment before it is first
put into service.
These tests are performed for the following hardware to ensure that there is no hardware defect.
Defects of hardware circuits other than the following can be detected by self-monitoring when the
power supply is energized.
• User interfaces test
• Binary input circuits and output circuits test
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