Table 1 lists the post-installation items to be checked.
No. |
Check Item |
Method |
|---|---|---|
1 |
The installation position of the switch meets the requirement in the associated engineering design document. |
Observe |
2 |
The surfaces of the switch are clean and smooth, free from fingerprints, stains, and scratches. |
Observe |
3 |
Components are correctly installed in the cabinet. No component is loose or damaged. |
Observe |
4 |
All screws are correctly tightened. |
Observe |
5 |
There are no objects on the chassis. |
Observe |
6 |
Leave at least 50 mm (2.0 in.) clearance around the switch for heat dissipation. Do not install a switch with its air intake vent facing or close to the air exhaust vent of other devices. |
Measure |
7 |
Signal cables are not damaged or broken and have no splices. |
Observe |
8 |
Signal cable connectors are clean, intact, and correctly connected. Wires of each signal cable are securely clamped in the connectors. |
Observe |
9 |
Each signal cable has labels attached at both ends, with clear text facing the same direction. |
Observe |
10 |
The power cables and ground cable are all copper wires, and are not spliced or damaged. |
Observe |
11 |
The power cables and ground cable are routed in compliance with the associated engineering design document and meet the power distribution requirements. |
Observe |
12 |
The power cables and ground cable are securely connected in compliance with regulations. Ground cable lugs are protected with spring washers on flat washers. |
Observe |
13 |
The power cables and ground cable are separated from the signal cables. |
Observe |
14 |
The power cables and ground cable are routed straightly and bundled neatly. Sufficient slack is left at the bent part of the cables. |
Observe |
15 |
Optical fibers routed out of the cabinet are protected. For example, they are routed in a corrugated pipe or trough. |
Observe |
16 |
The bend radius of optical fibers is 20 times larger than their diameter. Generally, the bend radius is larger than 40 mm. |
Measure |
17 |
Optical fibers are bundled neatly using binding tape with suitable force. |
Observe |
18 |
No signal cables are routed near the heat vents on the cabinet. |
Observe |
19 |
Cables in the cabinet do not cross each other and cables outside the cabinet are bundled. |
Observe |