09
L2 Managed Switch
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Requirements for the distance between Ethernet cable and other pipelines are shown
in the table.
Other Pipelines
Ethernet Cable
Min Parallel Net Length
L (mm)
Min Parallel-overlapping Net Height
H (mm)
Down-conductor 1000 300
PE 50 20
Service pipe 150 20
Compressed air pipe 150 20
Thermal pipe (not wrapped) 500 500
Thermal pipe (wrapped) 300 300
Gas pipe 300 20
The two diagrams below demonstrate parallel net length and parallel-overlapping net
height.
Note:
The above minimum net length/height is required when metal raceway is not
used. If any requirements cannot be met, you can add a steel tube or metal raceway
for shielding.
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Requirements for the distance between Ethernet cable and high-power electric
devices are in following tables.
Cable Pave Way
Min Parallel
Length (mm)
<2kVA
powerline
Parallel cabling 130
One is in the grounded metal raceway or metal pipe 70
The both are in the grounded metal raceway or metal pipe 10
2~5kVA
powerline
Parallel cabling 300
One is in the grounded metal raceway or metal pipe 150
The both are in the grounded metal raceway or metal pipe 80
>5kVA
powerline
Parallel cabling 600
One is in the grounded metal raceway or metal pipe 300
The both are in the grounded metal raceway or metal pipe 150
Device Min Distance (m)
Switch case 1.00
Transformer room 2.00
Elevator tower 2.00
Air-conditioner room 2.00
Lightning Protection
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