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
