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User Guide
8
2.3 Connecting to Protective Grounding Line
Proper connection of protective grounding line is important for lightning protection and anti-interference.
Proper connection is as follows:
2.3.1 With Grounding Bar
Connect the yellow-green color protective grounding cable to binding post on the grounding bar and fix
the screws.
Figure 2-4 Installation with grounding bar
(1) AC power input
(2) Grounding terminal connection
(3) Grounding cable protection
Note-------------------------------------------------------------------------------------------------------------------------------
Firefighting hoses and building lightning rods are not proper options for grounding bar. The grounding
cable on the switch should be connected to the grounding bar in the IT room.
-------------------------------------------------------------------------------------------------------------------------------------------
2.3.2 Without Grounding Bar
A. With mud land nearby and allowed to bury grounding bar.
Bury an angle iron or steel pipe (≥0.5m) into the mud land. The yellow-green color protective grounding
cable should be welded to the angle iron or steel pipe and the welding point should be embalmed.
Figure 2-5 Installation with buried grounding bar
(1) AC power input
(2) Grounding terminal connection
(3) Grounding cable protection
(4) Earth
(5) Grounding bar
B. Not allowed to bury grounding bar.
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