Chapter 6 Cable Installation
a.
If the length of grounding cable is less than 5m for all cabinets: interconnection
cable is not required, different cabinets connects to grounding bar via grounding
cable, and the section area of the grounding cable is less than 25 sq.mm.
b.
If all cabinets are in a row, and the length of grounding cable is longer than 5m for
some or all cabinets: all cabinets shall be handled as combined cabinets, that is,
connect right PE post at the top of neighboring cabinet by using interconnection
cable, the section area of cabinet interconnection cable is less than 25 sq.mm,
and its length is less than 1m. Select a cabinet with the shortest distance from
room grounding bar, connect the cabinet to grounding bar via a grounding busbar
(a yellow-green grounding cable with section area no less than 35 sq.mm).
Caution!
The length of this grounding busbar can not exceed 10m.
If the length of
grounding busbar exceeds 10m after combining, the user shall reconstruct
grounding network in the equipment room.
c.
When the cabinet is distributed in multiple bars, the cabinet rows do cabinet
grounding and inter-cabinet grounding interconnection based on above
requirements.
Caution!
The cabinets in different rows can not do combination action.
6.2.3.2 Protective Grounding of DC Power Distribution
The protection ground cable of the DC power distribution cabinet should be directly
connected to the grounding strap of the equipment room. Protective grounding cable
shall be yellow-green cables with plastic insulation cooper core and section area no less
than 35 sq.mm.
6.2.3.3 Connection with Other Equipment Grounds
In some circumstances, the ZXG10 iBSC equipment needs to be connected with the
protection grounds of other equipment.
1.
Connection between the ZXG10 iBSC equipment and the distribution frame ground
The connection between the ZXG10 iBSC equipment and the distribution frame ground
should be handled according to the specific equipment room conditions.
a.
The equipment room is designed and constructed in accordance with related
specifications and has a good grounding grid, with multiple cooper bars.
6-11
SJ-20110531095035-004|2011-10-28 (R2.0)
ZTE Proprietary and Confidential
Содержание ZXG10 iBSC
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