ZTE Corporation ZXMBW-RA25 Manual Do Utilizador
Chapter 4 Power and Grounding Cables Installation
Confidential and Proprietary Information of ZTE CORPORATION 33
Installation Requirements
Note
:
When you install the power and grounding cables, you must
be extremely cautious to ensure your safety and that of the equipment.
Keep the following requirements in mind while installing the
cables:
cables:
n
Before you connect the power cables, mark both ends of
each cable, and attach the label at the location about 2cm
from the lug. On one end, fill in the location of the power
supply. On the other end, fill in the location of the chassis;
each cable, and attach the label at the location about 2cm
from the lug. On one end, fill in the location of the power
supply. On the other end, fill in the location of the chassis;
n
The power cables and grounding cables must be laid
separately from other cables. When they are laid side on side
with the signal cables, a horizontal spacing of 200 mm must
be maintained between them;
separately from other cables. When they are laid side on side
with the signal cables, a horizontal spacing of 200 mm must
be maintained between them;
n
Cable ties must be spaced 200 mm to protect the rocking
cable jackets from rubbing with the iron tower and thus
being damaged. Cable ties must cut flat.
cable jackets from rubbing with the iron tower and thus
being damaged. Cable ties must cut flat.
n
Measure the lengths needed before laying the cables. If a
cable is found not long enough in the laying process, replace
it with a longer one for redistribution. Do not connect or weld
it with another one to form a longer cable;
cable is found not long enough in the laying process, replace
it with a longer one for redistribution. Do not connect or weld
it with another one to form a longer cable;
n
When fixing the cable lugs, add plain washers and spring
washers to ensure secure fixation and good contact between
the cable and copper bar, as shown in Figure 24.
washers to ensure secure fixation and good contact between
the cable and copper bar, as shown in Figure 24.
F
I G U R E
2 4
P
O W E R
C
A B L E
C
O N N E C T I O N
M
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1
1. Copper busbar 2. Plain washer 3. Nut 4. Bolt 5. Lug 6. Spring
washer
If one wiring post needs to be connected with two or more
cables, the lugs of the cables cannot be installed in an
cables, the lugs of the cables cannot be installed in an