Zte ZXC10 BTSB I1, Installation Manual

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ZXC10 BTSB (V1.0) cdma2000 Base Transceiver Station Installation Manual
13-4
copper-core cable with the cross-section area 25 mm2. The -48V power cable
adopts the blue copper-core cable with the cross-section area 25 mm2. All these
cables are laid straight and connected reliably.
3. A grounding bus cable should be directly connected with an indoor ground cable
bus without connected to any intermediate equipment. The diameter of the
grounding bus cable shall be more than 50 mm2.
4. Each grounding point on the grounding copper bar can only be connected with
one piece of equipment.
5. The protective grounding cable and the AC neutral cable are separated instead of
being placed or used together.
6. The AC neutral line in the power room is independently grounded.
7. The outdoor grounding resistance shall be less than 5 ohm
8. Each cable is identified clearly and correctly.
9. The grounding cable of a power cable, when laid, should be bound separately
from other cables.
10. The remaining length of the grounding cable and power cable should be cut off
instead of coiling it up and reserving it.
11. The copper lugs on both ends of power cables and grounding cables shall be
soldered or pressed firm.
12. The power cable and the grounding cable should be of whole material and no
connector is allowed in the middle.
13. The grounding bar shall be insulated from walls and the grounding cable shall
extend as short as possible.
14. The primary power supply is correctly connected to the power supply terminals
on the rack.
15. The lifting lug of a power cable should be soldered or pressed firm and upright.
16. The power cable and copper lug must be contacted in a reliable and firm way
and are sealed with an adhesive tape. The copper lug must be connected firmly
with the power cabinet (or the BTS rack).
17. Insulated protective sleeves are well installed on both connecting terminals of