ZXC10 CBTS I2 Installation Manual
128
Confidential and Proprietary Information of ZTE CORPORATION
Outer grounding copper busbar employs a special reliable path to an
underground ground grid. The line width is more than 50 mm
2
.
For a building without a tower, antenna feeder ground at top is
connected with nearby lightning protection ground grid on the roof.
Feeder grounding cable is led from top to bottom. Separation angle
between feeder and grounding cable is no more than 15
º
.
Feeder cabling has no crisscrossing. Cables are arranged properly
without twists and turns.
Minimum bending radius of feeder is no more than 20 times the feeder
radius, and bending radius of main feeder is more than 11.81 inch.
Main feeder cabling is well planned. Main feeders within a sector are
arranged in a row and column consistently.
Two name labels are bound on both feeder terminals, to ensure that
feeders correspond to antennas with corresponding lengths on a feeder
name plate.
There is no dry joint in soldering GPS core wire.
GPS copper core and outer layer are not short-circuited.
GPS feeder connectors are tight.
Feeder Window and Waterproof Curve
Feeder window is fixed on indoor wall and feeder hole faces outdoors.
Glue injection hole is sealed upward and window boards are installed
on indoor wall.
Feeder window installed at building top is well sealed.
Necessary waterproof bents are made. Lowest point of waterproof
bend is 3.93 inch ~ 7.87 inch (100 mm ~ 200 mm) lower than lower
edge of feeder window.
Feeder cable minimum bending radius is 20 times the semi-diameter of
feeder cables. Bending radius of primary feeder cables is more than
11.81 inch (300 mm).
Three – Way Feeder Clamp
Three-way feeder clamp is fixed on outdoor cabling rack.
Intervals between feeder fixed clips are even and in same direction.
A feeder clamp is installed every 59.15 inch (1.5 m) on primary feeder.
Содержание ZXC10 CBTS O1
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