bts installation

ONE EXAMPLE

OF

BTS INSTALLATION (Site NO.21)

Contents

1. Antenna installation ....................................................... 3

1.1 procedure ............................................................... 3

1.2 PICTURES ............................................................. 4

2. FEEDER CABLES ........................................................ 5

3. BATTERY INSTALLATION............................................ 9

4. DDF INSTALLATION................................................... 11

5. RACKS INSTALLATION.............................................. 13

6. BTS POWER CABLE INSTALLATION........................ 14

7. AC DISTRIBUTION BOX ............................................ 15

8. GROUND CABLES..................................................... 16

8.1 Inside eathing system........................................... 17

8.2 outside earthing system........................................ 18

9. PARTS OF THE INSTALLATION ACCESSORY

MATERIALS LIST ........................................................... 20

1. Antenna installation

1.1 procedure

Start

D irectional an tenna

nitia l assem b lin g of the d irec tion al an ten na in s talla tion accessories

In atalla tion sea lin g of th e an tenn a jum p er

A ntenna fix ing

E nd

A ntenna hoisting and handling

In stalla tion p osition d eterm in ation

O m ni- antenna

A djustm ent of the d irection al an tenn a d irection an d tilt an gle

I ni t i al f i x i ng of t he omni - ant enna

V ertical ad justm en t o f the om n i-an ten na

In itia l fix in g of the d irection al an tenn a

1.2 PICTURES

remark: waterproof self-conglutinant adhesive tape should be covered carefully to make sure the function available.

Antenna should be fixed well

waterproof

self-conglutina

2. FEEDER CABLES

remark: the radius should be more than 400mm

remark:

The normal distance between cable clips should be 3 steps on the cable tray. But in the picture ,it is 2 steps.

R>400mm

remark: Pay attention to the cable radius. It is should be more than 400mm.

remark: the lighting arrestor installation

remark: A: CELL 1 ; B: CELL 2; C: CELL 3 The antenna degree according to the survey report.

A B

C

3. BATTERY INSTALLATION

remark: when we install the battery, we should not put any tools or iron sticks on the battery, it is very dangerous.

remark: each battery should be connected to one sensor, pay attention to the sequence.

battery temperature sensor

remark: battery cables arrangement

4. DDF INSTALLATION

E1 CABLE AND GND CABLE

remark: one E1 cable including 8 cores,4 pairs. The SN 1,2,…8. for instance,1,5 is the first pair ,2,6 the second pair for 1E1.in the picture, the ground cable was not connected yet.

5. RACKS INSTALLATION

remark: the face of the two racks should be the same plane. In this site, there are one rectifier rack

and one BTS rack.

6. BTS POWER CABLE INSTALLATION

0V(BTS MARK:GND) :BLACK COLOR; -48V(BTS MARK:PWR):GREEN COLOR

7. AC DISTRIBUTION BOX

AC CABLE

remark: for equipment installation, we just need to consider the AC cables

8. GROUND CABLES

There are two GND systems. One for antenna and feeder cables, the other for inside equipment(inside earthing system).

8.1 Inside eathing system

Input

remark: in the shelter, the two ground bars should be connected with cable( ).this two ground bars are just for the equipment. All of the equipment ground cables should be connect to the two

Inside earthing system input bar

Connect to earthing system

ground bar. When we install the GND cables, we should confirm the cable diameter and the length and the color.

8.2 outside earthing system

antenna and feeder cable and tower earthing system

GND 1

GND 2

GND 3

OUTSIDE GND BAR

ARRESTOR GND CABLE (TO OUSIDE GSNBAR)

9. PARTS OF THE INSTALLATION

ACCESSORY MATERIALS LIST

Name Quantity Function Remark

nylon strip 300 Fix the cables

Circular exposed junction

port(copper connector)

20(70mm2) Battery and GND cables

M8×15 bolts 20 DDF

Small bolts 20 Cable slot Feeder cable GND clips

20 Feeder cable

Cable slot 6m AC cable GND cable 1m(16mm2) DDF BOX GND DC CABLE(0V) 3m(25mm2) BTS DC POWER DC CABLE(-48V) 3m(25mm2) BTS DC POWER GND cable 10m(35mm2) BTS-GND

RECTIFIER-GND(AC)YELLOW AND

GREEN DC CABLE(0V) 15(70mm2) Battery cable DC CABLE(-48V) 15(70mm2) Battery cable GND cable 10m(70mm2) BAR-BAR

RECTIFIRER-GND (DC)

Remark: other materials can be listed in the table.