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Loose Tube core-metallic-jelly Filled Cable

LG lightguide cables will provide excellent transmission performance and protection of the fibers in a variety of field environments. Various sheath designs are available for buried, underground or aerial applications.

APPLICATIONS

* Long haul communication system
* Junction communication system
* Subscriber network system
* Local area network system

FEATURES

* Single mode or multimode fiber
* Excellent optical, mechanical and environmental performance
* High strength-to-weight Ratio
* Standard Fiber Counts : 2-144

CABLE CROSS SECTION

OPTICAL FIBER
FILLING A suitable water-blocking compound
LOOSE TUBE Thermoplastic material
CENTRAL STRENGTH MEMBER Solid or stranded galvanized steel wires
CABLE CORE PROTECTION Plastic tapes helically or longitudinally
MOISTURE BARRIER One laminated aluminum tape longitudinally
OUTER SHEATH Black polyethylene
FILLER Thermoplastic cylinder which can replace a tube in the cable strand
INNER SHEATH Black polyethylene
MECHANICAL PROTECTION
-Type A : by steel wire armouring
-Type B : by steel tape armouring

CONSTRUCTION

(In case of 36 fibers)

ITEMS
UNIT
TYPE OF CABLES
UNARMOURED
ARMOURED
STEEL TAPE
STEEL WIRE
USE
-
DUCT
BURIED
BURIED
NO. OF TUBES
EA
6
6
6
NO. OF FIBERS PER TUBE
EA
6
6
6
STRENGTH MEMBER
TYPE
-
STEEL WIRE
STEEL WIRE
STEEL WIRE
DIA.
MM
NOM.2.0
NOM.2.0
NOM.2.0
CORE DIA.(NOMINAL)
MM
7.5
7.5
7.5
INNER SHEATH THICK(NOM.)
MM
-
1.0
1.5
OUTER SHEATH THICK(NOM.)
MM
1.5
1.5
2.0
ARMOURING TYPE
-
-
CORR. STEEL TAPE
CORR. STEEL TAPE
OUTER DIA.(NOMINAL)
MM
12
16
20
WEIGHT(APPROX.)
KG/KM
140
270
600
DELIVERY LENGTH(NOM.)
KM
1~4
1~4
1~2

STANDARD LOOSE TUBE SIZE

CLASSIFICATION
SMALL SIZE
MEDIUM SIZE
LARGE SIZE
NOMINAL OUTER DIAMETER(MM)
1.5
2.2
3.0
MAX.NO.OF FIBERS PER TUBE
1
6
12
MAX.NO.OF FIBERS IN CABLE
12
36
144

Geometric & optical properties of optical fibers

MFD
CLADDING DIAMETER
ATTENUATION (DB/KM)
DISPERSION (PS/NM.KM)
CUT-OFF WAVELENGTH (NM)
1.310
1.550
1.285~1.330
1.550
2M
9.5
125
0.38
0.25
3.2
18
1.100~1.330

Mechanical & environmental characteristics of cable

ITEMS
UNIT
TYPE OF CABLES
UNARMOURED
ARMOURED
STEEL TAPE
STEEL WIRE
MAXIMUM TENSILE LOAD
KG
270
270
1.000
MINIMUM BENDING RADIUS
- UNDER NO LOAD
- UNDER LOAD

MM
MM

120
240

160
320

200
400
CRUSH RESISTANCE
KG/CM
20
40
40
OPERATING TEMP.RANGE
 
-40~+70
-40~+70
-40~+70

IDENTIFICATION OF OPTICAL FIBERS

NO.OF FIBER
COLOR
NO.OF FIBER
COLOR
1
BLUE
7
BROWN
2
ORANGE
8
BLACK
3
GREEN
9
WHITE
4
RED
10
GRAY
5
YELLOW
11
AQUA
6
VIOLET
12
PINK

ORDERING INFORMATION

LG-LT-XX1-XX2-X3-XXXX4-X5
XX1 CORE CODE : - 00 : Single fiber per tube, Metallic CSM - 10 : Six fibers per tube, Metallic CSM - 20 : Twelve fibers per tube, Metallic CSM
XX2 SHEATH CODE : - 00 : All dielectric sheath - 02 : Moisture barrier, PE sheath - 04 : Inner PE sheath, Steel tape armour, Outer PE sheath - 05 : Moisture barrier, Inner PE sheath, Steel wire armour, Outer PE sheath
X3 FIBER CODE : - 0 : Single mode fiber - 9/125§­ - 1 : Multimode fiber -50/125§­ - 2 : Multimode fiber -62.5/125§­
XXXX4 NUMBER OF FIBERS (0002~0144) X5 COPPER CODE : Number of copper conductors contained in the optical cable (0~4 pairs)

 

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