Central Loose Tube Cable GYXTW

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Central Loose Tube Cable GYXTW

Model: GYXTW
Central Loose Tube Cable GYXTW, 2~12 fibers, jelly filled and fiber contained central loose tube, copolymer coated steel tape, two parallel steel wires 1.2mm, PE outer sheath, G652D SM fiber, detailed specification on your request.
Central Loose Tube Cable GYXTW, 2~12 fibers, jelly filled and fiber contained central loose tube, copolymer coated steel tape, two parallel steel wires 1.2mm, PE outer sheath, G652D SM fiber, detailed specification on your request.
Features :                                                                                                                  
◇ Low dispersion and attenuation
◇ Proper design, precise control for fiber excess length and distinct stranding process render the cable excellent mechanical and environmental properties
◇ The armoring of corrugate steel tape make cable have nice properties of moisture resistance and crush resistance
◇ With small cable diameter, light cable weight, easily to lay
◇ Operating Temperature : -40~+60 ℃
Description
Single jelly compound filled loose tube containing up to 24fibers color code as per color coding scheme. surrounded by moisture barrier bonded to polyethylene incorporating two steel wire strength elements. This cable is suitable for outdoor duct, direct burial or aerial applications.
Parameter

No. of cable

2~8

10~12

Fiber Model  

G.652D

Strength Member

Material

Steel Wire

Diameter mm

0.8

Loose Tube

Material

PBT

Diameter±0.06mm

1.8

2.0

Thickness±0.03mm

0.28

0.32

Water Blocking layerMaterial

Water Blocking Tape

Armoring

Material

Steel Strip

Thickness±0.05mm

0.20

Outer SheathMaterial

MDPE

Cable Diameter±0.2mm

7.7

7.9

Cable Wetght±5kg/km

56

58

Min. bending radius

Without Tension

10.0×Cable-φ

Under Maximum Tension

20.0×Cable-φ

Temperature range

Installation

-20~+60

Transport&Storage

-40~+70

Operation

-40~+70

Fibre Colours

No.

1

2

3

4

5

6

Color

Blue

Orange

Green

Brown

Gray

White

No.

7

8

9

10

11

12

Color

Red

Black

Yellow

Violet

Pink

Aqua

The properties of single mode optical fiber (ITU-T Rec. G.652.D)

Item

Specification

Fiber type

Single mode

Fiber material

Doped silica

Attenuation coefficient

@ 1310 nm

@ 1383 nm

@ 1550 nm

@ 1625 nm

 

£ 0.35 dB/km

£ 0.30 dB/km

£ 0.21 dB/km

£ 0.24 dB/km

Point discontinuity

£ 0.05 dB

Cable cut-off wavelength

£ 1260 nm

Zero-dispersion wavelength

1300 ~ 1324 nm

Zero-dispersion slope

£ 0.092 ps/(nm2.km)

Chromatic dispersion

@ 1288 ~ 1339 nm

@ 1271 ~ 1360 nm

@ 1550 nm

@ 1625 nm

£3.5 ps/(nm. km)

£5.3 ps/(nm. km)

£18 ps/(nm. km)

£22 ps/(nm. km)

PMDQ (Quadrature average*)

£0.2 ps/km1/2

Mode field diameter @ 1310 nm

9.2±0.4 um

Core / Clad concentricity error

£ 0.5 um

Cladding diameter

125.0 ± 0.7 um

Cladding non-circularity

£1.0%

Primary coating diameter

245 ± 10 um

Proof test level

100 kpsi (=0.69 Gpa), 1%

Temperature dependence

0oC~ +70oC @ 1310 & 1550nm

£ 0.1 dB/km

Application

NO.

Item

Requirement

1

Allowable Tensile Strength

1200 N

2

Allowable Crush Resistance

Short Term

1000 (N/100mm)

Long Term

300 (N/100mm)

Main mechanical & environmental performance test

Item

Test Method

Acceptance Condition

Tensile Strength

IEC 794-1-2-E1

- Load: Short term tension

- Length of cable: about 50m

- Fiber strain £ 0.33%

- Loss change £ 0.1 dB @1550 nm

- No fiber break and no sheath damage.

Crush Test

IEC 60794-1-2-E3

- Load: Short term crush

- Load time: 1min

- Loss change £ 0.05dB@1550nm

- No fiber break and no sheath damage.

Impact Test

IEC 60794-1-2-E4

- Points of impact: 3

- Times of per point: 1

- Impact energy: 5J

- Loss change £ 0.1dB@1550nm

- No fiber break and no sheath damage.

Temperature Cycling Test

YD/T901-2001-4.4.4.1

- Temperature step:

+20oC→-40oC→+70oC →+20oC

- Time per each step: 12 hrs

- Number of cycle: 2

- Loss change £ 0.05 dB/km@1550 nm

- No fiber break and no sheath damage.