Normal Central Tube Air Blown Micro Cable 2-24 Cores

1. colored optical fiber

2. Fiber paste

3. Loosen the casing

4. Non-metallic reinforced yarn

5. HDPE outer sheath

Micro cable model

GCYFXY－XB1.3

Optical fiber core number

2～12

14～24

Thickness of HDPE outer sheath

Nominal: 0.50mm, minimum: 0.40mm

Nominal outer diameter

4.0mm

4.5mm

Approximate weight

12 kg/km

16 kg/km

Maximum pulling force

120N

150N

Maximum crushing force

1000N/100mm

Minimum allowable static bending radius

10 times outer diameter of optical cable

Minimum allowable dynamic bending radius

20 times outer diameter of optical cable

Applicable temperature range

Store at-40 ~+60℃; Installation-10 ~+40℃; Run at-30 ~+50℃

Optical cable life (estimation)

25 years

Optical fiber type

SM G652B/D, G657 series

Optical fiber attenuation

≤0.35dB/km @1310nm， ≤0.22dB/km @1550nm

testing equipment

Type of pipeline suitable for gas transmission and corresponding typical gas transmission length

Poliment: PRM-196, PR140, etc. Air pressure: 15bar

Optical fiber core number

Microtubule model

5.5/7.0mm

Microtubule model

8.0/10.0mm  

2 ~ 12 cores

1000m

1500m

14 ~ 24 cores

800m

1300m

project

Test reference standard

test result

remarks

stretching

IEC 60794-1-2-E1（GB/T 7424.2-E1）

Optical fiber strain (%)

Attachment attenuation (dB)

The short-term test tensile force is the maximum tensile force,

Long term testing tensile strength is

Short-term ≤0.3 long-term ≤0.1

Short-term: △≤0.1,

No significant strain observed after stress removal; Long term: No obvious△

Crushing force

IEC 60794-1-2-E3（GB/T 7424.2-E3）

Short-term crushing force: additional attenuation ≤ 0.05;Long term flattening force: no significant △;After removing stress, there is no significant residual additional attenuation in the optical fiber,No visible cracks on the surface of the sheath

Short-term test pressure: 1000N Long-term test pressure: 600N

Repeated bending

test

IEC 60794-1-2-E6（GB/T 7424.2-E6）

After testing: the optical fiber has no obvious residual accessory attenuation;

No visible cracking on the sheath

Bending radius =20 times the diameter of micro cable

Load =30N

Bending times: 25

torsion test

 IEC 60794-1-2-E7（GB/T 7424.2-E7）

After the test, the optical fiber is not broken and the sheath is visually cracked.

After stress relief, there is no significant residual additional attenuation

Torsion angle: 180

Load =40N

Torsion times: 5

Winding test

IEC 60794-1-2-E11A（GB/T 7424.2-E11A）

After the test: the optical fiber does not break and the sheath can be cracked without eyesight

Mandrel diameter =20 times the diameter of micro cable

Close winding number =10

Number of cycles =5

All the above results are tested at the wavelength of 1550nm

project

test method

Indicators to be achieved by testing

Temperature performance

IEC 60794-1-2-F1

Additional attenuation of optical fiber (1550nm)

≤0.1 dB/km

Water permeability

IEC 60794-1-2-F5B

1m water height, 3m cable. After 24 hours, the other end of the micro cable seeps out without water.

Trickle performance

IEC 60794-1-2-E14

The micro cable was kept at 70℃ for 24 hours

Dropping out of unfilled and coated composites in micro cables

NO.

one

2

three

four

five

six

seven

eight

nine

10

11

12

Color

orchid

orange

green

palm

ash

white

red

black

yellow

purple

pink

dark green

NO.

13

14

15

16

17

18

19

20

21

22

23

24

Color

blue

orange

green

palm

ash

white

red

inherent/true qualities

yellow

purple

pink

dark green

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Optical fiber core number

segment length

（

Tray size

Φ×W

(mm)

Packing size

H×L×W

(mm)

2 ~ 12 cores

2000

500×450

540×450×705

4000

600×450

640×450×805

14 ~ 24 cores

2000

600×450

640×450×805

4000

700×570

740×570×905