Air Blown Fiber Unit (ABF )-Air-Blow Micro Cable-Hunan GL Technology Co., Ltd-Hunan GL Technology Co., Ltd. (GL) is a 19 years experienced leading manufacturer for fiber optic cables & Accessories in China.

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Air Blown Fiber Unit (ABF )

The ABF is the product that with small diameter, lightweight, highly flexibility and proper stiffness, and it can be blown into the microduct of 5.0/3.5mm. The fibres are coated with a soft acrylate resin which provides excellent dimensional and thermal stability to cushion the fibres, in addition, the resin can be easily stripped in connecting the fibres. The outer sheath is a thermoplastic that is of low friction. The surface of the sheath is designed with special grooves, compared to the surface of the traditional optical fibre cable, it provides not only the high level of mechanical protection, but also the perfect blowing performance.

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The ABF is the product that with small diameter, lightweight, highly flexibility and proper stiffness, and it can be blown into the microduct of 5.0/3.5mm. The fibres are coated with a soft acrylate resin which provides excellent dimensional and thermal stability to cushion the fibres, in addition, the resin can be easily stripped in connecting the fibres. The outer sheath is a thermoplastic that is of low friction. The surface of the sheath is designed with special grooves, compared to the surface of the traditional optical fibre cable, it provides not only the high level of mechanical protection, but also the perfect blowing performance.

Feature:

Smaller diameter

Frees up capital to expand network and client base

Network design flexibility

5/3.5mm microduct suitable

Easy to upgrade

Greater blowing distance

Fiber: G.G652D, G.657A1, G.657A2

Standards:

Unless otherwise specified in this specification, all requirements shall be mainly in accordance with the following standard specifications.

Optical fiber:ITU-T G.651、G.652、G.655、G.657 IEC 60793-2-10、IEC 60793-2-50

Optical Cable:IEC 60794-1-2、IEC 60794-5

Note: It is recommended that the structure of 2 fibers unit consist of 2 filled fibers, for it is proved that this structure is better in the blowing performance and the fiber separability than that of one with zero or one filled fiber

Specification:

Fiber count (F)	Nominal diameter (mm)	Nominal weight (kg/km)	Min. bend radius (mm)	Temperature (℃)
2	1.15±0.05	1	50	-30 to +60
4	1.15±0.05	1	50
6	1.35±0.05	1.3	60
8	1.50±0.05	1.8	80
12	1.65±0.05	2.2	80

Blowing Test:

Fiber count (F)	Blowing machine	Suitable microduct (mm)	Blowing pressure (bar)	Blowing distance (m)	Blowing time (min)
2	PLUMETTAZ UM25 ERICSSON F CATWAY FBT-1.1	3/2.1 or 5/3.5	7/10	500/1000	10/18
4		3/2.1 or 5/3.5		500/1000	10/18
6		5/3.5		500/1000	10/18
8		5/3.6		500/1000	13/18
12		5/3.5		500/800	15/20

Attenuation:

fiber Type	SM G.652D、G.655、G.657	MM 62.5/125
Attenuation	0.38dB/km max @1310nm 0.26dB/km max @1550nm	3.5dB/km max @850nm 1.5dB/km max @1300nm

Mechanical Performance:

Test	Standard	Parameters	Test Results
Tension	IEC 60794-1-2-E1	Load is 1×W	fiber strain ≤0.4% at MAX Additional attenuation ≤0.05dB fiber strain ≤0.05% after test
Bend	IEC 60794-1-2-E11A	Diam 40mm×3turns 5 cycles at 20℃	Additional attenuation ≤0.05dB,after test
Crush	IEC 60794-1-2-E3	100 N, 60s	Additional attenuation ≤0.05dB,after test
All optical testing proceeded at 1550 nm

Environment Performance:

Test	Standard	Parameters	Test Results
Temperature Cycle	IEC 60794-1-2-F1	+20°C, -40°C, +60°C, (3 cycles)	Absolute attenuation ≤0.5dB/km,during test Additional attenuation ≤0.1dB/km, during and after test
Water Soak	IEC 60794-5	1000 hours in water, 18℃～22℃	(Test after temp cycle) ≤0.07dB/km Change compared to start value
Damp Heat Cycle	IEC 60068-2-38	25°C, 65°C, 25°C, 65°C, 25°C, -10°C, 25°C	Absolute attenuation ≤0.5dB/km,during test Additional attenuation ≤0.1dB/km, during and after test
All optical testing proceeded at 1550 nm

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