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Structure of Stranded Loose Tube Air Blown Fiber Cable

Optical fiber
Optical gel: water-proof compounding
Buffer tuber: thermoplastic material
Center strength member: fiber reinforced plastics, high-count fiber cable and extruded polyethylene.
Water blocking material: water-proof compounding
Winding
Outer jacket: black polyethylene

Parameter

1. Technical parameter

Item	Content	Value
Item	Number of cable cores	24	48	96	144	288
Loose tube	Number of Loose Tube* number of cores per tube*	2*12	4*12	8*12	12*12	24*12
Loose tube	Outer diameter(mm)	1.55	1.55	1.55	1.55	1.55
Reference outer diameter	mm	5.5	5.5	6.5	8.5	10.0
Central strength member	Material	FRP
Water blocking material	Material	Water blocking cable gel
Outer jacket	Thickness(0.1mm)	1.8
Range of operating temperature		-40- +70
Pull	Short-term/long-term(G)	0.5/0.15
Flatten	Short-term/long-term(N)	450/150
*According to customers requirements, the stranded loose tube armored cable can customize other structures or cores. G is the weight of 1KM micro-cable, the unit is Newton. (N)G1KM(N)

2. Characteristic of optical fiber

		G.652.D	G.655	50/125m	62.5/125m
Attenuation	@850nm	-	-	3.0dB/km	3.0dB/km
	@1300nm	-	-	1.0dB/km	1.0dB/km
	@1310nm	0.36dB/km	0.36dB/km	-	-
	@1550nm	0.22dB/km	0.23dB/km	-	-
Band width	@850nm	-	-	500MHzkm	200MHzkm
Band width	@1300nm	-	-	1000MHzkm	600MHzkm
Fiber cutoff wavelength		1260nm	1260nm	-	-
Polarization Mode Dispersion	Single optical fiber	0.20ps/km	0.20ps/km	-	-
Link value(M=20Q=0.01%)		0.10ps/km	0.10ps/km	-	-

3. Main machinery and environment performance

Item	Inspection standard	Specified value	Requirements
Pull	IEC 60794-1-2-E1	According to technical parameter	Additional attenuation for short term:0.1dB
Flatten	IEC 60794-1-2-E3	According to technical parameter	Additional attenuation for short term:0.1dB
Impact	IEC 60794-1-2-E4	The height is 1 meter punch hammer 450g, at least 5 times1 450g 5	Additional attenuation for short term:0.03dB
Backward and forward bending	IEC 60794-1-2-E6	Loading 150N 30 times	Residual additional attenuation:0.03dB
Twisting	IEC 60794-1-2-E7	1 180 10	Residual additional attenuation:0.03dB
Temperature recycle test	IEC 60794-1-2-F1	-40 +70	Change of additional attenuation0.05dB/km
* The monitoring of all optical fiber attenuations change is operated in wavelength of 1550nm.

Features

The technology in the air blown fiber cable is designed to minimize the size and specification of cables and pipelines by optimizing the material, craft and structure of cable and pipeline. The installation of air blown fiber cable is air-blowing to meet the technology of maximizing the use of pipelines space.
Combined with micro-pipeline, the air blown fiber cable can contain five micro-pipes with a specification of 10/8 (outer diameter/inner diameter) in regular main-pipeline with specification of 40/33. So, it can improve the utilization efficiency of pore.
The outer diameter of cable is smaller than 10.5mm. The micro-cable with same number of cores is more than one times smaller than the regular cable. The stranded loose tube air blown fiber cable can be laid by air-blowing in micro-cable of corresponding specifications.