 KEXINT GCYFXTY Mini Central Tube Type Air-blown Fiber Optical Cable For Pipes 
 
Mini central tube type air-blown optical cable is to place colored 2-24 core optical fibers in the bundle tube, and extrude a layer of high-density polyethylene outer sheath.
 
 
Features:
●Special composite material loose tube, reducing the retraction of low temperature tube;
●Precisely control the excess length of the optical fiber, and the performance of the optical cable is stable;
●Unique process control to prevent sheath wrinkling during air blowing;
●Outer sheath of high-density polyethylene to increase the air blowing distance.
 
 
Product Standards:
 
IEC 60794-5,IEC 60794-1-2 or YD/T 1460-2006

 
Optical Properties:

		G.652	G.655	50/125μm	62.5/125μm
Attenuation(+20℃)	@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
Bandwidth(ClassA)	@850			≥500MHZ·km	≥200MHZ·km
Bandwidth(ClassA)	@1300			≥1000MHZ·km	≥600MHZ·km
Numerical aperture				0.200±0.015NA	0.275±0.015NA
Optical cable cut-off wavelength		≤1260nm	≤1480nm

 
Technical Parameter:

Micro cable model	GCYFXY－xxF(MTE +outer diameter)
Micro cable model	MTE1.8	MTE2.0	MTE2.3	MTE2.5	MTE2.8
Fiber count	2～4	2～4	6～12	2～12	14～24
HDPE Outer Sheath Thickness	Nominal:0.20mm,Least 0.15mm
Nominal outer diameter	1.8mm	2.0mm	2.3mm	2.5mm	2.8mm
Approximate weight	2.6 kg/km	4.0 kg/km	5.0 kg/km	6.0 kg/km	7.0kg/km
Cable Attenuation (Single Mode Fiber)	1310nm/1550nm≤0.35/0.22dB/km
Maximum pull	40N	40N	50N	60N	60N
Maximum crushing force	600N/100mm
Allowable minimum bending radius	10 times/20 times the outer diameter of the optical cable
Applicable temperature range	Storage -30～＋60℃; Installation -10～＋40℃; Operation -20～＋50℃
Cable life (estimated)	25 years

 
Air-blowing Performance:

Test Equipment	Pipeline models suitable for air delivery and corresponding typical air delivery lengths
Polyment: PRM-196 , PR140 etc. Air pressure: 13bar	Fiber count	Microtubule model 3.5/5.0mm	Microtubule model 5.5/7.0mm
	2～12 cores	800m	1500m
	14～24 cores	500m	1500m

 
Mechanical Behavior:

Item	Test reference standard		Test Results		Remark
Stretch	IEC 60794-1-2-E1 (GB/T 7424.2-E1)		Fiber strain(%)	Attachment attenuation(dB)	The short-term test pull is the maximum pull, The long-term test pull is 1/3 of the maximum pull
			Short term ≤0.3 Long-term ≤0.1	Short term: ≤0.1, No obvious strain after stress removal; Long term: none apparent
Flattening force		IEC 60794-1-2-E3 (GB/T 7424.2-E3)	Short-term crushing force: additional attenuation ≤0.05; Long-term crushing force: no obvious; After the stress is removed, the optical fiber has no obvious residual additional attenuation, No visible cracks on sheath surface		Short-term test pressure: 600N Long-term test pressure: 200N
Bending repeatedly test		IEC 60794-1-2-E6 (GB/T 7424.2-E6)	After the test: the optical fiber has no obvious residual attachment attenuation; No visible cracks in sheath		Bending radius = 20 times the microcable diameter
					load=15N
					Number of bends:25
Torsion test		IEC 60794-1-2-E7 (GB/T 7424.2-E7)	After the test: the fiber does not break and the sheath has no visible cracks, After stress relief, there is no obvious residual additional attenuation		Twist angle:±180º
					load=15N
					Number of twists:5
Winding test		IEC 60794-1-2-E11A (GB/T 7424.2-E11A)	After the test: the fiber does not break and the sheath has no visible cracks		Mandrel diameter = 20 times microcable diameter
					Number of close turns=10
					Cycles=5
All the above results are tested at 1550nm wavelength

 
Environmental performance:

Item	Testing Method	The indicators that the test should achieve
Temperature Performance	IEC 60794-1-2-F1	Fiber additional attenuation(1550nm)
Temperature Performance	IEC 60794-1-2-F1	≤0.1 dB/km
Water Permeability	IEC 60794-1-2-F5B	1m water height, 3m cable, test time 24 hours No water leakage from the other end of the micro-cable
Trickle Performance	IEC 60794-1-2-E14	The microcable is maintained at an ambient temperature of 70°C for 24 hours Microcable No Fill Compound Drip Out

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