Industrial Cable Manufacturer

Description of Stranded Loose Tube Armored Cable

We insert single-mode or multi-mode fiber into a loose tube made from high modulus polyester material and filled with water proof compounds. The center of the cable core is a metallic strength core. For the cables with a certain number of cores, the metallic strength core sheathed with polyethylene (PE). The buffer tuber (and filling rope) is twisted around the central strength core to form a compact circular core, whose cracks are filled with water blocking materials. An extruded polyethylene sheath is inserted into the cable after the aluminum polyethylene laminate is vertically wrapped.

Application of Stranded Loose Tube Armored Cable (GYTA)

The stranded loose tube armored cable is suitable for Long distance and interoffice communication.

Parameter 1. Technical parameter

Item	Content	Value
	Number of cable cores	24	48	96	144	288	432	576
Loose Tube	Outer diameter	1.8	2.5	2.5	2.5	2.2	2.8	2.8
	Number of Loose Tube* number of cores per tube	4*6	4*12	8*12	12*12	24*12	36*12	24*24
Reference outer diameter	mm	9.0	11.0	13.5	17.0	18.0	19.0	21.5
Central strength member	Material	Steel wire
Water blocking material	Material	Water blocking cable gel
Damp-proof layer	Material	/
Armored layer	Material	Corrugated aluminium belt
Outer sheath	Thickness(±0.2mm)	1.8
Range of operating temperature	℃	-40- +70
Pull	Short term /long term(N)	1500/600
Flatten		1000/300
*According to customer's requirements, the stranded loose tube armored cable can customize other structures or cores.

2. 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 50 times	Residual additional attenuation:≤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 meter ±180° 10 times	Residual additional attenuation:≤0.03dB
Temperature recycle test	IEC 60794-1-2-F1	-40℃ +70℃	Change of additional attenuation:≤0.05dB/km
* The monitoring of all optical fiber attenuation's change is operated in wavelength of 1550nm.

Features
We control the optical fiber's surplus length accurately to ensure the capability of resisting tension and temperature characteristics.
The material of loose tube has good hydrolysis - resistant performance and high strength. The tube is filled with special ointment to make key protection for optical fiber.
The polyethylene sheath features good anti ultraviolet radiation performance.
We use the following measures to ensure outstanding water blocking performance.Single steel wire central strength core
Fill special water-proof compounding in the loose tube;
100% cable core filling
APL moisture-barrier
Operating standard

YD/T 901-2009 stranded outdoor communication optical cable
IEC 60794-1-1-2011 cable section 1-1