Industrial Cable Manufacturer

Structure of Figure 8 Self-Supporting Overhead Cable Steel Strand
Outer jacket: black polyethylene
Sling: black polyethylene
Optical fiber
Optical gel: water-proof compounding
Buffer tuber: thermoplastic material
Water blocking material: water-proof compounding
Ripcord
The central strength member: phosphatized steel wire, high-count fiber cable and extruded polyethylene.
Armored layer: steel-plastics tape
Outer jacket: black polyethylene Description of Figure 8 Self-Supporting Overhead Cable

We insert single-mode or multi-mode into the loose tube made of high modulus polyester material and filled with water proof compounds. The center of the cable core is a metallic strength core. The loose tube (and filling rope) is twisted around the central strength core to form a compact circular core, whose cracks are filled with water blocking materials. After vertical wrapping the coated steel is integrated into an 8 figure polyethylene sheath cable with steel strand.

Application of Figure 8 Self-Supporting Overhead Cable

The figure 8 self-supporting overhead cable is suitable for Long distance and interoffice communication.

Parameter 1. Technical parameter

Item	Content	Value
	Number of cable cores	24	48	96	216	432
Loose tube	Number of Loose Tube* number of cores per tube*	4*6	4*12	8*12	18*12	18*24
Reference outer diameter	mm	9.5*15.5	11.5*19.5	13.5*21.5	17.0*25.0	20.0*28.0
Central strength member	Material	Steel wire
Water blocking material	Material	Water blocking cable gel
Armored layer	Material	Corrugated steel belt
Outer sheath	Thickness(0.2mm)	1.8
Strengthen sling	Material	Steel wire/steel strand
Range of operating temperature		-40- +70
Pull	Short-term/long-term(N)	2000/800
Flatten		1500/600
*According to customer requirements, the stranded loose tube armored cable can customize other structures or cores.

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
	@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, the radius of impact cylinder 5 times1 450g12.5mm5	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 meters 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 figure 8 self-supporting overhead cable has good capability of resisting tension and temperature characteristics. The loose tube has good hydrolysis - resistant performance and high strength. The tube is filled with special ointment to make key protection for optical fiber. We use measures to ensure the water blocking performance as belowSingle steel wire central strength core
Fill the loose tube with special compound
100% cable core filled
PSP enhancing side-pressure resistance
Installation

Duct, Aerial, Directly burial

Operating Standards

YD/T 1155-2011 Figure-8 self-supporting outdoor fiber cable for telecommunication
IEC 60794-3-20-2009 Cable Section 3-20: outdoor optical cable self-supporting aerial telecommunication cable specification