The central stainless steel tube is surrounded by single or double layers of aluminum clad steel wires(ACS) or mix ACS wires and aluminum alloy wires. are the most widely used cables ,their design is fully adapted to the most common electric line needs.

Optical Fiber Characteristics

The optical, geometrical, mechanical and environment characteristics of the ITU-T G.652.D optical fiber shall be accordance with below table:

Characteristics			Specified Values	Units
Optical Characteristics
Mode field diameter		at 1310nm	9.1±0.5	µm
		at 1550nm	10.3 ± 0.7	mm
Attenuation coefficient		at 1310nm	≤0.36	dB/km
		at 1550nm	≤0.23	dB/km
Attenuation non-uniformity			≤0.05	dB
Zero dispersion wavelength ( λ0)			1300 ～1324	nm
Max zero dispersion slope (S0max)			≤0.092	ps/(nm2·km)
Polarization mode dispersion coefficient(PMDQ)			≤0.2
Cut-off wavelength (λcc)			≤1260	nm
Dispersion coefficient		1288～1339nm	≤3.5	ps/(nm·km)
		1550nm	≤18	ps/(nm·km)
Effective group index of refraction (Neff)		at 1310nm	1.466	－
		at 1550nm	1.467	－
Geometric characteristic
Cladding diameter			125.0±1.0	µm
Cladding non-circularity			≤1.0	%
Coating diameter			245.0±10.0	µm
Coating-cladding concentricity error			≤12.0	µm
Coating non-circularity			≤6.0	%
Core-cladding concentricity error			≤0.8	µm
Cladding / coating concentricity error			≤12.0	µm
Mechanical characteristic
Curling			≥4	m
Proof stress			≥0.69	GPa
Coating strip force	Average value		1.0-5.0	N
	Peak value		1.3-8.9	N
Macro bending loss	Ф60mm, 100 circles, at 1550nm		≤0.05	dB
	Ф32mm, 1 circles, at 1550nm		≤0.05	dB

Specification of OPGW

Fiber and Loose Tube Color Identification

The individual fiber and loose tubes shall accordance with standard TIA/EIA-598-A and the color code as below.

Steel tube 1 (No.1-12 fibers) : Single mode optical fiber (SM)

Fiber Colors

Steel tube 2 (No.13-24 fibers) : Single mode optical fiber (SM)

One black tracer (50mm pitch)

Steel tube 3 (No.25-36 fibers) : Single mode optical fiber (SM)

One black tracer (100mm pitch)

Steel tube 4 (No.37-48 fibers) : Single mode optical fiber (SM)

One black tracer (150mm pitch)

Packing and Shipping

The OPGW shall be tightly and uniformly wound on a strong wood-iron reel which conforms to ANSI/AA 53-1981 or equal. The reel shall be lagged with stout wood-iron battens so as to prevent the OPGW from damage in ordinary shipping, handling, storage and stringing operations.

According to length of cable, we choose different type reel (D,d,b,w1,w2) for loading cable.

Dongguan TW-SCIE Co., Ltd. is a high-tech enterprise specializing in the research and development, production, processing, sales and network engineering of optical fiber communication products, and has independent import and export rights. The company has a group of loyal, dedicated, wise, strong professional and technical talents, committed to tracking the world's advanced optical communication products development and application. The company R & D, production, management of the main products are optical fiber, optical cable, optical transceiver, optical MODEM and so on. Products are widely used in communication, electric power, railway, military and other related departments, exported to France, India, Singapore, Malaysia and other countries.

Dear Valuable Customer,

Thank you for choosing our company. Your choice is our direction and motivation.

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TW-SCIE

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Established in 2002, Dongguan TW-SCIE Co., Ltd. is a comprehensive high-tech enterprise that integrates R&D, manufacture, sale of fiber optic communication products and network engineering. We have two manufacturing bases, one is in Donguan, Guangdong which occupies about 30000m² with 20000m² production factory, and the other is in Deyang, Sichuan which occupies 40000m² with 20000m² production factory. The annual production capacity of the two bases are 20 million core kilometers.

We are dedicated in R&D and application of fiber optic products and have obtained 5 invention patents and 58 utility model patents. The main products are indoor/outdoor fiber optic cable, ADSS, OPGW, FTTH drop cable, patch cord, pigtail and related accessories. The products conform to the China National Standard strictly and have obtained certificates of Anatel, CE, RoHs, Reach, ISO9001, ISO14004, OHSAS1801 and so on.

We boosts more than 300 staff as well as more than 50 sets of production and testing lines. Relying on advanced equipment, mature technology and good management, we always provide high quality products and best services to our customers. We are the qualified supplier to most of the famous communication companies in China such as China Mobile, China Telecom, China Unicom, Sinopec, State Grid, etc; at the same time, we have sold our products to Europe, Africa, Middle East, South America, Southwest of Asia and become the qualified supplier to the local telecom companies.

With the dream “to be the leader of fiber optic communication”, we always keep in surpassing ourselves to create new glorious. We commit to provide our esteemed customers with high-quality product, on time delivery and best service. Wish to cooperate with the friends both domestic and overseas.