24B1 Stainless Steel Tube Optical Fiber Unit

As the inventor and owner of the technology for placing optical fibers into stainless steel tubes, GL offers a range of tube sizes and fiber counts for a variety of applications. Each tube is flooded with a thixotropic filling compound and hermetically sealed to protect the enclosed fibers from environmental degradation. This product is sometimes referred to as FIST (Fiber in Steel Tube) or FIMT (Fiber in Metal Tube).

Product Name: 24B1 Stainless Steel Tube Optical Fiber Unit

Applications:

OPGW
Umbilical Cables
Downhole Cables for Oil & Gas
Towed Arrays
High Temperature Cables
Hybrid Cables
Sensor Cable

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Description

Specification

Package & Shipping

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Applications

OPGW
Umbilical Cables
Downhole Cables for Oil & Gas
Towed Arrays
High Temperature Cables
Hybrid Cables
Sensor Cable

Scope
This specification covers general requirements and performance of Stainless Steel Tube Fiber Unit，including optical characteristics and geometrical characteristics

Specification
1. Steel Tube Specification

Item	Unit	Description
Material		Stainless steel tape
Inner diameter	mm	2.60±0.05mm
Outer diameter	mm	3.00±0.05mm
Filling component		Water repellent, thixotropic jelly
Fiber number		24
Fiber types		G652D
Elongation	%	Min.1.0
Fiber excess length	%	0.5-0.7

2. Fiber Specification
The optical fiber is made of high pure silica and germanium doped silica. UV curable acrylate material is applied over fiber cladding as optical fiber primary protective coating. The detail data of optical fiber performance are shown in the following table.

G652D Fiber
Category	Description	Specification
Optical Specifications	Attenuation@1550nm	≤0.22dB/km
Optical Specifications	Attenuation@1310nm	≤0.36dB/km

3. Color Identification Of Fiber In the stainless steel tube unit Color code of fiber in the steel tube unit shall be identified referring to the following table:
Typical number of fiber: 24

Remark	Fiber No. & Color
1-12 Without color ring	Blue	Orange	Green	Brown	Grey	White
1-12 Without color ring	Red	Nature	Yellow	Violet	Pink	Aqua
13-24 With S100 color Ring	Blue	Orange	Green	Brown	Grey	White
13-24 With S100 color Ring	Red	Nature	Yellow	VIolet	Pink	Aqua
Remark: If G.652 and G.655 are used synchronously, S.655 should be laid ahead.

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Constructions

SSLT is consist of a stainless steel tube with optical fbers inside.

1. Optical fiber
2. Stainless steel tube fled with water-blocking gel

Features
A. 4, 8, 12, 24, 36, 48, Up to 72fibers
B. G652, G655, and OM1/OM2 available.
C. Different brand of optical fibers for choice.

Scope
This specification covers general requirements and performance of Stainless Steel Tube Fiber Unit，including optical characteristics and geometrical characteristics

Specification
1. Steel Tube Specification

Item	Unit	Description
Material		Stainless steel tape
Inner diameter	mm	2.60±0.05mm
Outer diameter	mm	3.00±0.05mm
Filling component		Water repellent, thixotropic jelly
Fiber number		24
Fiber types		G652D
Elongation	%	Min.1.0
Fiber excess length	%	0.5-0.7

G652D Fiber
Category	Description	Specification
Optical Specifications	Attenuation@1550nm	≤0.22dB/km
Optical Specifications	Attenuation@1310nm	≤0.36dB/km

3. Color Identification Of Fiber In the stainless steel tube unit Color code of fiber in the steel tube unit shall be identified referring to the following table:
Typical number of fiber: 24

Remark	Fiber No. & Color
1-12 Without color ring	Blue	Orange	Green	Brown	Grey	White
1-12 Without color ring	Red	Nature	Yellow	Violet	Pink	Aqua
13-24 With S100 color Ring	Blue	Orange	Green	Brown	Grey	White
13-24 With S100 color Ring	Red	Nature	Yellow	VIolet	Pink	Aqua
Remark: If G.652 and G.655 are used synchronously, S.655 should be laid ahead.

Packaging Details:
Standard reel length: 2/3km/reel. Other packing available according to client`s Request.

Sheath Mark:
The following printing(white hot foil indentation)is applied at 1meter intervals.
a. Supplier: Guanglian or as customer required;
b. Standard Code(Product Type, Fiber Type,Fiber Count);
c. Year of manufacture: 18 years;
d. Length marking in meters.

Port： Shanghai/Guangzhou/Shenzhen

Lead Time

Quantity(KM)	1-300	≥300
Est.Time(Days)	15	To be begotiated!

Note:

The Packing standard and details as above is estimated and final size & weight shall be confirmed before shipment.

The cables are packed in carton, coiled on Bakelite & steel drum. During transportation, right tools should be used to avoid damaging the package and to handle with ease. Cables should be protected from moisture,kept away from high temperature and fire sparks,protected from over bending and crushing,protected from mechanical stress and damage.

Optical Cable Factory

In 2004, GL FIBER established the factory to produce optical cable products, mainly producing drop cable, outdoor optical cable, etc.

GL Fiber now have 18 sets of coloring equipments, 10 sets of secondary plastic coating equipments, 15 sets of SZ layer twisting equipments, 16 sets of sheathing equipments, 8 sets of FTTH drop cable production equipments, 20 sets of OPGW optical cable equipments, and 1 paralleling equipment And many other production auxiliary equipments. At present, the annual production capacity of optical cables reaches 12 million core-km (average daily production capacity of 45,000 core km and kinds of cables can reach 1,500 km) . Our factories can produce various types of indoor and outdoor optical cables ( such as ADSS, GYFTY, GYTS, GYTA, GYFTC8Y, air-blown micro-cable, etc.). the daily production capacity of common cables can reach 1500KM/day, the daily production capacity of drop cable can reach max. 1200km/day, and the daily production capacity of OPGW can reach 200KM/day.