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Flame retardant optical cable for coal mine (MGTSV-steel wire)

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Product Description

Flame retardant optical cable for coal mine (MGTSV-steel wire).

Product Description:

1. Optical fiber

2. Fiber paste: water-blocking compound

3. Loose tube: thermoplastic material

4. Center reinforcements: phosphating steel wire, large core number optical cable, extruded polyethylene.

5. Water-blocking material: water-blocking filler

6. Armor layer: steel-plastic composite belt

7. Inner sheath: black polyethylene

8. Armored steel wire

9. Outer sheath: blue flame retardant sheath

The structure of the fiber optic cable is that a 250μm optical fiber is sleeved into a loose tube made of high-modulus material, and the loose tube is filled with a waterproof compound. In the center of the core is a metal reinforcing core, and for some core cables, a layer of polyethylene (PE) is squeezed out of the metal reinforcing core. The loose tube (and the filling rope) are twisted around the central reinforcing core to form a compact and round core, the gaps in the core are filled with water-blocking filler, and a layer of armored steel wire is twisted after being longitudinally wrapped with double-sided plastic-coated steel tape (PSP). The flame retardant sheath is then extruded into a cable.

Features and applications

● Good mechanical properties and temperature characteristics;

● Special sheath material has excellent flame retardant performance;

● Thin round steel wire armor makes the fiber optic cable have stronger tensile performance;

● Pipeline installation, overhead installation, direct burial installation and vertical laying.

Fiber characteristics


G.652. D

G.655

50/125μm

62.5/125μm

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

-

-

bandwidth

@850nm

-

-

≥500MHz·km

≥200MHz·km

@1300nm

-

-

≥1000MHz·km

≥600MHz·km

The fiber optic cable is up to the wavelength


≤1260nm

≤1260nm

-

-

Polarization mode dispersion

Single fiber

≤0.20ps/√km

≤0.20ps/√km

-

-

Link value (M=20, Q=0.01%)

≤0.10ps/√km

≤0.10ps/√km

-

-

Technical parameters

project

content

numeric value

Number of fiber cores

24

48

72

96

120

144

Loose tubes

Number of loose tubes * number of cores per tube

4*6

4*12

6*12

8*12

10*12

12*12


Loose tube outer diameter mm

1.8

2.5

2.5

2.5

2.5

2.5

Refer to the outer diameter

mm

12.0

13.5

14.5

16.0

17.5

19.5

Center reinforcements

material

steel wire

Water-blocking materials

material

Water-blocking cable paste

Armor layer 1

material

Wrinkled steel belt

Inner sheath

Thickness (±0.1mm).

0.9

Armor layer 2

material

Thin round galvanized steel wire

Outer sheath

Thickness (±0.2mm).

1.8

Operating temperature range

℃

-40~+70

pulling force

Short-term/long-term (N）

2000/900

Squashed

1500/400

*Can be customized according to customer needsOther structures or number of cores


Key mechanical and environmental properties

project

Inspection standards

Prescribed value

request

Stretch

IEC 60794-1-2-E1

See technical data

The short-term add-on attenuation ≤ 0.1dB

Squashed

IEC 60794-1-2-E3

See technical data

The short-term add-on attenuation ≤ 0.1dB

impact

IEC 60794-1-2-E4

Hammer 450g, drop height 1m, at least 5 times

Residual additional attenuation ≤ 0.03dB

Repeated bending

IEC 60794-1-2-E6

Load 150N 30 times

Residual additional attenuation ≤ 0.03dB

torsion

IEC 60794-1-2-E7

1m ，±180°, 10 times

Residual additional attenuation ≤ 0.03dB

Temperature cycling test

IEC 60794-1-2-F1

-40℃ ~+70℃

Additional attenuation ≤ 0.05dB

Combustion performance

IEC 60332-1-2

Fire resistance

Optical fibers maintain optical contact continuity

Flame retardant - single vertical burning

The distance between the lower edge of the upper fixture and the burnt focus > 50mm

Flame retardant - combustion

The height of the carbonized part < <b12>m

Smoke density

The light transmittance is not less than 50%.

* All fiber attenuation changes are monitored at 1550nm wavelength.

Packing and delivery length

standard wooden discs;

Nominal delivery length: 1000m/2000m or according to customer requirements.

Ordering information

RHTX

MGTS33

-□□

1  2

1 Number of fiber cores:

2~288

2 Fiber Type:

A1a(50/125) / A1b(62.5/125)/B4(G655)/B1.3(G652D)

 

 


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The company actively responded to the "the Belt and Road" national policy and built an international marketing network. This product has obtained international certifications such as CE in Europe, GOST in Russia, SABS in South Africa, and has been recognized by international power standards such as ASTM in the United States and IEC in the International Electrotechnical Commission. The product is popular in more than 20 countries and regions including Europe, Pakistan, Bangladesh, the Philippines, Maldives, Ecuador, Peru, South Africa, etc.

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