Stock Code:601869.SH / 06869.HK

High Voltage Flame Retardant Optical Cable

High voltage cables require transmission control cables to have good electromagnetic radiation resistance, high voltage breakdown resistance, corrosion resistance, moisture resistance and flame retardance. The inner and outer protective layers of YOFC electric high-voltage flame-retardant cable are made of ETFE, TPU, LSZH and other materials, suitable for all optical fibre products, light in weight and good in bending radius, and necessary reinforcing elements are added to improve the tensile and crush resistance of the cable. Several main structural types such as tight buffer optical cable, loose buffer optical cable, stranded optical cable and bundled optical cable can be designed to provide reliable protection for optical fibre according to the application situation, can directly match various system components in the power grid and fully serve the application environment such as power grid control.

According to the requirements of flame retardancy and high voltage breakdown resistance in power environment, YOFC mainly recommends ETFE and TPU sheathing materials.

Sheath Material

Flame Retardant Grade

Dielectric Constant (106)

Tensile Strength

ETFE

V0 (UL-94 Standard)

2.6 (D150)

45MPa

TPU

V0 (UL-94 Standard)

2.4

25MPa

 

The high voltage cable needs to have a certain tensile strength, and the strength of the high voltage cable can be improved under the high-voltage breakdown prevention and waterproof performance of the power through the aramid fibre filling element.

Reinforcing Material

Tension under Strain (0.5 %)

Tension under Strain (1 %)

Tension/Strain Slope

Aramid

60N

120N

120 N/ (1% strain )

 

According to the specific environment of power application, the structure selection is as follows:

Subunit Cable

 

Specifications

Typical Fibre

GI62.5/125

SI105/125

HPCF200/230

Optical Cable Structure

Inner Sheath Material

Hytrel

Hytrel

ETFE

Outer Sheath Material

ETFE

ETFE

TPU

Number of Cable CoreUnits

1

1

1

Inner Diameter φ (mm)

0.9

0.9

0.5

Subunit Diamete φ (mm)

1.8

1.8

2.2

Reinforcing Element

Aramid

Aramid

-

Mechanical Properties (aramid)

Allow Tensile Force (N) Long-term

100

100

20

Allow Tensile Force (N) Short-term

300

300

100

Crush Resistance (N/100mm) Long-term

60

60

60

Crush Resistance (N/100mm) Short-term

300

300

300

Minimum Bending Radius (mm) Static

15D

15D

15D

Minimum Bending Radius (mm) Dynamic

30D

30D

30D

Temperature Performance

Working Temperature Range (℃)

-20 to +70

-20 to +70

-20 to +70

Storage Temperature Range (℃)

-45 to +75

-45 to +75

-45 to +75

Attenuation

650nm (laser)(dB/km)

-

-

<10

850nm (LED)(dB/km)

<3

<5

<8

1300nm (dB/km)

<0.8

-

-

Special Twisted Optical Cable

 

 

Specifications

Typical Fibre

SI105/125

GI62.5/125

Optical Cable Structure

Subunit Material

ETFE

ETFE

Subunit Structure

Loose Buffer

Loose Buffer

Number of Core Elements

16

16

Subunit Diameter φ (mm)

1.8

1.8

Mechanical Properties

Minimum Bending Radius (mm) Static

15D

15D

Minimum Bending Radius (mm) Dynamic

20D

20D

Subunit Cable Allow Tensile Force (N) Long-term

100

100

Subunit Cable Allow Tensile Force (N) Short-term

300

300

Subunit Crush Resistance (N/100mm) Long-term

60

60

Subunit Crush Resistance (N/100mm) Short-term

300

300

Maximum Tensile Force of 16 Core Cables (N) Short-term

>2000

>2000

Maximum Tensile Force of 16 Core Cables (N) Long-term

>800

>800

Attenuation

850nm(laser)(dB/km)

≤5

≤3

Bandwidth

850nm(LED)(MHz·km)

≥100

≥100

Application Environment

Low dynamic stress environment,
Good flexibility.

The environment with high dynamic
stress requirements has good tensile strength.

 

Bundle Cable (Bundled Cable with Sheath)

 

Specifications

Typical Fibre

GI62.5/125

HPCF200/230

Optical Cable Structure

Subunit Material

TPU

TPU

Subunit Structure

Tight Buffer

Tight Buffer

Outer Sheath Material

LSZH

LSZH

Number of Core Elements

16

16

Subunit Diameter φ (mm)

2.2

2.2

Main Cable Diameter φ (mm)

13.5

13.5

Mechanical Properties

Minimum Bending Radius (mm) Static

20D

20D

Minimum Bending Radius (mm) Dynamic

30D

30D

Subunit Cable Allow Tensile Force (N) Long-term

20

20

Subunit Cable Allow Tensile Force (N) Short-term

100

100

Subunit Crush Resistance (N/100mm) Long-term

60

60

Subunit Crush Resistance (N/100mm) Short-term

300

300

Maximum Tensile Force of 16 Core Cables (N) Short-term

>500

>500

Maximum Tensile Force of 16 Core Cables (N) Long-term

>200

>200

Attenuation

850nm (laser)(dB/km)

≤3

≤8

Bandwidth

850nm (LED)(MHz·km)

≥100

≥100

Application Environment

Low dynamic stress environment,
good flexibility.

The environment with high dynamic
stress requirements has good tensile strength.

 

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