Stock Code:601869.SH / 06869.HK

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Optical Fibre Composite Overhead Ground Wire (Uni-tube)

Optical fibre composite overhead ground wire (OPGW) is an overhead ground wire containing optical fibre. It has multiple functions such as overhead ground wire and optical communication. It is mainly used for communication lines of 110KV, 220KV, 500KV, 750KV and new overhead high-voltage transmission system. It can also be used to replace the existing ground lines of the old overhead high voltage transmission system, add the optical communication line, transmit short time current and provide anti lightning protection. Other structures can be customized on request.
Characteristics
  • Stainless steel tubes filled with hydrophobic gel provide the protection and support of the optical fibres
  • Good tensile performance
  • Small diameter, light weight, low additional load to the tower
  • Appropriate fibre excess length of optical unit easliy to make
Optical Fibre Characteristics

 

Attenuation

Bandwidth

Polarization Mode Dispersion

 

@850nm

 

@1300nm

 

@1310nm

 

@1550nm

 

@850nm

 

@1300nm

Individual Fibre

Design Link Value (M=20, Q=0.01%)

G652D

≤0.35dB/km

≤0.21dB/km

≤0.20ps/ km

≤0.1ps/ km

G655

≤0.22dB/km

≤0.20ps/ km

≤0.1ps/ km

50/125μm

≤3.0dB/km

≤1.0dB/km

≥600MHz.km

≥1200MHz.km

62.5/125μm

≤3.5dB/km

≤1.0dB/km

≥200MHz.km

≥600MHz.km

Constructions and Performance

 

Classification

Material

Value

 

 

 

Construction

Optical Fibre

G652D/G655 etc.

2 - 48

Protection Tube

Stainless steel tube

1.5 - 6mm

Stranded Line

AS wire/AA wire/Al Rod

1.5 - 6mm

Max. Diameter

18mm

Max. Cross Section

200mm2

 

 

 

 

Characteristic

According to the standards as DL/T 832, IEC60794-4-10, IEEE1138

Max. Tensile Strength (RTS ) (kN)

280

Max. Crush Strength(N/100mm)

2200

Max. Short Current Capacity (40℃-200℃)(kA2s)

100

Min. Bending Radius (Dynamic)

20D

Min. Bending Radius (Static)

15D

Environment Performance

Installation (℃)

-10 to +50

Transportation and Operation (℃)

-40 to +65

 Note: D is cable diameter.

Specific Type and Technical Data

No.

Technical Data

Product Type

Structure Type

Max. Fibre Count

Section of AS Wire
(mm2)

Diameter

(mm)

Cable Weight
(kg/km)

Rate Tensile Strength

(kN)

20℃DC

Resistance

(Ω/km)

Short Time Current Capacity

(40-200℃ kA2.s)

1

OPGW-24B1.3-40-[51;9]

6/3.0/20AS, Optical Unit 1/3.0

24

≈40

9.0

≤304

≥51

≤2.10

≥9

2

OPGW-24B1.3-50-[58;11.5]

6/3.2/20AS, Optical Unit 1/3.2

24

≈50

9.6

≤345

≥58

≤1.82

≥11.5

3

OPGW-48B1.3-70-[77;24]

6/3.8/20AS, Optical Unit 1/3.8

48

≈70

11.4

≤475

≥77

≤1.30

≥24

4

OPGW-48B1.3-70-[42;38]

6/3.8/40AS, Optical Unit 1/3.8

48

≈70

11.4

≤340

≥42

≤0.70

≥38

Other optical fibre type and count, stranded wire are available om request. 

Mechanical and Environmental Test Characteristics

Item

Test Method

Requirements

 

 

 

Tension

IEC 60794-1-2-E1

Load: according to cable structure                              

Sample length: no less than 10m, linked length no less than100m

Duration time: 1min

 

40%RTS no additional fibre strain(0.01%), no additional attenuation (0.03dB).

60%RTS        fibre        strain≤0.25%,additional        attenuation≤0.05dB                     

(No additional attenuation after test).

 

 

Crush

IEC 60794-1-2-E3

Load: according to above table, three points Duration time: 10min

 

Additional attenuation at 1550nm ≤0.05dB/fibre; No damage to the elements

 

 

Water Penetration

IEC 60794-1-2-F5B

Time : 1 hour Sample length: 0.5m Water height: 1m

 

 

No water leakage.

 

 

 

Temperature Cycling

IEC 60794-1-2-F1

Sample length: No less than 500m Temperature range: -40℃ to +65℃ 

Cycles:   2                            

Temperature cycling test dwell time: 12h

The change in attenuation coefficient shall be less than 0.1dB/km at 1550nm.

Packaging and Drum
  • Standard Cable Drum
  • Standard reel length: 2/3km/reel, other length is also available

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