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 OPGW Cable             


Detailed Description


Product Name:OPGW cable
Model:Optical Fiber Composite Overhead Ground Wire


Application:
OPGW cable is mainly used in 500KV, 220KV and 110KV lines, limited by power cut, security and other elements, mostly used in new lines. Its applications are: high voltage over 110kv, with a longer span (usually over 250M);
☆ Easy to maintain, easy for line span, its mechanical property can meet a big line span;
☆ Outer OPGW is metal armoring, with no influence for high pressure electro-corrosion and degradation;
☆ To construct OPGW must cut power, resulting in greater loss, thus OPGW must be used in constructing high voltage line over 110kv;
☆ For OPGW performance index, the more short circuit current, the more need a good conductor to be metal armor, and reduce tension strength, while,

If the tension strength is certain, to increase short circuit current capacity, the only way is to enlarge metal section area, resulting in an increased cable Diameter and weight, so that security is a question for line pole strength.

Characteristics:
☆ Bio-function of ground wire and communication cable, avoid a huge expenditure to re-erect and re-maintain;
☆ Erect on top of power overhead line pole, need not to consider its best hanging point, electro-corrosion, and others.
☆ In the process of old line transformation, cable’s outer diameter and tension may be matched better than another ground wire;
☆ Big transmission capacity, good and reliable communication; excellent mechanical and electrical property;
Good security, long lifetime, and invulnerable to gun fire.


Technical Parameters: 

Central Optical Fiber SUS Tube Structure (Parts)

Structure Drawing

Structurecentral optical fiber SUS tube structure with single stranded layer


Order Type Model

OPGW-36B1-48 [59;11]

OPGW-40B1-58 [71;16]

Max. fiber count

36

40

Tube size

φ3.2 mm

φ3.5mm

Cable diameter

φ9.6 mm

φ10.5 mm

Cross-section carry area

48 mm2

58 mm2

Cable weight

338 kg/km

400 kg/km

Rated Tensile StrengthRTS

59 kN

71 kN

DC resistance at20

1.782 Ω/km

1.490 Ω/km

Short current capacity (40~200)

11 kA2·s

16 kA2·s

Linear expansion coefficient

13.0×10-6/

13.0×10-6/

Young’s modulus

162.0 kN/mm2

162.0 kN/mm2

 

Structure Drawing

Structurecentral optical fiber SUS tube structure with double stranded layers


Order Type Model

OPGW-30B1-127 [77;137]

OPGW-40B1-163 [99;226]

Max. fiber count

30

40

Tube size

φ3.0 mm

φ3.4 mm

Cable diameter

φ15.0 mm

φ17.0 mm

Cross-section carry area

127 mm2

163 mm2

Cable weight

529 kg/km

673 kg/km

Rated Tensile StrengthRTS

77 kN

99 kN

DC resistance at20

0.329 Ω/km

0.255 Ω/km

Short current capacity (40~200)

137 kA2·s

226 kA2·s

Linear expansion coefficient

17.5×10-6/

17.5×10-6/

Young’s modulus

97.3 kN/mm2

97.3 kN/mm2


 

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