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Zinc-Coated (Galvanized) Steel Wire/Steel Overhead Ground Wire

Price: Keen price  |  Get latest price
Conductor Material:
Aluminum/Aluminum Alloy
Standard: BS IEC ASTM DIN
Stock: have stock
Tempereture Range: -40~+80℃

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※ Large amount of production can be customized upon request.
introduction

Overhead Ground Wire  information
1)  The type of this fiber with single-mode or multi mode with a loose tube which is made of high modulus plastic .there is used a water-resistant filling compound for filling.
2) the center used a steel wire locates as a metallic strength member .for some cable ,a steel wire sometimes sheathed with polyethylene .the tubes ( and filers ) are stranded around the strength member into a compact and circular cable core.double sides chromium for PSP with PE as sheath .
3) by single or double wire for installation ,also with PE for outer sheath.

Overhead Ground Wire  Features
  PE outer sheath provide excellent  ultraviolet radiation resistant property
  After the optical  fiber ,the additional attenuation close to  zero,no changed dispersion.
  Good moisture-resistance
  Control of  fiber  excess length stability.

Overhead Ground Wire Tech spec

Cable Count

Out sheath
Diameter

Weight

Minimum allowable Tensile Strength
(N)

minimum allowable Crush Load
(N/100mm)

Minimum Bending Radius
(MM)

Storage
temperature

(MM)

(KG)

short term

long term

short term

long term

short term

long term

(°C)

24

10.5

90.00

1500

600

1000

300

20D

10D

-40+60

36

10.5

90.00

1500

600

1000

300

20D

10D

-40+60

42

10.5

90.00

1500

600

1000

300

20D

10D

-40+60

48

10.5

90.00

1500

600

1000

300

20D

10D

-40+60

60

10.5

90.00

1500

600

1000

300

20D

10D

-40+60

72

13.5

160.00

1500

600

1000

300

20D

10D

-40+60

96 13.5 160.0 1500 600 1000 300 20D 10D -40+60
144 15.5 180.0 1500 600 1000 300 20D 10D -40+60

Overhead Ground Wire Application
  Adopted to Outdoor distribution
  Suitable for aerial .pipeline ,direct burried
  Long distance and local area network(LAN) communication

Overhead ground wire Packaging & Delivery
Packaging Details: Within 2 weeks after confirming the order
Delivery Detail: Wooden drums or as customers' requirements
Overhead Ground Wire Details
Protection device for overhead transmission lines from lightning strike. Also known as the lightning line. Referred to as the ground wire. Transmission line across the vast region, in the thunderstorm season vulnerable to lightning caused transmission interruption, become one of the main causes of outages in power system. The installation of overhead ground wire can reduce the lightning accidents, improve the safety operation of the line. Overhead ground wire is an important part of high voltage transmission line structure. High voltage and ultra high voltage substation covers a vast area, for preventing thunder regional, installation of lightning rod can be difficult, and sometimes also the overhead ground wire protection, overhead ground wire is erected in the middle of the wires are protected. Appear in the line above thundercloud to ground discharge, lightning channel is easily first hit the ground, the lightning current into the earth, to protect the normal power supply wire. At the same time, overhead ground wire and electromagnetic shielding effect, when the line on the ground near the lightning discharge, can reduce the Lightning Induced Overvoltage on the wire. Overhead ground wire and the grounding device must be firmly connected to ensure that after being struck by lightning, lightning current can be reliably into the earth, and avoid lightning point potential rise suddenly caused by counter.

Transmission line with two important general overhead ground wire to wire protection scope protected all on its internal. This range is commonly used to represent the protection angle. Alpha angle refers to the angle between the overhead ground wire and the outer conductor of the plane and the overhead ground wire vertical to the ground plane. Generally the α ≤ 20 ° ~ 30 ° that lead can be protected.

Overhead ground wire due to not burden carrying current function, so is not required to have conductivity and wire section and wire the same, usually by steel wire. The normal line to send electricity, electromagnetic induction overhead ground wire is affected by the phase current and current, thus increasing the power losses in the lines and affect the transmission performance. Some transmission line using conductor wire for overhead ground wire, aluminum alloy or aluminum clad steel wire made of. Conductive properties of the wire is better, can improve the transmission performance, reduce the interference to adjacent communication lines.
Overhead ground wire through proper modification can also be used as a communication channel, therefore, has developed a new type of overhead ground wire composite type optical fiber cable, make it have the function of lightning, communication etc..

  • Tag:
  • overhead cable
  • ground cable
  • Galvanized cable
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