Long-span super high strength optical fiber composite overhead ground wire
An ultra-high-strength, fiber-optic composite technology, applied to conductors, electrical components, non-insulated conductors, etc., can solve problems such as small spans and inability to meet the requirements of large-span transmission lines
Inactive Publication Date: 2016-02-24
ZHONGTIAN ELECTRIC POWER OPTICAL CABLES CO LTD +1
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Problems solved by technology
[0003] However, the existing ground wires for composite optical fibers have a small span and cannot meet the requirements of large-span transmission lines.
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[0009] like figure 1 As shown, a large-span ultra-high-strength optical fiber composite overhead ground wire includes an optical unit wire 1 and four layers of aluminum-clad steel wire 2, the diameter of the aluminum-clad steel wire is 3.5mm, and the conductivity is 14%. , the minimum tensile strength ≥ 1730Mpa; its rated breaking force is 589.66kN, the actual breaking force is 613kN; The spanning distance is 2600m.
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Abstract
The invention discloses a long-span super high strength optical fiber composite overhead ground wire. The long-span super high strength optical fiber composite overhead ground wire includes an optical unit wire and four layers of aluminium-clad steel wires. The long-span super high strength optical fiber composite overhead ground wire is characterized in that: the diameter of each aluminium-clad steel wire is 3.5mm; the conductivity of each aluminium-clad steel wire is 14%; and the minimum tensile strength of each aluminium-clad steel wire >=1730Mpa.
Description
technical field [0001] The invention relates to a large-span ultra-high-strength optical fiber composite overhead ground wire, which belongs to the technical field of composite optical fiber ground wires. Background technique [0002] Composite optical ground wire (OPGW), also known as optical fiber composite overhead ground wire, has dual functions of ground wire and communication optical cable, and is generally installed on the top of the power overhead line tower. The OPGW optical cable can be formed by twisting at least one optical unit wire and multiple aluminum-clad steel wires and / or aluminum alloy wires, wherein the optical unit wire is formed by sheathing the optical fiber in a sealed and waterproof aluminum tube or stainless steel tube. The optical unit line undertakes the communication function, while the aluminum-clad steel wire is used as the ground wire for conducting lightning current and short-circuit current. Usually, the OPGW optical cable must not only en...
Claims
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IPC IPC(8): H01B5/10
CPCH01B5/108
Inventor 何仓平徐拥军周建华辛鹏赵厚鹏路浩栗鸣
Owner ZHONGTIAN ELECTRIC POWER OPTICAL CABLES CO LTD