Pre-twisted wire repair strip and production process thereof
A production process and pre-twisted wire technology, which is applied in the production process field of pre-twisted wire repair strips, to achieve the effect of ensuring safety, reliability and excellent workmanship
Active Publication Date: 2015-03-25
STATE GRID CORP OF CHINA +3
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Problems solved by technology
[0009] In order to solve the problem of the repair fittings that need to be equipped in the repair of OPGW broken strands, the present invention provides a pre-twisted wire repair strip
Method used
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[0028] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.
[0029] Such as figure 1 and 2 As shown, a kind of pre-twisted wire repair strip of the present invention, it comprises a plurality of metal monofilaments twisted together, and metal monofilament is aluminum-clad steel wire 1, and a plurality of aluminum-clad steel wires 1 twisted together form twisted wire , the skeined wire is helically stranded, the skeined wire end 3 is processed into a chamfered shape, the inside of the skeined wire is sprayed with a conductive yarn layer 2, which can prevent static electricity, the skeined wire is covered with an armor layer 5, and the armored layer 5 is copper tape or The nickel strip can effectively prote...
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The invention discloses a pre-twisted wire repair strip. The pre-twisted wire repair strip comprises multiple twisted metal mono-filaments. The multiple twisted metal mono-filaments form a twisted wire, the twisted wire is spirally twisted, the ends of the twisted wire are chamfered, and a conductive yarn layer is sprayed into the twisted wire. The invention further discloses a production process of the pre-twisted wire repair strip. The production process sequentially includes the steps of paying-off, twisted wire forming, cleaning, shearing, end grinding and packaging. A series engineering application OPGW broken strand repair splicing fitting meeting technical index requirements is researched and developed for the OPGW broken strand repairable condition, OPGWs of different sections, different tensile strengths and different materials can be repaired under the broken strand damage condition, the mechanical performance, the electrical performance and the light transmission performance of the repaired OPGWs meet engineering requirements, potential safety hazards are eliminated, and reliable and stable operation of a power grid is guaranteed.
Description
technical field [0001] The invention relates to a pre-twisted wire repair strip. [0002] The invention also relates to a production process of the pre-twisted wire repair strip. Background technique [0003] Optical fiber composite overhead ground wire (OPGW), which belongs to the special overhead optical cable for electric power communication, is erected on the same tower as the transmission wire, and is at the top of the overhead line. It not only has the function of communication optical cable, but also serves as an overhead lightning protection line. key. The application environment of my country's OPGW is much more complicated than that of other countries, such as areas with high thunderstorm days, areas with repeated ice, etc. At the same time, in recent years, the voltage level of my country's transmission lines has become higher and higher, and the transmission capacity has gradually increased. Larger, the erection of towers is getting higher and higher, the span b...
Claims
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IPC IPC(8): H02G1/02G02B6/48
Inventor 戚力彦冯学斌缪晶晶王道根符蓉韩庭刚徐志磊王乐乐孔德春沈辉
Owner STATE GRID CORP OF CHINA