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Necessity of Erecting Overhead Insulated Conductor
Release time:
2023-03-30
Overhead insulated conductor refers to a power transmission line in which the conductor is suspended on a steel or glass fiber support network during the erection process, and insulation protection is implemented within the erection area. Due to the simple structure, low investment, fast installation, no on-site construction pollution, convenient maintenance and low operating cost, overhead insulated conductors are widely used in the construction and transformation of power transmission lines.
Overhead insulated conductor refers to a power transmission line in which the conductor is suspended on a steel or glass fiber support network during the erection process, and insulation protection is implemented within the erection area. Due to the simple structure, low investment, fast installation, no on-site construction pollution, convenient maintenance and low operating cost, overhead insulated conductors are widely used in the construction and transformation of power transmission lines.
Preliminary preparations for erection of overhead insulated conductors include:
On-site investigation: in order to implement the erection of overhead insulated conductors, first of all, on-site investigation shall be carried out to determine the environmental conditions, topographic characteristics and geological structure in the line erection area, so as to reasonably design the line trend. Erection design: After the site survey is completed, it is necessary to formulate the design drawing for erecting overhead insulated conductors according to the survey results for subsequent construction. Construction preparation: after the erection design is completed, the materials required for construction shall be prepared, including supporting nets, wires, pillars, etc., and the quality of the materials shall meet the requirements.
Installation steps for erecting overhead insulated conductors: specific steps for installing overhead insulated conductors, and installing support nets: first, install the support nets on the embankment according to the design drawings to support the suspended conductors. According to the requirements of the design drawing, hang the wire on the support net and fix it with a rope to prevent the wire from being affected by external force. Installation of pillars: during the erection process, a sufficient number of pillars need to be installed according to the requirements of the design drawing to ensure the safety of the erection. Insulation protection: In order to prevent overhead insulated conductors from external electromagnetic interference, insulation protection devices need to be installed in the erected area to ensure the safe operation of the line.
The above is the specific strategy of erecting overhead insulated conductors. As long as the above steps are followed, the work of erecting overhead insulated conductors can be successfully completed and economical and environment-friendly power transmission lines can be set up.
Overhead insulated wire, that is, suspended insulated wire, refers to the insulated wire suspended on different suspension systems. With its low cost, high portability, simple structure, easy installation, high tensile strength, good thermal shock resistance and other characteristics, it is loved by the majority of users.
Overhead insulated conductors are mainly used to configure high-voltage transmission lines. Its path can be straight or curved, and it can meet different needs by changing the height of the suspension point, which makes the application of overhead insulated conductors more flexible. In addition, due to its good thermal shock resistance, it can resist various harsh climates.
Overhead insulated conductors have some advantages, but there are also some disadvantages. First of all, because the suspended insulated wire is suspended at a high place, it is difficult to install and maintain, and if there is sabotage, it is easy to cause safety accidents. Secondly, the price of hanging insulated wires is relatively high, which is also one of its shortcomings.
In short, overhead insulated conductors have good thermal shock resistance and can meet different needs, but there are also some shortcomings that require users to pay attention to when purchasing and using to ensure safe use.
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