Intelligent ultrahigh-tension environment friendly crosslinking cable for power grid and preparation method thereof

A smart grid and cross-linked cable technology, applied in the direction of power cables, cable/conductor manufacturing, power cables with shielding layers/conductive layers, etc., can solve problems such as optical fiber damage, and achieve good environmental performance effects

Inactive Publication Date: 2012-02-15
YUANCHENG CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this structure does not take special protective measures for the optical fiber,

Method used

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  • Intelligent ultrahigh-tension environment friendly crosslinking cable for power grid and preparation method thereof
  • Intelligent ultrahigh-tension environment friendly crosslinking cable for power grid and preparation method thereof
  • Intelligent ultrahigh-tension environment friendly crosslinking cable for power grid and preparation method thereof

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Embodiment Construction

[0014] Such as figure 1 with figure 2 As shown, the present invention is first based on the cable conductor 1, and then the semiconductive conductor shielding layer 2, the insulating layer 3 and the semiconductive insulating shielding layer 4 are extruded on the cable conductor 1 in a three-layer co-extrusion manner, and then wrapped Water-blocking buffer isolation layer 5, thick copper wire 6 and 50 / 125um multimode optical fiber 8 with stainless steel tube 7 evenly placed in it form an armor layer, and soft copper tape 9 is reversely overlapped and wrapped tightly, and finally squeezed out The sheath 10 is coated with a graphite layer 11 .

[0015] The invention is mainly based on optical time domain reflection (OTDR) principle of optical fiber and temperature effect of backward Raman scattering (raman scattering) of optical fiber. When a light pulse is injected into the fiber from one end of the fiber, the light pulse travels forward along the fiber. The inner wall of th...

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Abstract

The invention discloses an intelligent ultrahigh-tension environment friendly crosslinking cable for a power grid and a preparation method thereof. The cable has a structure as follows: a semiconductive conductor shielding layer, an insulating layer and a semiconductive insulation shielding layer are arranged outside a conductor in sequence; a water-blocking and buffering isolating layer is lapped on the conductor; an armor layer is formed by a thick copper wire and multimode fibres with stainless steel tubes, which are uniformly placed in the thick copper wire; and an outer sheath and a graphite layer are arranged outside the armor layer in sequence. The intelligent ultrahigh-tension environment friendly crosslinking cable is armored by using the thick copper wire and overlapped, lapped and tightened reversely by using a soft copper strip so as to simultaneously play roles in metal shielding and metal armoring and bear high short-circuit current. The multimode fibres with the stainless steel tubes are uniformly placed in the armor layer of the thick copper wire, and the stainless steel tubes can play a favorable protection role for the fibres. The multimode fibres with the stainless steel tubes are uniformly placed so as to cause little influence to electric field distribution. In addition, a plastic sleeve of the cable provided by the invention, the outer sheath of the cable, and the like are made of halogen-free low-smoke material uniformly, therefore, the cable has favorable environment friendliness property.

Description

[0001] technical field [0002] The invention belongs to the technical field of wires and cables, in particular to an ultra-high voltage environment-friendly cross-linked cable for smart grids and a preparation method thereof. Background technique [0003] In order to meet the needs of economic and social development and the development and utilization of clean energy, the resource optimization and intelligent level of the grid needs to be improved urgently. For this reason, the State Grid Corporation of China has proposed a development plan for "Strong Smart Grid", supported by a communication information platform. Using intelligent control as a means, it includes all links of power generation, transmission, transformation, distribution, consumption and dispatching of the power system, covering all voltage levels, and realizing a highly integrated integration of "power flow, information flow, and business flow". [0004] The construction of the ultra-high-voltage backbone n...

Claims

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Application Information

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IPC IPC(8): H01B9/00H01B9/02H01B13/00
Inventor 章迁平薛元洪储贤民
Owner YUANCHENG CABLE CO LTD
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