Arc-proof stabbing gold tool for preventing aerial insulated wire being broken by lightning stroke
A technology for overhead insulated wires and lightning strike disconnection, which is applied in the direction of needle point/slotted plate contacts used to penetrate insulated wires/cable core wires, overhead installation, cable installation, etc., which can solve construction complexity and waste of resources To achieve the effect of filling technical gaps, reducing accidents and simplifying construction
Inactive Publication Date: 2009-10-14
SHANDONG XUNSHI ELECTRIC
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Problems solved by technology
However, since the arc-resistant electrode set is a one-way arc-resistant electrode, it is only suitable for single-line installation
When facing double lines, the same protective fittings must be installed on both sides of the insulator, which not only causes the complexity of construction, but also causes too much waste of resources
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] Such as figure 1 The arc-resistant puncture fittings of the present invention include: a puncture wire clamp consisting of an upper pressing block 4, a middle pressing block 5, and a lower pressing block 6, a grounded arc-starting electrode 3, an arc-resistant electrode 7, an insulating cover 8 for the piercing wire clamp, Arc electrode insulating cover 9 constitutes.
[0031] Wherein, the piercing wire clip penetrates the outer insulating layer of the insulated wire, and is in close electrical contact with the conductor inside the insulated wire 1, so that the potential is the same; , the freewheeling power frequency arc moves to the arc-resistant electrode 7 for burning, thereby protecting the insulated wire 1 from damage.
[0032] Moreover, it must be ensured that the piercing clamp of the arc-resistant puncture fitting is at the same potential as the arc...
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The arc-resistant puncture fittings for preventing overhead insulated wires from being broken by lightning according to the present invention include: piercing clips that penetrate through the insulation layer of the insulated wires and are in close electrical contact with the inner conductors, grounding arc-starting electrodes that are electrically connected to the grounding terminals of line insulators, and The arc-resistant electrode electrically connected to the puncture wire clip, the insulating cover, and the bottom edge of the insulating cover are not sealed. It is characterized in that the arc-resistant electrode electrically connected to the puncture wire clip adopts a bidirectional arc-resistant electrode, which is connected to both sides of the puncture wire clip. By setting it as a bidirectional arc-resistant electrode, the present invention changes the defect that the arc-resistant puncture fittings in the prior art must be installed on the load side when used in one direction, and must be installed on both sides of the insulator when used in two directions. The present invention also optimizes the shape of the bidirectional arc-resistant electrode into a dovetail or vertical structure, making the arc-resistant puncture fittings safer to operate, more convenient to install, and more economical to use under the bidirectional power supply mode. The arc-resistant puncture fittings of the present invention are easy and fast to install and meet the operation needs of the construction site.
Description
technical field [0001] The invention relates to an overhead power distribution line of a power system, in particular to an arc-resistant puncture fitting for preventing an overhead insulated wire from being broken by lightning, which is especially suitable for use on a 10KV overhead insulated wire. Background technique [0002] In order to reduce the failure of overhead distribution lines caused by external factors such as trees, birds, and snow, and improve the reliability of power supply, developed countries in the world have gradually adopted overhead insulated wires since the late 1960s. The power grid implements a pilot project of insulation transformation. In the 1990s, the promotion and application began. [0003] Compared with cables, insulated wires have obvious advantages of less investment and faster construction. However, the problem of lightning disconnection is very prominent. The principle of lightning disconnection of insulated wires is significantly diffe...
Claims
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IPC IPC(8): H02G7/00H01R4/24H02G13/00
Inventor 尹彬高新生
Owner SHANDONG XUNSHI ELECTRIC
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