Lightning protection post insulator
A technology of pillar insulators and insulators, applied in the directions of supporting insulators, insulators, electrical components, etc., can solve the problems of changing influence, lightning protection pillar insulators cannot be reused, and large investment.
Active Publication Date: 2008-12-17
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Problems solved by technology
The former uses a lightning arrester, although the protection effect is good, but the construction and installation are complicated and the investment is large; the latter is an arc-resistant puncture fitting for preventing lightning breakage of overhead insulated wires disclosed in Chinese invention patent 03120004.4, which mainly includes puncture wire clips , arc-resistant electrodes, grounded arc-starting electrodes and insulating shields, etc. This method has the disadvantage of being easily affected by changes in the load side of the ring network power supply, and can only play an arc-proof role.
[0003] In addition, as disclosed in Chinese Utility Model No. 03203469.5 and Chinese Invention Patent No. 200410017514.4, a lightning protection post insulator for overhead insulated cables has the disadvantage that it can prevent the wire from being struck by lightning, but the shed of the insulator will be easily damaged, thereby So that the lightning protection post insulator can not be reused
Method used
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[0024] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.
[0025] Such as figure 1 , 2 , 4, 5, 6, 7 and 8, a lightning protection post insulator, which includes an insulating shield 1, an upper pressing block 21 and a lower pressing block 22 that are arranged inside the insulating shield 1 Wire clamping fittings 2, an arc striker 3 connected to the side ends of the wire clamping fittings 2, an insulator 4 whose two ends are respectively connected to the lower end of the wire clamping fittings 2 and the cross arm 6, and an insulator 4 arranged in the insulator 4 close to the cross arm Bear the lower steel foot 5 of 6 one ends. Equal to the traditional method, the arc striker 3 is preferably facing the outside of the cross arm 6 . When a lightning strike occurs, a flashover discharge is caused between the arc striker 3 and the lower steel foot ...
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Abstract
The invention discloses a lightning protection support insulator, which comprises an insulating hood and a wire clipping hardware fitting which is arranged inside the insulating hood and is composed of an upper pressing block and a lower pressing block. The lightning protection support insulator is characterized in that the lightning protection support insulator also comprises a starting rod connected with the side end of the wire clipping hardware fitting, a insulator with both ends being respectively connected with the lower end of the wire clipping hardware fitting and a cross arm, and a lower steel pin arranged inside the insulator and close to one end of the cross arm. The lightning protection support insulator achieves the combination of the support insulator and an arc protection hardware fitting, and has the characteristics of insulation, conducting wire supporting, arc protection, simplified circuit, low fabricating cost and reusability.
Description
technical field [0001] The invention relates to an overhead power distribution line of a power system, in particular to a lightning protection post insulator for preventing electric power overhead insulated wires from being broken by lightning. Background technique [0002] At present, the measures taken at home and abroad to prevent lightning breakage of 1-35KV overhead insulated conductors mainly include installing oxide arresters on overhead insulated conductors, and installing arc-resistant hardware on the load side of post insulators. The former uses a lightning arrester, although the protection effect is good, but the construction and installation are complicated and the investment is large; the latter is an arc-resistant puncture fitting for preventing lightning breakage of overhead insulated wires disclosed in Chinese invention patent 03120004.4, which mainly includes puncture wire clips , arc-resistant electrode, grounded arc-starting electrode and insulating shield...
Claims
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IPC IPC(8): H01B17/14H01B17/46
Inventor 王哲斐王臻
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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