Four-link tension string for +/-800KV heavy ice area

A technology for tension strings and heavy ice areas, applied in the direction of suspension/strain insulators, electrical components, insulators, etc., can solve the problem of poor structural stability of quadruple tension strings, unsatisfactory strength design, increased distance between quadruple tension strings Large and other problems, to achieve the effects of unaffected anti-corona performance, improved stability and load bearing capacity, and compact structure

Active Publication Date: 2012-10-31
SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the large ice and snow load of overhead transmission lines in heavy ice areas, the structural stability of the existing quadruple tension strings is poor, and the strength design cannot meet the requirements. The grading ring and shielding ring designed by the body are not easy to install. Third, because the existing grading ring is a closed ring structure, it must be installed in the insulator string first. Therefore, the aluminum grading ring is often damaged during construction. damaged

Method used

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  • Four-link tension string for +/-800KV heavy ice area
  • Four-link tension string for +/-800KV heavy ice area
  • Four-link tension string for +/-800KV heavy ice area

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Embodiment Construction

[0022] In the accompanying drawings, 1a: first U-shaped hanging ring; 1b: second U-shaped hanging ring; 2: first adjustment plate; 3: parallel hanging plate; 4: traction plate; 5: first right-angle hanging plate; 6a: The second right-angle hanging plate; 6b: the third right-angle hanging plate; 7: the second adjusting plate; 8: U-shaped hanging ring; : extension tie rod; 13: extension tie rod; 14: fifth right-angle hanging plate; 15: bowl head hanging plate; 16: first connecting plate; 16a: second connecting plate; Connecting plate; 19: One variable two connecting plate; 20: Pressure equalizing ring; 21: Shielding ring; 22: Tension clamp; 23: Bracket frame; 24: Sixth right-angle hanging plate; 24a: Seventh right-angle hanging plate; 25: the eighth right-angle hanging board; 26, the insulator.

[0023] figure 1 , figure 2 , image 3 Among them, a ±800KV four-connected tension string in heavy ice area, including two hanging point fittings 9 used to connect with the tower, e...

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Abstract

The invention provides a four-link tension string for a + / -800KV heavy ice area, belonging to fitting strings for construction of transmission lines. The four-link tension string comprises two hanging point fittings connected with a tower, wherein after being connected with the same fitting, each hanging point fitting is connected at the left end of a first yoke plate by a bolt; the right end of the first yoke plate is connected with two insulators by a ball head hanging ring; two of the four insulators are connected on a second yoke plate and the other two insulators are connected on the other second yoke plate; the two second yoke plates are respectively connected with a combined yoke plate by a right-angle hung plate; an equalizing ring is arranged on two insulators; the equalizing ring is in open type or two-leg split type; the combined yoke plate is formed by connecting a two-variable four-link plate, two right-angle hung plates and two one-variable two-link plates by bolts; and two shielding rings are fixed at the upper and lower ends of the two-variable four-link plate by brackets. The four-link tension string has the characteristics of convenience for installation of the equalizing ring, stable structure and high strength.

Description

technical field [0001] The invention relates to an insulator string fitting for erecting a power transmission line, in particular to a four-connection tension-resistant string fitting for a ±800KV power transmission line in a heavy ice area. Background technique [0002] Due to the large ice and snow loads of overhead transmission lines in heavy ice areas, the structural stability of the existing quadruple tension strings is poor, and the strength design cannot meet the requirements. The grading ring and shielding ring designed by the body are not easy to install. Third, because the existing grading ring is a closed ring structure, it must be installed in the insulator string first. Therefore, the aluminum grading ring is often damaged during construction. damaged. Contents of the invention [0003] The purpose of the present invention is to provide a ±800KV four-connected tension string in heavy ice areas with convenient installation of pressure equalizing rings, stable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/04H01B17/06H01B17/48
Inventor 李澄宇李力周唯梁明尚涛曹惠潮任成林舒礼臣吉青秦虹
Owner SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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