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Double-circuit cable terminal steel pipe pole for overhead transmission line

A technology of overhead transmission lines and double-circuit cables, which is applied in the directions of cable terminals, overhead installation, and cable installation, etc., which can solve the problems of inability to carry out live maintenance on poles, occupy a large area, and have complex structures, etc., so as to facilitate live maintenance on poles , compact electrical design, overall compact effect

Inactive Publication Date: 2014-12-24
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that it occupies a large area, the structure is complex, and it is impossible to carry out live maintenance on the pole.

Method used

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  • Double-circuit cable terminal steel pipe pole for overhead transmission line
  • Double-circuit cable terminal steel pipe pole for overhead transmission line
  • Double-circuit cable terminal steel pipe pole for overhead transmission line

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0032] The specific embodiment: below in conjunction with accompanying drawing, the best embodiment of the present invention is described in detail:

Embodiment

[0033] Embodiment: A kind of steel pipe pole of double-circuit cable terminal of overhead transmission line (see Figure 1-Figure 5 ), which includes the foundation base plate 30, the base base plate 30 is connected to the steel pipe rod shaft 1, and the steel pipe rod shaft 1 is provided with an upper wire cross arm 2, a middle wire cross arm 3, and a lower wire cross arm 4; the length of the upper wire cross arm 2 2.0m, the length of cross arm 3 of middle conductor is 2.5m, the length of cross arm 4 of lower conductor is 2.0m, the vertical distance between cross arm 2 of upper conductor and cross arm 3 of middle conductor, and the vertical distance between cross arm 3 of middle conductor and cross arm 4 of lower conductor The distance is 3.5m to 4m; the lower ends of the upper conductor crossarm 2, the middle conductor crossarm 3, and the lower conductor crossarm 4 are symmetrically connected with a line-type zinc oxide arrester 7, and the distance between the arrester 7 and ...

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Abstract

The invention discloses a double-circuit cable terminal steel pipe pole for an overhead transmission line. The double-circuit cable terminal steel pipe pole comprises a steel pipe pole body (1), an upper wire cross arm (2), a middle wire cross arm (3), a lower wire cross arm (4), full-prefabricated dry cable terminals (5), single-conductor cables (6), line type zinc oxide lightning arresters (7), supporting insulators (8), single busbar fixing clamps (9), aluminum rows (10), copper to aluminum adapter boards (11), C-type device wire clamps (12), A-type device wire clamps (14), wire jumper expansion couplings (15), overhead conductors (16), round-steel-plate bird prevention covers (17), wire tension strings (18) and the like. The double-circuit cable terminal steel pipe pole is safe and reliable, the situation that the full-prefabricated dry cable terminals are damaged due to wind force is avoided, a worker can climb the pole for live line overhauling, and the overall layout is compact and attractive.

Description

Technical field: [0001] The invention relates to a steel pipe pole for a double-circuit cable terminal of an overhead transmission line, which belongs to the field of design, operation, and maintenance of an overhead transmission line in a power system. Background technique: [0002] So far, the standard material of State Grid Corporation's public bidding has been described as a rigid composite casing cable terminal head, although Article 4.1.2 of the "Code for Design of Electric Power Engineering Cables" (GB50217-2007) stipulates that "cable outdoor terminals should be fully dry prefabricated type", but the bids for the fully prefabricated dry-type (or fully-dry prefabricated) cable terminals have not been invited; this is because according to the operation statistics, there are operating defects in individual fully prefabricated dry-type cable terminals installed in the past; the reason is that , the fully prefabricated dry cable terminal head is a flexible material, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/00H02G7/20H02G15/06E04H12/08E04H12/24
Inventor 王茂成张波王硕杨丹吴瑶
Owner STATE GRID CORP OF CHINA
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