Protection device for copper bar connection

A protection device and copper bar technology, applied in the direction of connection insulation, etc., can solve the problems of affecting the insulation effect and easy damage, and achieve the effects of avoiding partial discharge, reasonable price, and large modification space

Inactive Publication Date: 2018-08-14
YIHE ELECTRIC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, when the existing copper bars are installed and connected, the connecting ends of the copper bars of each phase are aligned up and down, and then bolts and nuts are used to fasten the connection. Finally, the outer surface of the copper bars is covered with heat shrinkable tubes for

Method used

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  • Protection device for copper bar connection
  • Protection device for copper bar connection
  • Protection device for copper bar connection

Examples

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Example Embodiment

[0027] The present invention will be further described below in conjunction with the drawings and embodiments.

[0028] Such as figure 1 As shown, a protection device for copper bar connection includes a fastening bolt 1 and a fastening nut 2 for connecting the copper bar 0 of the same phase, and the connecting ends of the copper bar 0 of the same phase are aligned up and down; Image 6 As shown, the protective sleeve 3 is symmetrically arranged above and below the connecting ends of the two copper bars 0; Figure 2-5 As shown, the inner wall surface of the protective sleeve 3 is provided with a bolt groove 301 corresponding to the fastening bolt 1. The bolt groove 301 contains the protruding part of the fastening bolt 1, which effectively avoids the heat shrinkable sleeve after heat generation. Excessive shrinkage of the tube and damage to the tip of the fastening bolt 1 also avoids the occurrence of undesirable situations such as partial discharge; the outer wall surface of the ...

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Abstract

The invention discloses protection device for copper bar connection. The protection device comprises a fastening bolt and a fastening nut, wherein the fastening bolt and the fastening nut connect thesame-phase copper bars, connection ends of the same-phase copper bars are vertically aligned and connected, protection sleeves are symmetrically arranged above and below two copper bar connection ends, a bolt groove is formed in an inner wall surface of each protection sleeve and is corresponding to the fastening bolt, and thermal shrinkage sleeves sleeve outer wall surfaces of the protection sleeves and the copper bars. In the protection device for copper bar connection, the thermal shrinkage sleeves are heated after the protection sleeves are arranged at the fastening bolt connected with thecopper bar, so that the service lifetime of the thermal shrinkage sleeves is prolonged by the protection sleeves, the phenomenon that the thermal shrinkage sleeves are excessively contracted and arepunctured by a tip of the fastening bolt after heat generation is effectively prevented, and unfavorable condition such as local discharging is also prevented.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a protective device for connecting copper bars. Background technique [0002] Copper bars, also known as copper bus bars or copper bus bars, are made of copper and play the role of transmitting current and connecting electrical equipment in the circuit. Copper bars are widely used in electrical equipment, especially complete sets of power distribution devices; generally, copper bars are used for U, V, W phase bus bars and PE bus bars in power distribution cabinets; copper bars are generally marked in use There are letter marks of the same color or painted with the same color paint, the copper bars of the U phase are painted with "yellow", the copper bars of the V phase are painted with "green", the copper bars of the W phase are painted with "red", and the copper bars of the PE busbar are painted Available in "yellow and green" bi-color. [0003] Among ...

Claims

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Application Information

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IPC IPC(8): H01R4/70H01R4/72
CPCH01R4/70H01R4/72
Inventor 吕思洲徐敬学刘长华徐启进孙芳梅
Owner YIHE ELECTRIC GRP
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