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Fireproof bus duct

A fire-resistant busway, fire-resistant and flame-retardant technology, applied in cooling busbar devices, fully enclosed busbar devices, etc., can solve problems such as hindering the heat dissipation capacity of busbars, and achieve the effect of improving heat dissipation and fire resistance.

Inactive Publication Date: 2018-11-02
XIANGRONG ELECTRIC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fire-resistant busway in the prior art is mostly filled with a large amount of flame-retardant substances in order to improve the fire resistance. These substances also hinder the heat dissipation of the busway while improving the fire resistance.

Method used

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Examples

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0021] Such as figure 1 As shown, a refractory bus duct includes a bottom 1, a side 2 and a top cover 3, and the bottom 1, side 2 and top cover 3 form a cavity; the bottom 1, sides 2 and There are multiple wire cores 4 in the cavity surrounded by the top cover 3, the outer layer of each wire core 4 is covered with an insulating layer 5, and the wire cores 4 are wound together by mica tape 6; the outside of the wire core 4 has "Ω ”-shaped sheath 7, with a refractory layer 8 between the sheath 7 and the bottom edge 1; the cavity above the sheath 7, inside the side 2, and below the top cover 3 is filled with fire-resistant and flame-retardant materials; the top cover 3 has several downward recess...

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Abstract

The invention discloses a fireproof bus duct, and relates to the technical field of power equipment. The fireproof bus duct comprises a bottom edge, a side edge and a top cover, wherein a cavity is encircled by the bottom edge, the side edge and the top cover, a plurality of wire cores are arranged in the cavity encircled by the bottom edge, the side edge and the top cover, an insulation layer wraps an outer layer of each wire core, the wire cores are twisted by a mica tape, an n-shaped sheath is arranged outside the wire cores, a fireproof layer is arranged between the sheath and the bottom edge, a cavity above the sheath, in an inner side of the side edge and below the top cover is filled with a fire proof and flame-retardant material, and a plurality of sunken grooves are formed in thetop cover. The fire-prevention class is improved by various modes, a fireproof coating layer is arranged on the cover plate, a groove filled with the fireproof and flame-retardant material is formed in the cover plate, the cavity is filled with the fireproof and flame-retardant material, the fireproof layer is arranged between the sheath layer and the bottom edge, a fireproof pad is arranged at aconnection position of the cover plate and a clamping groove, and the plurality of wire cores are wrapped by mica paper on surfaces of the wire cores.

Description

technical field [0001] The invention relates to the technical field of electric power equipment, in particular to a fire-resistant busway. Background technique [0002] Busway is a new circuit method called "Bus-Way-System" developed by the United States. It uses copper or aluminum as a conductor, supports it with non-olefinic insulation, and then installs it in a metal groove. conductor. The real practical application in Japan was in Showa 29 (that is, 1954), and the busway has been developed since then. Nowadays, it has become an indispensable wiring method in high-rise buildings, factories and other electrical equipment and power systems. Due to the power needs of various buildings such as buildings and factories, and this need has a tendency to increase year by year, using the original circuit wiring method, that is, the pipe-through method, brings many difficulties during construction, and when changing the power distribution system It is almost impossible to make it...

Claims

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Application Information

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IPC IPC(8): H02G5/06H02G5/10
Inventor 万超建朱波高磊
Owner XIANGRONG ELECTRIC GRP
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