Low-voltage thin-plate-shaped conductor fireproof bus

Abstract

A low-voltage sheet-shaped conductor fireproof bus relates to the field of power transmission and distribution. The low-voltage bus duct is mainly designed for solving the problems that an existing low-voltage bus duct is low in conductor utilization rate and cannot safely operate in special environments such as direct burial and cable trenches. The cable comprises a thin-plate-shaped copper conductor, an insulating layer and a non-magnetic metal protective shell. An insulating layer is covered outside the thin-plate-shaped copper conductor, that is, the insulating layer is covered on other surfaces except for terminals used for being connected with other equipment at the end part of the conductor, and a non-magnetic metal protective shell is arranged outside the insulating layer. The cable has the advantages of higher heat dissipation performance, higher conductor utilization rate and more reliable safety, and can simultaneously meet the requirements of fire prevention, flame retardance and operation conditions in special environments such as direct burial and cable trenches.

Description

Technical field:

[0001] The invention relates to the field of power transmission and distribution, and in particular to a low-voltage busbar which has fire prevention and flame retardancy requirements and is used for power transmission in a complex operating environment. Background technology:

[0002] Low-voltage bus ducts are widely used, and copper or aluminum bars are generally used as conductors. Copper or aluminum bars are thick, have poor heat dissipation, and low conductor utilization. Traditional low-voltage bus duct insulation layers mostly use composite materials that have no fireproof or flame-retardant functions. Once the insulation ignites, discharges, or breaks down, it will cause a fire. The protection level of the traditional low-voltage bus duct casing is limited. Most low-voltage bus ducts cannot operate safely in special environments such as direct burial and cable trenches. The few low-voltage bus ducts that can operate in the above environments are very expensive. Summary of the invention:

[0003] The technical problem to be solved by the present invention is to provide a low-voltage thin-plate conductor fireproof busbar, whose insulation layer is fireproof and flame retardant, and can maintain high insulation performance under high temperature conditions. Its outer shell is made of non-magnetic metal material, has a high protection level, and has good sealing performance. It can be used in complex environments such as direct burial and cable trenches.

[0004] The low-voltage thin-plate conductor fireproof busbar of the present invention comprises a thin-plate copper conductor, an insulating layer, and a non-magnetic metal protective shell;

[0005] The thin plate-shaped copper conductor is covered with an insulating layer on the outside, that is, the insulating layer covers all surfaces except the terminals at the ends of the conductor for connecting with other devices, and a non-magnetic metal protective shell is arranged outside the insulating layer.

[0006] The conductor is made of copper, and the conductor is a thin copper plate conductor, which has a small skin effect coefficient, good heat dissipation, low temperature rise and high conductor utilization rate.

[0007] The insulating layer is made of mica, glass fiber, etc. It is fireproof and flame retardant and can maintain high insulation performance under high temperature conditions.

[0008] The protective shell is made of non-magnetic aluminum alloy or stainless steel, has a high protection level and good sealing performance, and can be used in complex environments such as direct burial and cable trenches.

[0009] The advantages of the present invention are: it has stronger heat dissipation performance, higher conductor utilization, more reliable safety, can simultaneously meet the conditions of fire prevention, flame retardancy and operation in special environments such as direct burial and cable trenches, is maintenance-free and has great cost-effectiveness. Description of the drawings:

[0010] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0011] Figure 2 It is a schematic structural diagram of the thin plate-shaped copper conductor in the present invention. Specific implementation method:

[0012] The following is combined with Figure 1-2 The technical solution of the present invention is further described in detail with specific implementation methods so that those skilled in the art can better understand the present invention and implement it, but the examples are not intended to limit the present invention.

[0013] The present invention discloses a low-voltage thin-plate-shaped conductor fireproof busbar, comprising a thin-plate-shaped copper conductor 1, an insulating layer 2, and a non-magnetic metal protective shell 3;

[0014] The thin plate-shaped copper conductor 1 is covered with an insulating layer 2 on the outside, that is, the insulating layer covers all surfaces except the terminals at the ends of the conductor for connecting with other devices, and a non-magnetic metal protective shell 3 is arranged outside the insulating layer.

[0015] The conductor is made of copper, and the conductor is a thin copper plate conductor, which has a small skin effect coefficient, good heat dissipation, low temperature rise and high conductor utilization rate.

[0016] The insulating layer is made of mica, glass fiber, etc. It is fireproof and flame retardant and can maintain high insulation performance under high temperature conditions.

[0017] The protective shell is made of non-magnetic aluminum alloy or stainless steel, has a high protection level and good sealing performance, and can be used in complex environments such as direct burial and cable trenches.

[0018] The present invention has stronger heat dissipation performance, higher conductor utilization, more reliable safety, can simultaneously meet the conditions of fire prevention, flame retardancy and operation in special environments such as direct burial and cable trenches, is maintenance-free and has great cost-effectiveness advantages.

[0019] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A low-voltage thin-plate conductor fireproof busbar, characterized by: It comprises a thin plate-shaped copper conductor (1), an insulating layer (2), and a non-magnetic metal protective shell (3); The thin plate-shaped copper conductor (1) is covered with an insulating layer (2) on the outside, that is, the insulating layer covers all surfaces except the terminals at the ends of the conductor for connecting with other devices, and a non-magnetic metal protective shell (3) is arranged outside the insulating layer.

2. The low-voltage thin-plate conductor fireproof busbar according to claim 1 is characterized in that: The conductor is made of copper and is a thin copper plate conductor.

3. The low-voltage thin-plate conductor fireproof busbar according to claim 1 is characterized in that: The insulating layer is made of mica and glass fiber.

4. The low-voltage thin-plate conductor fireproof busbar according to claim 1 is characterized in that: The protective shell is made of non-magnetic aluminum alloy or stainless steel.

Images