Full closed pipe type fire resistant flame retardant bus

Abstract

The invention discloses a full closed pipe type fire resistant flame retardant bus, comprising conductors, insulating layers and insulating jackets. The conductor is a hollow metal pipe; the conductors are coated with mica tapes; the insulating layers are filled between adjacent conductors; all the conductors and the insulating layers are covered by the insulating jackets; the insulating layer or the insulating jacket can be made from synthetic resin insulating materials; and the insulating layers and the insulating jackets can be integrally poured to be formed. The invention has good heat radiation condition and low temperature rising when in operation. Interphase of the bus and whole ground insulating layers are integrally poured to be formed by adopting the synthetic resins, thereby improving insulating level of the bus; fire resistant and flame retardant effects can be achieved by coating the mica tapes outside the conductors; and the insulating parts have integrally poured structures and the allowable stress is big, thereby improving mechanic strength of the bus. Due to the structure advantages of the invention, current-carrying capacity of the bus can be greatly improved and the requirement of system operation is well satisfied.

Description

technical field [0001] The invention belongs to the field of electric equipment, and in particular relates to a fully enclosed tubular fire-resistant and flame-retardant busbar. Background technique [0002] The bus bar is used to transmit electric energy, collect and distribute electric power products. Usually the main conductor used to transmit electric energy in a power plant or a substation is a busbar structure. As the capacity of electrical equipment increases, the requirements for the current carrying capacity of the busbar are also getting higher and higher. The rectangular busbars in the prior art are technically and structurally difficult to meet the heat generation and electromotive force requirements of the busbars, which leads to the problems of insufficient power transmission capacity of the busbars and uneven current distribution. Moreover, the production cost of the rectangular busbar is relatively high, resulting in waste of resources. Contents of the in...

AI Technical Summary

Problems solved by technology

The rectangular busbars in the prior art are technically and structurally difficult to meet the requirements of bus heating and electric power, which leads to the problems of insufficient power transmission capacity of the bus and uneven current distribution

Moreover, the production cost of the rectangular busbar is relatively high, resulting in waste of resources

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