A flame-retardant four-core cable with high insulation resistance and its preparation method
A four-core cable, high-insulation technology, used in insulated cables, cable/conductor manufacturing, insulated conductors, etc., can solve problems such as large leakage risks and reduced insulation resistance, and achieve strong corrosion resistance, anti-softening, and improved oil resistance. Effect
Active Publication Date: 2018-03-16
ZHEJIANG QINSHAN CABLE
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a flame-retardant four-core cable with high insulation resistance and its preparation method, which aims to solve the problem that the insulating layer of the four-core cable in the prior art has strong water absorption , leading to a decrease in insulation resistance and a technical problem with a greater risk of leakage
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0025] refer to figure 1 , the embodiment of the present invention provides a flame-retardant four-core cable with high insulation resistance, including a cable core 1, an insulating layer 2 and a sheath 3, and the number of the cable cores 1 is four groups, which are twisted by bundle twisting , the four groups of cable cores 1 are composed of a conductor bundle formed by twisting several conductor wi...
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The invention discloses a high insulation resistance flame-retardant four-core cable wire comprising cable cores, an insulating layer and a sheath. There are four sets of cable cores which are twisted through a bundle twisting mode. The four sets of cable cores are respectively composed of conductor bundles which are formed by multiple conductor wires through twisting and a high insulation resistance layer which wraps the periphery of the conductor bundles. There are 18-20 conductor wires on each set of cable core. The insulating layer wraps the perihpyer of the four sets of cable cores. The sheath wraps the external layer of the insulating layer. The invention also provides a preparation method of the high insulation resistance flame-retardant four-core cable wire. The high insulation resistance flame-retardant four-core cable wire is obtained through the steps of preparation of the conductor bundles, preparation of the cable cores, preparation of the insulating layer, preparation of the sheath and packaging and storage in turn so that the high insulation resistance flame-retardant four-core cable wire has high insulation resistance and mechanical strength, high corrosion resistance and high level of temperature resistance and oil resistance and cracking resistance so that the service life of the four-core cable wire can be prolonged.
Description
【Technical field】 [0001] The invention relates to the technical field of wires and cables, in particular to a flame-retardant four-core cable with high insulation resistance and a preparation method thereof. 【Background technique】 [0002] The wire and cable industry is an extremely important part of the mechanical and electronic industry. Wire and cable are indispensable basic components for transmitting electric energy, transmitting information and manufacturing various electrical appliances and instruments, and are the basic products of electrification and informationization. [0003] In the current four-core cable, inorganic flame retardants (such as magnesium hydroxide, aluminum hydroxide, etc.) are often added to the cable material to achieve the flame-retardant effect of the insulating layer, but due to the addition of flame retardants, the cable material The content of mineral materials increases, resulting in increased water absorption, reduced insulation resistanc...
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IPC IPC(8): H01B7/295H01B7/02H01B7/18H01B13/00
CPCH01B7/02H01B7/0208H01B7/1805H01B7/295H01B13/00
Inventor 黄威波张黄芳贺建祥张忠华孙玉良
Owner ZHEJIANG QINSHAN CABLE