Irradiation-resistant halogen-free high-flame-retardant EVA electric wire and manufacturing method thereof

Abstract

The invention provides an irradiation-resistant halogen-free high-flame-retardant EVA electric wire which comprises a conductor. A shielding layer is arranged outside the conductor. An irradiation-resistant flame-retardant EVA insulating layer is arranged outside the shielding layer. A fireproof layer is arranged outside the irradiation-resistant flame-retardant EVA insulating layer. A high-temperature-resistant layer is arranged outside the fireproof layer. The conductor is filled with a flame-retardant fiberglass filling rope. A flame-retardant belt is arranged outside the whole conductor and the flame-retardant fiberglass filling rope. An inner irradiation-resistant flame-retardant EVA layer is arranged outside the flame-retardant belt. An armor layer is arranged outside the inner irradiation-resistant flame-retardant EVA layer. An outer irradiation-resistant flame-retardant EVA layer is arranged outside the armor layer. A waterproof and corrosion-proof layer is arranged outside the outer irradiation-resistant flame-retardant EVA layer. A wearing layer is arranged outside the waterproof and corrosion-proof layer. The exterior of the wearing layer is coated with an irradiation-resistant layer. The invention further provides a preparation method of the electric wire. The irradiation-resistant halogen-free high-flame-retardant EVA electric wire is obtained due to the arrangement of the multiple irradiation-resistant layers and the multiple flame-retardant layers.

Description

technical field [0001] The invention relates to a wire and cable and a preparation method thereof, in particular to a radiation-resistant halogen-free high flame-retardant EVA wire and cable and a preparation method thereof. Background technique [0002] Wire and cable is a wire product used to transmit electric (magnetic) energy, information and realize electromagnetic energy conversion. As the main carrier of power transmission, wire and cable are widely used in electrical equipment, lighting circuits, household appliances, etc. The quality of wire and cable directly affects the quality of the project and the safety of consumers' lives and property. Although the wire and cable industry is only a supporting industry, it accounts for 1 / 4 of the output value of China's electrical industry. It has a wide variety of products and a wide range of applications, involving industries such as electric power, construction, communications, and manufacturing, and is closely related to ...

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Problems solved by technology

[0008] Ordinary halogen-free flame-retardant cable materials will crack after being irradiated by high doses, resulting in a serious decline in material performance. Therefore, it is necessary to improve the radiation resistance of wire and cable materials

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