Radiation-proof high-flame-retardant special optical cable and preparation method thereof

Abstract

The invention discloses a radiation-proof high-flame-retardant special optical cable and a preparation method thereof. The optical cable comprises an FRP reinforcing core, a plurality of anti-radiation optical fibers, a foaming layer, an anti-stretching layer, an anti-radiation outer layer, a flame-retardant layer, a high-temperature-resistant waterproof layer and a wear-resistant layer; a plurality of positioning grooves are concavely formed in the outer side surface of the FRP reinforcing core, the plurality of positioning grooves are uniformly distributed around the axial direction of the FRP reinforcing core at intervals, and each positioning groove is parallel to the axial direction of the FRP reinforcing core; by arranging the anti-radiation inner layer and the anti-radiation outer layer, dual anti-radiation protection can be achieved for the optical fiber core, and the anti-radiation performance is better; and the FRP reinforcing core, the foaming layer, the anti-stretching layer, the flame-retardant layer, the high-temperature-resistant waterproof layer and the wear-resistant layer are arranged in a matched mode, so that the optical fiber is better in structural strength and has stretching resistance, flame retardance, high-temperature resistance and abrasion resistance. Use performance is better.

Description

technical field [0001] The invention relates to the technology in the field of optical cables, in particular to a radiation-proof and highly flame-retardant special optical cable and a preparation method thereof. Background technique [0002] The use of nuclear energy is becoming more and more popular, especially in China and Japan, where a considerable number of nuclear power plants have been or are under construction, because people's dependence on atomic energy is getting higher and higher. Some of these facilities have places with high radioactivity, and the cables and optical cables used in the power supply and control of related equipment are also radiated by rays. Especially for optical cables used to transmit signals, the radiation produces huge resonance, which can easily cause polarization of optical fiber signals, thereby affecting signal transmission in the radiation area. The environmental tests in the radiation area all rely on optical fibers to transmit signa...

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Problems solved by technology

Especially for optical cables used to transmit signals, the radiation produces huge resonance, which can easily cause the polarization of optical fiber signals, thus affecting the signal transmission in the radiation area

However, the environmental tests in the radiation area rely on optical fibers to transmit signals from various sensors. If the optical cables are not adequately protected, they cannot be applied.

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