CN202601247U - IE-level radiation control cable for nuclear power plant - Google Patents

Abstract

The utility model provides an IE-level radiation control cable for a nuclear power plant and relates to the technical field of a cable structure for the nuclear power plant. The IE-level radiation control cable comprises three insulating conductors, wherein a high-flame-retardant cladding belt is wound on the exteriors of the three insulating conductors; a copper wire weaved shielding layer, a halogen-free belt cladding layer and a radiation cross-linking halogen-free low-smoke anti-flaming polyolefin sheath layer are arranged on the exterior of the high-flame-retardant cladding belt in turn; alkali-free glass fiber ropes are arranged between the three insulating conductors in the high-flame-retardant cladding belt; each of the insulating conductors is provided with an anaerobic copper wire conductor; and a 150 DEG C 10kV radiation-resisting polyethylene internal insulating layer, a 150 DEG C halogen-free low-smoke anti-flaming cross-linking polyolefin external insulating layer, a polyester belt and a longitudinally wrapped aluminum plastic compound belt are arranged on the exterior of the anaerobic copper wire conductor in turn from inside to outside. The IE-level radiation control cable for the nuclear power plant has the advantages that the structure is novel; the material is novel; a double-layer insulating compound structure and a novel insulating material added with a special medium are adopted; and the organic integration of the electrical property, the anti-flaming property and the mechanical property is better realized.

Description

IE level radiation resistant control cables for nuclear power plants

technical field

The utility model relates to the technical field of a cable structure for a nuclear power plant, in particular to an IE level radiation-resistant control cable.

Background technique

At present, the nuclear safety caused by the increasingly frequent natural disasters should cause people to reflect, and this type of cable, especially the cable used by nuclear facilities, should have higher safety and better economy. Therefore, a consensus has been formed in the industry: IE-level radiation-resistant control cables for nuclear power plants should not only have the general characteristics of ordinary cables, but also have the properties of crack resistance, low smoke, halogen-free, flame retardant, and long life. Environmental properties, such as radiation resistance, LOCA resistance.

Contents of the invention

The utility model aims to provide an IE level radiation-resistant control cable for nuclear power plants with good insulation performance, good flame retardancy performance and good mechanical performance.

The utility model comprises three insulated conductors, and a high flame-retardant wrapping tape is wrapped around the three insulated conductors, and a copper wire braided shielding layer, a halogen-free tape wrapping layer and a radiation wrapping layer are sequentially arranged outside the high flame-retardant wrapping tape. According to the cross-linked halogen-free low-smoke flame-retardant polyolefin outer sheath; an alkali-free glass wire rope is arranged between the three insulated conductors in the high flame-retardant wrapped tape; each insulated conductor is provided with an oxygen-free copper wire conductor, The oxygen-free copper wire conductor is provided with 150°C 10kV radiation-resistant polyethylene inner insulation layer, 150°C halogen-free low-smoke flame-retardant cross-linked polyolefin outer insulation layer, polyester tape and longitudinally wrapped aluminum-plastic composite in sequence from outside to outside. bring.

The utility model has reasonable structure and novel materials, adopts a double-layer insulation composite structure and a new type of insulation material added with special medium, and better realizes the organic unity of electrical performance, flame-retardant performance and mechanical performance.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Detailed ways

The utility model is provided with three insulated conductors, and each insulated conductor is provided with an oxygen-free copper wire conductor 1, and the oxygen-free copper wire conductor 1 is provided with a 150°C 10kV radiation-resistant polyethylene inner insulation layer 2 and 150°C in sequence from the outside to the outside. Halogen-free low-smoke flame-retardant cross-linked polyolefin outer insulating layer 3, polyester tape 4 and longitudinally wrapped aluminum-plastic composite tape 5.

The three insulated conductors are wrapped with a high flame-retardant wrapping tape 7, and a copper wire braided shielding layer 8, a halogen-free tape wrapping layer 9 and an irradiation cross-linked halogen-free low Smoke flame retardant polyolefin outer sheath 10 .

An alkali-free glass silk rope 6 is set between the three insulated conductors in the highly flame-resistant wrapping tape 7 .

Claims (1)

1. IE grade radiation-resistant control cable for nuclear power plants, which is characterized in that it includes three insulated conductors, wrapped around the three insulated conductors with high flame-retardant wrapping tapes, and copper wire braids are sequentially arranged outside the high flame-retardant wrapping tapes Shielding layer, halogen-free tape wrapping layer and radiation cross-linked halogen-free low-smoke flame-retardant polyolefin outer sheath; an alkali-free glass wire rope is arranged between the three insulated conductors in the high flame-retardant wrapping tape; each The first insulated conductor is equipped with an oxygen-free copper wire conductor, and the oxygen-free copper wire conductor is provided with a 150°C 10kV radiation-resistant polyethylene inner insulation layer and a 150°C halogen-free low-smoke flame-retardant cross-linked polyolefin outer insulation layer in sequence from the outside , polyester tape and longitudinally wrapped aluminum-plastic composite tape.

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