Compensation cable for nuclear power plant

A technology for compensation cables and nuclear power plants, which is applied in the field of compensation cables and compensation cables for nuclear power plants. It can solve the problems of being unable to cope with high-temperature environments in accidents, general radiation resistance, and general radiation resistance, and achieves good immersion performance, low smoke and halogen-free resistance. Good combustion performance, good performance effect

Inactive Publication Date: 2013-03-06
JIANGSUSNGSHANG CABLE GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main shortcomings: the cable core wire is multi-core structure twisted, and the processing is complicated; the first oxygen barrier layer and the second oxygen barrier layer are made of halogen-free low-smoke polyolefin wrapping tape and copper tape wrapp

Method used

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  • Compensation cable for nuclear power plant

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Embodiment

[0026] like figure 1 As shown, a compensation cable for a nuclear power plant includes an insulating layer 2 and a conductor 1 . A plurality of core wires 3 and fillers 4 are stranded to form a cable core 5, and each core wire 3 is formed by twisting two conductors 1 with an insulating layer 2, and the outer core 5 is provided with a wrapping layer 6 and copper-plastic composite tape shielding in turn. Layer 7, copper wire braided shielding layer 8 and sheath 9. The cladding layer 6 is wrapped around the cable core 5 , the copper-plastic composite tape shielding layer 7 is wrapped around the cladding layer 6 , and the braided copper wire shielding layer 8 is wrapped with a sheath 9 .

[0027] Wherein: conductor 1 adopts thermoelectric coupling gold wire twisted structure. Filling 4 is preferably a low-smoke halogen-free flame-retardant filling strip. The copper wire braided shielding layer 8 is preferably a tinned copper wire braided shielding layer. The insulating layer 2...

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Abstract

The invention relates to a compensation cable, in particular to a compensation cable for a nuclear power plant. The technical scheme includes that the compensation cable for the nuclear power plant comprises conductors (1) with insulating layers (3), and is characterized in that each two corresponding conductors (1) with the insulating layers (2) are stranded to form a core wire (3), the two core wires (3) and a filler (4) are stranded to form a cable core (5), a wrapping layer (6), a copper-plastic composite belt shielding layer (7), a copper wire braided shielding layer (8) and a sheath (9) are sequentially arranged on the outside of the cable core (5), the wrapping layer (6) wraps the cable core (5), the copper-plastic composite belt shielding layer (7) wraps the outside of the wrapping layer (6), and the sheath (9) is extruded on the outside of the copper wire braided shielding layer (8). According to the technical scheme, the compensation cable has the particular advantages of high long-term thermal ageing resistance, high nuclear radiation resistance and high immersion resistance during and after a DBA (design basis accident).

Description

technical field [0001] The invention relates to a compensation cable, in particular to a compensation cable for nuclear power plants. The invention is suitable for cables with a rated voltage of 300 / 500V. The invention belongs to the technical field of cable application. Background technique [0002] AP1000 is the most advanced third-generation nuclear power technology in the world. AP1000 is a single-stack two-loop unit with a design life of 60 years. The main safety system adopts passive design and is arranged in the containment. The containment has a double-layer structure, the outer layer is prestressed concrete, and the inner layer is steel plate structure. [0003] According to the national nuclear power medium and long-term development plan: by 2020, China's nuclear power installed capacity will account for about 7% of the total installed capacity of electric power, reaching 75 million kilowatts. That is: China will approve the construction of at least six million...

Claims

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Application Information

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IPC IPC(8): H01B7/02H01B7/28H01B7/29H01B7/17
CPCY02A30/14
Inventor 王松明李斌梁福才凌国桢于雪芳金华东易蓓蓓
Owner JIANGSUSNGSHANG CABLE GROUP
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