Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-voltage power cable for nuclear power station

A low-voltage power and nuclear power plant technology, used in power cables with shielding/conducting layers, insulated cables, cables, etc., it can solve the problems of general shielding effect, inability to cope with high-temperature accident environments, etc., and achieve good immersion performance and insulation. , the effect of twisting convenience

Inactive Publication Date: 2013-03-06
JIANGSUSNGSHANG CABLE GROUP
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantage: no shielding layer, the shielding effect is average, and it cannot cope with the high temperature environment of the accident
Its main disadvantage: no shielding layer, the shielding effect is average, and it cannot cope with the high temperature environment of the accident

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-voltage power cable for nuclear power station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] like figure 1 As shown, a low-voltage power cable for a nuclear power plant includes a conductor 1 . The number of conductors 1 is 2 or more, preferably 2-6. To illustrate the problem, 3 conductors are used as an example here. Each conductor 1 is extruded with an insulating layer 2, the insulating layer 2 and the conductor 1 form a core wire 3, three core wires 3 and filler 4 are stranded to form a cable core 5, and the cable core 5 is successively provided with a wrapping layer 6, a shielding layer 7 and a The sheath 8 and the shielding layer 7 are a copper-plastic composite tape, a braided layer of copper wire or a combination of the two. The cable core 5 is wrapped around the cladding layer 6 , and the shielding layer 7 is wrapped around the sheath 8 .

[0027] Among them: conductor 1 is preferably stranded tinned copper wire conductor; insulation layer 2 is preferably steam-crosslinked low-smoke, halogen-free, flame-retardant ethylene-propylene rubber insulation l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a low-voltage power cable, in particular to a low-voltage power cable for a nuclear power station. The low-voltage power cable comprises at least two conductors (1), an insulation layer (2) is extruded outside each conductor (1), each conductor (1) and the corresponding insulation layer (2) form a core (3), each core (3) and packing (4) are stranded into a cable core (5), a wrapping layer (6), a shielding layer (7) and a sheath (8) are arranged outside the cable cores (5) sequentially, the shielding layer (7) is a combination of a copper-plastic composite belt and a copper wire braided layer, the wrapping layer (6) wraps the cable cores (5), and the sheath (8) is extruded outside the shielding layer (7). Therefore, the low-voltage power cable for the nuclear power station is high in long-term thermal aging resistance, nuclear radiation resistance, DBA (design basis accident) resistance and immersion performance after DBA.

Description

technical field [0001] The invention relates to a low-voltage power cable, in particular to a low-voltage power cable for nuclear power plants. The invention is suitable for cables with a rated voltage of 0.6 / 1kV. 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 si...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02H01B7/28H01B7/295
Inventor 王松明李斌梁福才凌国桢于雪芳曾庆涛潘冬雪
Owner JIANGSUSNGSHANG CABLE GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com