CN-224217272-U - IE-level K3-type radiation-resistant power cable

Abstract

The utility model belongs to the technical field of power cables, and particularly relates to an IE-level K3 radiation-resistant power cable, which comprises a protective sleeve, wherein the outer surface of the protective sleeve is provided with equidistantly arranged ventilation and heat dissipation openings, a connecting sleeve is arranged in the protective sleeve, the inner wall of the connecting sleeve is provided with the power cable, the outer surface of the connecting sleeve is fixedly connected with two groups of support rings, one side surface of each group of support rings, which is close to each other, is fixedly connected with equidistantly arranged support plates, one side surface of each support plate, which is far away from the connecting sleeve, is fixedly connected with two groups of telescopic springs, and one end of each group of telescopic springs, which is far away from each other, is fixedly connected with a connecting plate.

Inventors

• HUANG XIAOBAO
• YAO MIN
• HOU SHI
• ZHOU XIAOFEN
• YE XIANGDONG
• SUN LI
• SHEN XIAODONG
• YE QINGYUN

Assignees

• 安徽国电电缆股份有限公司

Dates

Publication Date

20260508

Application Date

20250606

Claims (7)

1. 1. The IE-level K3 radiation-resistant power cable comprises a protective sleeve (1) and is characterized in that ventilation and heat dissipation openings (2) which are arranged at equal intervals are formed in the outer surface of the protective sleeve (1), a connecting sleeve (6) is arranged in the protective sleeve (1), a power cable (5) is arranged on the inner wall of the connecting sleeve (6), two groups of supporting rings (8) are fixedly connected to the outer surface of the connecting sleeve (6), supporting plates (10) which are arranged at equal intervals are fixedly connected to one side surfaces, close to each other, of each supporting ring (8), two groups of telescopic springs (9) are fixedly connected to one side surface, far away from each other, of each supporting plate (10), connecting plates (7) are fixedly connected to connecting plates (7) at equal intervals, and one side surface, far away from each connecting plate (7), of each group of connecting plates is in contact with the inner wall of the protective sleeve (1).
2. 2. The IE-class K3 radiation-resistant power cable according to claim 1, wherein connecting rings (3) are fixedly connected to two side surfaces of the protective sleeve (1), and the inner wall of each connecting ring (3) is fixedly connected with the outer surface of the connecting sleeve (6).
3. 3. The IE-class K3 radiation-resistant power cable according to claim 1, wherein sealing rings (4) are fixedly connected to two side surfaces of the connecting sleeve (6), and the inner wall of each sealing ring (4) is fixedly connected with the outer surface of the power cable (5).
4. 4. The IE-class K3 radiation-resistant power cable according to claim 1, wherein two groups of reinforcing rings (12) are fixedly connected to one side surface, away from each other, of each group of supporting plates (10), and the inner wall of each reinforcing ring (12) is fixedly connected with the outer surface of the telescopic spring (9).
5. 5. The IE-class K3 radiation-resistant power cable according to claim 1, wherein two fixing plates (11) are fixedly connected to the outer surface of each connecting plate (7), and one side surface, away from each other, of each fixing plate (11) is fixedly connected with the inner wall of the protective sleeve (1).
6. 6. The IE-class K3 radiation-resistant power cable according to claim 3, wherein two groups of reinforcing ropes (13) are fixedly connected to the inner walls of the two sealing rings (4), and the outer surface of each reinforcing rope (13) is fixedly connected with the inner wall of the connecting sleeve (6).
7. 7. The IE-class K3 radiation-resistant power cable according to claim 6, wherein two groups of reinforcing rings (14) are fixedly connected to the outer surface of each reinforcing rope (13), the inner wall of each reinforcing ring (14) is fixedly connected with the outer surface of the power cable (5), and the outer surface of each reinforcing ring (14) is fixedly connected with the inner wall of the connecting sleeve (6).

Description

IE-level K3-type radiation-resistant power cable Technical Field The utility model belongs to the technical field of power cables, and particularly relates to an IE-class K3 radiation-resistant power cable. Background The IE-class K3 radiation-resistant power cable is a cable specially designed for a nuclear power plant, belongs to IE-class equipment, has specific performance requirements and safety level, and is used for transmitting power in a related system outside a containment of the nuclear power plant; The method is mainly used for nuclear power plants and places with special requirements on flame retardance, is suitable for power transmission and distribution lines with the rated voltage of 0.6/1kV or below and fixedly laid power, illumination and the like, and can be also used for IE-class K3 rated voltage 10kV or below power systems with the functions of ensuring emergency shutdown, containment isolation, emergency cooling of a reactor core, waste heat output of the reactor containment, emission prevention of radioactive substances to the surrounding environment and the like under the earthquake load outside the containment of the nuclear power plants; At present, when an IE-level K3 radiation-resistant power cable is actually used, the precision requirement on the laying position is extremely high, because the cable meets the nuclear safety protection standard, and adopts a metal armor and multilayer composite structure, the dead weight of the cable is far higher than that of an ordinary cable, the transportation and laying difficulty is increased, higher requirements are put on the installation path planning, meanwhile, the risk of severe physical damage is faced in the operation process, the mechanical extrusion caused by frequent manual treading and equipment movement or unexpected collision of a construction tool can be caused, the outer sheath of the cable is damaged, and the cable is lack of an elastic buffer design and a special protection device and is fixed only by a hard bridge or a pipeline, dynamic external force cannot be effectively dispersed, the sheath is possibly cracked due to slight external force impact, even an inner insulating layer and a conductor are damaged, and the safe and stable operation and the service life of the cable are seriously threatened; In order to solve the problems, the application provides an IE-class K3 radiation-resistant power cable. Disclosure of utility model The utility model aims to provide an IE-class K3 radiation-resistant power cable, which solves the problems in the background technology. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to an IE-class K3 radiation-resistant power cable, which comprises a protective sleeve, wherein ventilating and heat-dissipating openings are formed in the outer surface of the protective sleeve and are equidistantly arranged, a connecting sleeve is arranged in the protective sleeve, a power cable is arranged on the inner wall of the connecting sleeve, two groups of supporting rings are fixedly connected to the outer surface of the connecting sleeve, supporting plates which are equidistantly arranged are fixedly connected to one side surface, close to each other, of each supporting ring, two groups of telescopic springs are fixedly connected to one side surface, far away from the connecting sleeve, of each supporting plate, one end, far away from each telescopic spring, of each group of connecting plates is fixedly connected with a connecting plate, and one side surface, far away from each connecting plate, of each connecting plate is in contact with the inner wall of the protective sleeve. Further, the two side surfaces of the protective sleeve are fixedly connected with connecting rings, and the inner wall of each connecting ring is fixedly connected with the outer surface of the connecting sleeve. Further, sealing rings are fixedly connected to two side surfaces of the connecting sleeve, and the inner wall of each sealing ring is fixedly connected with the outer surface of the power cable. Further, each group of the supporting plates are fixedly connected with two groups of reinforcing rings on one side surface far away from each other, and the inner wall of each reinforcing ring is fixedly connected with the outer surface of the telescopic spring. Further, the surface of every the connecting plate is all fixedly connected with two fixed plates, and every group the fixed plate is kept away from each other a side all with the inner wall fixed connection of protective sheath. Further, two groups of reinforcing ropes are fixedly connected to the inner walls of the two sealing rings, and the outer surface of each reinforcing rope is fixedly connected with the inner wall of the connecting sleeve. Further, the outer surface of every group reinforcing rope is all fixedly connected with two sets of strengthening rings, every the inner