Nuclear power dragging abrasion-resistant cable

Abstract

The invention discloses a nuclear power dragging abrasion-resistant cable, comprising an outer sheath, a shock-absorbing sheath, three main wires, three ground wires, multiple filler bars, and a cablecore. The outer sheath is made of a composite chain extender block modified TPU and abrasion-resistant masterbatch. The outer sheath tightly wraps the outer side of the shock-absorbing sleeve. The shock-absorbing sleeve is made of a reinforced natural rubber material. The main wires each include a main wire conductor and a main wire insulation sleeve tightly wrapping the outer side the main wireconductor. The outer periphery of each main wire is provided with an aluminum-plastic composite film. The ground wires each include a ground wire conductor and a ground wire insulation sleeve tightlywrapping the outer side of the ground wire conductor. The cable core is disposed at the center. The main wires are twisted along the cable core in an equilateral triangle with a pitch ratio of 8 to 10. The filling bars fill gaps between the main wires and the ground wires. The filling bars inside the cable can relieve shock multiple times so as to further alleviate the stress, reduce friction damage, improve the structural reliability of the cable, prolong the service life, and achieve higher safety.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a nuclear power towing wear-resistant cable. Background technique [0002] The global energy is very scarce. In order to respond to energy conservation, environmental protection, and emission reduction, countries around the world are vigorously accelerating the development of nuclear power energy. Among them, nuclear power is the main direction of power structure adjustment in the future. A nuclear power plant with an installed capacity of 1 million kilowatts is compared with a thermal power plant of the same size. , can reduce coal consumption by 3 million tons and carbon dioxide emissions by 7.41 million tons per year, so the development of nuclear power is of great significance for energy conservation, environmental protection, and emission reduction. [0003] Wire and cable are used to transmit electric (magnetic) energy, information and wire products that realize electromagne...

AI Technical Summary

Problems solved by technology

In the broad sense, wires and cables are also referred to as cables for short. In the narrow sense, cables refer to insulated cables, which can be defined as: a collection of the following parts; one or more insulated cores, and their respective possible coatings. Protective layer and outer sheath, cables can also have additional uninsulated conductors. As the main carrier of power transmission, wires and cables are widely used in electrical equipment, lighting lines, household appliances, etc., and their quality directly affects engineering. Quality and personal and property safety. Among them, the use of cables in nuclear power plants is also very common. The environment of nuclear power plants is special, so the performance requirements for cables are particularly strict. Towing cables often face frequent dragging, twisting and scratching. At the same time, they are also vulnerable to vehicles. Direct rolling, if the wear resistance, pressure resistance, and toughness are insufficient, it is easy to have problems such as damage, distortion, and even leakage, resulting in safety accidents

[0004] At present, there are few reports on the trailing cables used in nuclear power plants

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