Novel cooling type power-signal composite cable

Abstract

Disclosed in the invention is a novel cooling type power-signal composite cable comprising power transmission units and a signal transmission unit. A glass fabric thickening layer and a fireproof layer coat the power transmission units and the signal transmission unit. A foaming layer is arranged outside the power cable fireproof layer; an outer shielding layer coats the power cable fireproof layer; and a ventilation cooling layer coats the power cable fireproof layer. Ventilation holes are formed in the power cable ventilation cooling layer. According to the invention, when the cable is being laid, the process is convenient and rapid, the efficiency is high, and the manpower and materials are saved. With an elastic layer, the glass fabric thickening layer, and the foaming layer, the power transmission units and the signal transmission unit are combined into one, so that one composite cable has the power transmission function and the signal transmission function; and the overall performance is improved. Moreover, because of the ventilation holes, the heat generated during the cable using process can be dissipated timely, so that a phenomenon that the cable is damaged due to too high temperature can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a novel cooling type power and signal composite cable. Background technique [0002] Power cables are indispensable basic equipment for energy transmission and information transmission. Today, with the rapid development of social informatization and electrification, power cables have become one of the most important basic products in economic construction; the power cable industry is also a supporting industry. The products must meet the requirements of the main industries of the national economy for the performance of power cables. The national economy believes that most industries are related to power cables, and its industrial status is very important; my country's power cable industry is still in the development stage and is an important part of national economic construction. In the leading industry, the growth of power cable production and sales indicators is generally h...

AI Technical Summary

Problems solved by technology

The current power cable and signal cable are two single cables, which are time-consuming, material-consuming and difficult to lay in the production and production process.

Especially in the final extrusion sheath process is completed independently, the operation is complicated, the time is long, the manpower is large, and the consumption of materials

[0004] The existing cables have a single structure, poor shielding, extrusion resistance, fire resistance, and shielding performance, and relatively weak adaptability in the actual use environment, which shortens the service life, and most cables do not have fusion optical cables; In addition, power The cable must be specified in a certain ambient temperature during operation, allowing the power cable to pass a limited current to determine the service life and safety of the insulation layer of the power cable. The measurement of the working temperature of the power cable conductor is estimated by measuring the temperature of the cable surface , it is very difficult to measure buried cables. The characteristics of optical fiber transmission signals are small attenuation constant and long relay distance. Using the characteristics of the optical fiber to optical transmission signal has the characteristics of back radiation transmission principle to obtain information such as the temperature of the time and space where the optical fiber is located, forming Online long-distance monitoring

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