Photoelectric composite butterfly cable

Abstract

The invention relates to a photoelectric composite butterfly cable. The cable is composed of an insulating plastic body, an electric energy transmission unit and a signal transmission unit, wherein the insulation plastic body is sequentially composed of a first wire containing branch part, a middle connection transition part and a second wire containing branch part, the electric energy transmission unit and the signal transmission unit are correspondingly arranged in the first wire accommodating branch part and the second wire accommodating branch part in a penetrating manner one by one. The electric energy transmission unit comprises a live wire, a zero wire and a ground wire. The live wire, the zero wire and the ground wire are arranged in the first accommodating branch part in a penetrating mode and are parallel. The live wire and the zero wire are symmetrically arranged on two sides of the ground wire. The signal transmission unit comprises an optical fiber bundle and a reinforcing member. The optical fiber bundle is composed of a plurality of optical fibers which are twisted around a peripheral side wall of the reinforcing piece. Therefore, the photoelectric composite butterfly cable has the characteristics of lightning protection, arc breakdown prevention, high tensile strength and the like, and thereby that the signal and electric energy transmission process is safely executed is effectively ensured.

Description

technical field [0001] The invention relates to the technical field of communication optical cable manufacturing, in particular to a photoelectric composite butterfly cable. Background technique [0002] With the development of FTTX construction, the construction of basic communication lines is constantly improving. Optical cables are widely used in various fields of communication and information transmission. In the medium and low voltage distribution network (≤35KV), due to various reasons such as product structure characteristics, power grid and communication responsibilities, etc., it is not possible to fully combine optical fiber communication and power transmission to achieve greater efficiency. In the prior art, power transmission cables and communication optical cables are laid independently of each other, which greatly increases the difficulty of construction. In recent years, a large number of composite cables that can be used for both power transmission and sign...

AI Technical Summary

Problems solved by technology

However, in practical applications, composite cables have the following problems: 1) In thunderstorm weather scenarios, composite cables are extremely vulnerable to lightning strikes, which will not only cause interruption of power and signal transmission processes, but also easily cause fire accidents; The live wire and the neutral wire used to transmit electric energy are entangled with each other. In this way, when the composite cable is applied to a distribution network with a voltage greater than 1KV, the gap between the live wire and the neutral wire is broken down by electricity and an arc occurs. Burning the outer insulation layer of the live wire and the neutral wire will easily lead to the occurrence of a short circuit between the live wire and the neutral wire in the long run, which will affect the safety of electricity use; 3) Compared with the traditional cable, the weight of the composite cable per unit length is doubled, As a result, it is very easy to be torn off due to excessive force when performing high-altitude erection

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