Multi-core coaxial cable

Abstract

The invention discloses a multicore and concentric cable. The cable includes an outer protective sleeve which comprises a plurality of single core and concentric cables. The single core and concentric cable comprises a protective sleeve, a waved shielding coat inside the protective sleeve, a single sided aluminum foil coat, an insulating coat inside the single sided aluminum foil and an inner conductor in the insulating coat. The protective sleeve and the outer protective sleeve are made of a low smoke saltless flame retarding polyolefine. The insulating coat adopts physical foaming polyolefine insulating materials. The invention is easy to be constructed and maintained which saves pipeline resources; the invention is characterized by retarding flame, low smoke, free salt, low poison, free containment of lead, cadmium, phosphorus, etc., uneasy burning and small smoke hazard during fire; the invention has high safety feature and does not place a threat to environment, thus meeting the requirements of people on protection of the ecology and the environment.

Description

technical field [0001] The invention relates to a multi-core coaxial cable. Background technique [0002] With the rapid development of the national economy, the requirements for electric power construction are getting higher and higher, and ordinary cable materials contain many harmful elements such as lead, cadmium, phosphorus, etc., which are difficult to handle during recycling, which will not only pollute the environment , will also cause harm to the human body, especially when a fire occurs, a large amount of smoke and harmful gases will be released from the burning of halogen-containing cables, which will bring difficulties to rescue work. Contents of the invention [0003] The purpose of the present invention is to provide a multi-core coaxial cable. Multiple coaxial cables are arranged in one outer sheath, which is easier to construct and maintain, and saves pipeline resources; at the same time, it also has flame retardant, low smoke, halogen-free, It has the adv...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the national economy, the requirements for electric power construction are getting higher and higher, and ordinary cable materials contain many harmful elements such as lead, cadmium, phosphorus, etc., which are difficult to handle during recycling, which will not only pollute the environment , will also cause harm to the human body, especially when a fire occurs, the halogen-containing cable burns and emits a large amount of smoke and harmful gases, which brings difficulties to rescue and rescue work

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