Corrosion-resistant type flame-retardant orbital digital signal cable

A digital signal, corrosion-resistant technology, used in cables, insulated cables, extendable conductor cables, etc., can solve the problems of high construction costs, easy-to-break shields, poor cable bending performance, etc., to improve the shielding performance and corrosion resistance. properties, improve adhesion and resistance to mechanical external force, and improve the effect of tensile strength and impact resistance

CN105741927AInactive Publication Date: 2016-07-06JIANGSU HENGTONG WIRE & CABLE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-07-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a corrosion-resistant type flame-retardant orbital digital signal cable. An inner insulating layer is arranged on the outer surfaces of twisted single wires; a coating layer coats the outer surfaces of 2-20 wire groups; a first copper layer coats the outer surface of the inner insulating layer; a steel layer coats the outer surface of the first copper layer; a second copper layer coats the outer surface of the steel layer; the first copper layer is tightly connected with the inner surface of the steel layer through a first alloy layer; the second copper layer is tightly connected with the outer surface of the steel layer through a second alloy layer; an outer protective layer coats the outer surface of the second copper layer; the first alloy layer comprises copper, iron, molybdenum, chromium and carbon; the second alloy layer comprises copper, iron, molybdenum, chromium and carbon; and the thickness of a polyester tape is 0.03-0.06mm. According to the corrosion-resistant type flame-retardant orbital digital signal cable, the transmission attenuation of the cable is reduced; the formability, extensibility and good electrical conductivity of a product are improved; and the tensile strength is improved.
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Description

technical field

[0001] The invention relates to the field of rail transit signal cables, in particular to a corrosion-resistant flame-retardant rail digital signal cable. Background technique

[0002] With the rapid development of railway transportation, traffic safety has become a concern of the whole society. The speed of railway traffic is getting faster and faster, traffic management is becoming more and more centralized, and data signal transmission methods are diversified. In order to ensure the normal operation of the system, ensure traffic safety, reduce the occurrence and severity of traffic accidents, and reduce the loss of personnel and property, high-performance, high-strength signal cables are required to match it, and the existing railway cables The cable sheath is generally composed of the following structural layers: the coating layer covering the outer layer of the cable core, and the general coating layer is a coating layer made of extruded plastic sleeves...

Examples

Embodiment

[0013] Embodiment: a corrosion-resistant flame-retardant track digital signal cable, including 4 wire groups 2 wrapped by polyester tape 1, and the wire group 2 includes four twisted wires formed by twisting 7 tinned copper wires. Single wire 3, one of the 7 tinned copper wires is located at the center, and the remaining 6 tinned copper wires are twisted on the outer surface of the tinned copper wire located at the center;

[0014] The outer surface of the twisted single wire 3 has an inner insulating layer 4, a cladding layer 5 is wrapped on the outer surface of the four wire groups 2, a first copper layer 6 is wrapped on the outer surface of the inner insulating layer 4, A steel layer 7 is coated on the outer surface of the first copper layer 6, and the outer surface of the steel layer 7 is covered with a second copper layer 8; between the first copper layer 6 and the inner surface of the steel layer 7, a first The alloy layer 9 is sealed and connected, and the second copper...