CN205789255U - A kind of high-strength fireproof flame-proof composite cable - Google Patents

Abstract

The utility model discloses a high-strength fire-resistant and flame-retardant composite cable, which comprises a cable body, a power cable, a signal cable, an aluminum foil shielding layer, a glass fiber braided layer and a halogen-free low-smoke polyolefin sheath. A power cable and a signal cable are provided, and the outer side of the power cable and the signal cable is wrapped with a polyester tape wrapping isolation layer, and the outer side of the polyester tape wrapping isolation layer is provided with a polyethylene insulating layer, and the outer side of the polyethylene insulating layer is There is an aluminum foil shielding layer, a glass fiber braided layer is arranged on the outside of the aluminum foil shielding layer, a water blocking layer is arranged on the outside of the glass fiber braiding layer, and the water blocking layer is wrapped with a halogen-free low-smoke polyolefin sheath. The high-strength fire-resistant The flame retardant composite cable plays the role of signal transmission and power transmission, which greatly saves the cost of manufacturing and laying, makes the cable body have better flame retardant performance, increases the bending resistance, bending resistance and tensile performance of the cable body, and makes the cable During the dragging process of the main body, it is not easy to cause breakage.

Description

A high-strength fire-resistant and flame-retardant composite cable

technical field

The utility model relates to the technical field of power cables, in particular to a high-strength fire-resistant and flame-retardant composite cable.

Background technique

At present, people's need for fast transmission of data and information, and their dependence on computers, word processors, telex, sensors and communication equipment are increasing significantly and rapidly. The emergence of new technologies has made it possible to connect and network equipment in this area, leading to the comprehensive development of communication systems. The use of these systems has increased in specific areas such as high-rise buildings, ships, aircraft, trains, drilling platforms and mines. In order to connect these electronic components, a large number of wires and cables are used in these structures and fields.

In the process of cable laying, because the existing cables only have the function of power transmission, the rapid transmission of data and information cannot be realized, so communication cables need to be laid outside, which greatly increases the cost of manufacturing and laying, and the cable is in use. Frequent punching and twisting, dragging for a long time, the wire core is prone to breakage, which will easily lead to the breakage of the wire core. Sex is hard to guarantee.

Utility model content

The purpose of this utility model is to provide a high-strength fire-resistant and flame-retardant composite cable to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A high-strength fire-resistant and flame-retardant composite cable, including a cable body, a power cable, a signal cable, an aluminum foil shielding layer, a glass fiber braid, and a halogen-free low-smoke polyolefin sheath, and a power cable is arranged inside the cable body and signal cables, power cables and signal cables are respectively set to 3, and the outer sides of the power cables and signal cables are wrapped with a polyester tape wrapping isolation layer, and the outer side of the polyester tape wrapping isolation layer is provided with a polyethylene insulating layer , the outer side of the polyethylene insulating layer is provided with an aluminum foil shielding layer, the outer side of the aluminum foil shielding layer is provided with a glass fiber braided layer, the outer side of the glass fiber braided layer is provided with a water-blocking layer, and the water-blocking layer is wrapped with a halogen-free low-smoke polyolefin sheath .

As a further solution of the utility model: several copper conductors with circular cross-sections are arranged inside the power supply cable.

As a further solution of the present invention: the three power cables and the three signal cables are arranged at intervals and twisted into bundles.

As a further solution of the present invention: the inner side of the insulation layer wrapped with polyester tape is filled with mineral fire-proof material.

As a further solution of the utility model: a tearing rope is arranged inside the water blocking layer.

Compared with the prior art, the utility model has the beneficial effects that: the high-strength fire-resistant and flame-retardant composite cable has a stable structure, enhances the mechanical properties and tensile properties of the cable body, and plays a role in signal transmission and power transmission. Function, strong practicability, greatly saves the cost of manufacturing and laying, makes the cable body have better flame retardant performance, increases the shielding effect of the cable body, increases the bending resistance, bending resistance and tensile performance of the cable body, and makes the cable body During the dragging process, it is not easy to cause breakage, and has a good moisture-proof effect. The sleeve will not release halogen gas and smoke when it burns, which improves the survival rate of trapped people in the event of a fire.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1-polyester tape wrapping isolation layer, 2-copper conductor, 3-cable body, 4-power cable, 5-signal cable, 6-mineral fire-proof material, 7-polyethylene insulation layer, 8-Aluminum foil shielding layer, 9-Glass fiber braiding layer, 10-Tear rope, 11-Water blocking layer, 12-Halogen-free low-smoke polyolefin sheath.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1. In the embodiment of the present utility model, a high-strength fire-resistant and flame-retardant composite cable includes a cable body 3, a power cable 4, a signal cable 5, an aluminum foil shielding layer 8, a glass fiber braiding layer 9 and a halogen-free A low-smoke polyolefin sheath 12, the cable body 3 is provided with a power cable 4 and a signal cable 5 inside, the power cable 4 is provided with a number of copper conductors 2 with a circular cross section, the power cable 4 and the signal cable The cables 5 are set to three respectively, and the three power cables 4 and the three signal cables 5 are arranged at intervals and twisted into a bundle, which enhances the mechanical properties and tensile properties of the cable body 3 and plays a role in signal transmission and power transmission. Functional and practical, greatly saving manufacturing and laying costs; the outer side of the power cable 4 and the signal cable 5 are wrapped with a polyester tape-wrapped isolation layer 1, and the inner side of the polyester tape-wrapped isolation layer 1 is filled with mineral fireproof Material 6, polyester tape wrapping insulation layer 1 is provided with polyethylene insulation layer 7 on the outside, polyethylene insulation layer 7 is made of high flame-retardant polyethylene material with insulation performance, has good flame retardancy, mineral insulation The fire material 6 can prevent the cable from igniting and burning, so that the cable body 3 has better flame retardancy.

The outer side of the polyethylene insulating layer 7 is provided with an aluminum foil shielding layer 8, the outer side of the aluminum foil shielding layer 8 is provided with a glass fiber braided layer 9, and the outer side of the glass fiber braided layer 9 is provided with a water blocking layer 11, and the aluminum foil shielding layer 8 adds a cable body 3 Excellent shielding effect to prevent the signal cable 5 from being interfered by external signals. The glass fiber braided layer 9 increases the bending resistance, bending resistance and tensile performance of the cable body 3, so that the cable body 3 is not easy to break during the dragging process, and the water blocking layer 11 Effectively prevent the penetration of rainwater and have a good moisture-proof effect; the inside of the water-blocking layer 11 is provided with a tear rope 10, and the outside of the water-blocking layer 11 is wrapped with a halogen-free low-smoke polyolefin sheath 12. In the event of a fire, the halogen-free low-smoke The smoke polyolefin sheath 12 will not release halogen gas and smog when burning, which improves the probability of survival of the trapped personnel in the event of a fire.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. a high-strength fireproof flame-proof composite cable, including cable body, power cable, signal cable, foil shielding layer, glass Glass fiber braiding layer and low smoke, zero halogen polyolefin jacket, it is characterised in that inside described cable body, be provided with power cable and letter Number cable, power cable and signal cable are respectively set to 3, are enclosed with polyester belt wrapped outside power cable and signal cable Sealing coat, is provided with polyethylene layer, is provided with aluminum foil shielded outside described polyethylene layer outside the wrapped sealing coat of polyester belt Layer, is provided with fiberglass braided layer outside foil shielding layer, be provided with water blocking layer outside fiberglass braided layer, the outside bag of water blocking layer It is wrapped with low smoke, zero halogen polyolefin jacket.

A kind of high-strength fireproof flame-proof composite cable the most according to claim 1, it is characterised in that in described power cable It is circular copper conductor that portion is provided with some cross sections.

A kind of high-strength fireproof flame-proof composite cable the most according to claim 1, it is characterised in that described 3 power lines Cable and 3 spaced settings of signal cable stranded bunchy.

A kind of high-strength fireproof flame-proof composite cable the most according to claim 1, it is characterised in that described polyester belt is wrapped Mineral fire material it is filled with inside sealing coat.

A kind of high-strength fireproof flame-proof composite cable the most according to claim 1, it is characterised in that inside described water blocking layer It is provided with tear rope.