CN208335774U

CN208335774U - A kind of multicore stranded conductor fireproof cable

Info

Publication number: CN208335774U
Application number: CN201821095579.4U
Authority: CN
Inventors: 陈林森
Original assignee: Anhui Wilt Instrument Cable Co Ltd
Current assignee: Anhui Wilt Instrument Cable Co Ltd
Priority date: 2018-07-11
Filing date: 2018-07-11
Publication date: 2019-01-04
Anticipated expiration: 2028-07-11

Abstract

The utility model discloses a kind of multicore stranded conductor fireproof cables of multicore twisted cable technical field, including three conductor core wires, the outer wall of the conductor core wire is equipped with inorganic insulation layer, steel wire is equipped between three inorganic insulation layers, the outside of the inorganic insulation layer is equipped with fire-retardant set, the outside of the fire-retardant set is filled with fire prevention filled layer, the outside of the fire prevention filled layer is equipped with glue layer, the outside of the glue layer is equipped with anti-corrosion insulation set, the cable is by being arranged fire-retardant set and fire prevention filled layer in conductor core wire outer layer, enable cable fire protection flame retarding, pass through the setting of collet, make cable that there is heat-insulating capability, wear-resisting mesh grid is socketed on the outside of collet, improve its wearability, equipped with phosphating steel wire, metal center reinforcer as cable, improve the tensile strength of cable, the setting covered by anti-corrosion insulation , the corrosion resistance of cable is improved, enables cable normal use under complex environment.

Description

A kind of multicore stranded conductor fireproof cable

Technical field

The utility model relates to multicore twisted cable technical field, specially a kind of multicore stranded conductor fireproof cable.

Background technique

Wire and cable refers to that " electric wire " and " cable " there is no tight for electric power, electrical and associated transport purposes material The boundary of lattice, usually by core number is few, product diameter is small, the simple product of structure is known as electric wire, what is do not insulated is known as bare wire, Others are known as cable；Conductor cross sectional area is biggish to be known as big cable, and lesser referred to as small electric wire is also known as cotton covered wire electric current master If passing through along conductive line surfaces, referred to as kelvin effect, big line footpath is seldom in the electric current that inside passes through, sufficiently large in order to obtain Current-carrying capacity has certain softness also for conducting wire, and big line footpath is all made of multi cord and is entwined, the purposes prevention of cable, usually In use, to consider the influences of the factors to cable such as environment, temperature, chemical attack and external force damage in large-sized workshop, because This generally has higher requirement, it is ensured that cable still is able to normal use under complex environment when the occasion uses cable.

Utility model content

The purpose of this utility model is to provide a kind of multicore stranded conductor fireproof cables, to solve in above-mentioned background technique It is proposed it is usual in large-sized workshop in use, will in view of environment, temperature, chemical attack and external force damage etc. factors to cable Influence, therefore the occasion use cable when, generally have higher requirement, it is ensured that cable still is able to normally under complex environment The problem of use.

To achieve the above object, the utility model provides the following technical solutions: a kind of multicore stranded conductor fireproof cable, packet Three conductor core wires are included, the outer wall of the conductor core wire is equipped with inorganic insulation layer, is equipped with steel between three inorganic insulation layers Silk, the outside of the inorganic insulation layer are equipped with fire-retardant set, and filled with fire prevention filled layer, the fire prevention is filled out in the outside of the fire-retardant set The outside for filling layer is equipped with glue layer, and the outside of the glue layer is equipped with anti-corrosion insulation set, the outer wall socket of the anti-corrosion insulation set There is collet, the outer wall of the collet is socketed with wear-resisting establishment net.

Preferably, the conductor core wire includes 20 tin plating copper cores, and tin plating copper core is mutually cut with scissors and is threaded together, three institutes Conductor core wire is stated to be triangularly arranged.

Preferably, the steel wire is phosphating steel wire, and the gauge of wire is six millimeters.

Preferably, the fire-retardant set is the fire-retardant set of PVC Sheathing Compound, and it is prominent that the outer wall of the fire-retardant set is uniformly provided with strip It rises, the inner cavity of the fire-retardant set is opened up there are three circular groove.

Compared with prior art, the utility model has the beneficial effects that the cable is hindered by being arranged in conductor core wire outer layer Combustion set and fire prevention filled layer, enable cable fire protection flame retarding, by the setting of collet, cable are made to have heat-insulating capability, heat-insulated It is socketed with wear-resisting mesh grid on the outside of set, improves its wearability, is equipped with phosphating steel wire, the metal center as cable is reinforced Part improves the tensile strength of cable, and the setting covered by anti-corrosion insulation improves the corrosion resistance of cable, so that the cable It can be in normal use under complex environment.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the fire-retardant set right view of the utility model；

Fig. 3 is the fire-retardant nested structure schematic diagram of the utility model.

In figure: 1 conductor core wire, 2 inorganic insulation layers, 3 steel wires, 4 fire-retardant sets, 5 fire prevention filled layers, 6 glue layers, 7 anti-corrosions are exhausted Edge set, 8 collets, 9 wear-resisting establishment nets.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of multicore stranded conductor fireproof cable, including The outer wall of three conductor core wires 1, the conductor core wire 1 is equipped with inorganic insulation layer 2, and inorganic insulation layer 2 is made of polytetrafluoroethylene (PTFE), It is with good insulation performance and high temperature resistance, and the outer wall for being located at conductor core wire 1 plays insulating effect, and three described inorganic Steel wire 3 is equipped between insulating layer 2, the outside of the inorganic insulation layer 2 is equipped with fire-retardant set 4, and the outside of the fire-retardant set 4 is filled with Fire prevention filled layer 5, the outside of the fire prevention filled layer 5 are equipped with glue layer 6, and fire prevention filled layer 5 is alkali-free glass fibre filler, It is strong with pulling force, it is not easily broken, resistance to vulcanization, the property that smokeless halogen-free is nontoxic and pure oxygen is non-ignitable, therefore fire protection flame retarding can be played Effect, glue layer 6 using fire prevention glue, the filled layer 5 that is used to prevent fires bonding solidifies, the outside of the glue layer 6 Equipped with anti-corrosion insulation set 7, anti-corrosion insulation set 7 is perfluoroethylene-propylene (FEP) anti-corrosion insulation set, is stablized with excellent chemically-resistant Property, it is not easily susceptible to the corrosion of acidic or alkaline substances, while there is preferable insulating properties, the outer wall set of the anti-corrosion insulation set 7 It is connected to collet 8, collet 8 is aluminium foil glass fiber collet, has heat insulating function, the outer wall of the collet 8 is socketed with wear-resisting Net 9 is worked out, wear-resisting establishment net 9 is that have preferable wear-resisting property, set is heat-insulated made of polyethylene fibre is woven together The outer wall of set 8 can protect collet 8 not frayed.

Wherein, the conductor core wire 1 includes 20 tin plating copper cores, and tin plating copper core is mutually cut with scissors and is threaded together, three institutes It states conductor core wire 1 to be triangularly arranged, tin plating copper core is a kind of copper core that copper core outer surface is tin plating, it can prevent copper core to be exposed to One tunic-verdigris is oxidized to form in air, and the electric conductivity of verdigris is very poor, will increase resistance, tin plating copper core can prevent Redox reaction occurs in it, generates verdigris, and the steel wire 3 is phosphating steel wire, and the diameter of the steel wire 3 is six millimeters, tin plating Copper core is mutually cut with scissors and is threaded together, and conductor core wire 1 can be made not easily stretchable, and the steel wire 3 is phosphating steel wire, the diameter of the steel wire 3 It is six millimeters, phosphating steel wire abrasion resistance properties are good, the center of cable are arranged in, as the metal center reinforcer of cable, energy The tensile strength of cable is enough improved, the fire-retardant set 4 is the fire-retardant set of PVC Sheathing Compound, plays fire retardation, the fire-retardant set 4 Outer wall be uniformly provided with elongated projections, the surface of fire-retardant set 4 is more smooth, and outer wall, which is provided with elongated projections, can increase and prevent Frictional force between fiery filled layer 5 prevents from producing relative sliding between them, the inner cavity of the fire-retardant set 4 open up there are three circle Connected in star, circular groove are used for fixed conductor core wire 1.

Working principle: steel wire 3 is phosphating steel wire, and phosphating steel wire abrasion resistance properties are good, and the center of cable is arranged in, as The metal center reinforcer of cable can be improved the tensile strength of cable, and inorganic insulation layer 2 is made of polytetrafluoroethylene (PTFE), tool There are good insulation performance and high temperature resistance, the outer wall for being located at conductor core wire 1 plays insulating effect, and fire-retardant set 4 is that low cigarette is low The fire-retardant set of halogen PVC, is located at the outer layer of inorganic insulation layer 2 and conductor core wire 1, can play fire retardation, and fire prevention filled layer 5 is nothing Alkali containing glass fibre filler has pulling force strong, is not easily broken, resistance to vulcanization, the property that smokeless halogen-free is nontoxic and pure oxygen is non-ignitable, therefore It can play the role of fire protection flame retarding, glue layer 6 using fire prevention glue, prevent by the filled layer 5 that is used to prevent fires bonding solidification Rotten insulation sleeve 7 is perfluoroethylene-propylene (FEP) anti-corrosion insulation set, has excellent chemical-resistant stability, be not easily susceptible to it is acid or The corrosion of alkaline matter, while there is preferable insulating properties, collet 8 is aluminium foil glass fiber collet, has heat insulating function, wear-resisting Establishment net 9 is that have preferable wear-resisting property, set can in the outer wall of collet 8 made of polyethylene fibre is woven together Protect collet 8 not frayed.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of multicore stranded conductor fireproof cable, including three conductor core wires (1), it is characterised in that: the conductor core wire (1) Outer wall be equipped with inorganic insulation layer (2), be equipped with steel wire (3) between three inorganic insulation layers (2), the inorganic insulation layer (2) outside is equipped with fire-retardant set (4), and the outside of the fire-retardant set (4) is filled with fire prevention filled layer (5), the fire prevention filled layer (5) outside is equipped with glue layer (6), and the outside of the glue layer (6) is equipped with anti-corrosion insulation set (7), the anti-corrosion insulation set (7) Outer wall be socketed with collet (8), the outer wall of the collet (8) is socketed with wear-resisting establishment net (9).

2. a kind of multicore stranded conductor fireproof cable according to claim 1, it is characterised in that: the conductor core wire (1) Including 20 tin plating copper cores, and tin plating copper core is mutually cut with scissors and is threaded together, and three conductor core wires (1) are triangularly arranged.

3. a kind of multicore stranded conductor fireproof cable according to claim 1, it is characterised in that: the steel wire (3) is phosphorus Change steel wire, the diameter of the steel wire (3) is six millimeters.

4. a kind of multicore stranded conductor fireproof cable according to claim 1, it is characterised in that: the fire-retardant set (4) is The fire-retardant set of PVC Sheathing Compound, the outer wall of the fire-retardant set (4) are uniformly provided with elongated projections, and the inner cavity of the fire-retardant set (4) is opened If there are three circular grooves.