CN206921540U

CN206921540U - A kind of safety and environmental protection low smoke and zero halogen cotton covered wire

Info

Publication number: CN206921540U
Application number: CN201720522057.7U
Authority: CN
Inventors: 王国新
Original assignee: Yunnan Juli Cable Ltd By Share Ltd
Current assignee: Yunnan Juli Cable Ltd By Share Ltd
Priority date: 2017-05-11
Filing date: 2017-05-11
Publication date: 2018-01-23
Anticipated expiration: 2027-05-11

Abstract

It the utility model is related to cable equipment technical field.Purpose is to provide a kind of safety and environmental protection low smoke and zero halogen cotton covered wire, and the cotton covered wire is made up of core, strengthening core, flame-retardant layer, sheath, armor and outer jacket.The core at least two is simultaneously arranged symmetrically along strengthening core, and the surface of insulating layer sets multiple fins along longitudinally asymmetric, and the cross section of the fin is in mushroom-shaped；The strengthening core superficies set multiple grooves along longitudinally asymmetric, and the groove is the closing in flute profile that shape of cross section coincide with fin, and the insulating barrier is snapped together with strengthening core by fin and groove.The strengthening core can improve cotton covered wire tensile characteristics, and insulating barrier is snapped together with strengthening core by fin and groove can also be effectively isolated more cores, prevent from mutually wearing between contact short circuit and core between core, improve the security performance of cotton covered wire.

Description

A kind of safety and environmental protection low smoke and zero halogen cotton covered wire

Technical field

The utility model belongs to cable equipment technical field, and in particular to a kind of safety and environmental protection low smoke and zero halogen cloth electricity Line.

Background technology

Electric wire is common and indispensable a kind of thing in human lives, but on the market most of electric wire all using halogen Material, once electric wire blazes up, it will and substantial amounts of dense smoke is produced, and produces the very strong halogen of the corrosivity with " secondary disaster " Change hydrogen, jeopardize the life of people, endanger equipment and pollution environment.And electric wire be typically by several or several groups of every group of wires extremely The electric wire of few two similar ropes being twisted, mutually insulated between every group of wire, and be often twisted into around a center, it is whole Individual outside is surrounded by overcoat, and in use, meeting phase mutual friction causes wire insulation to wear between every group of wire, or electricity Line number of bends excessively causes wire insulation to damage.Because every group of wire is twisted, once wire insulation damages, Short circuit phenomenon will occur between wire, cause electric wire to burn.Often electric wire burnt produce naked light when, just can by work people Member has found, it is impossible to takes treatment measures in time.

The content of the invention

In view of this, a kind of safety and environmental protection low smoke and zero halogen cotton covered wire provided by the utility model, the cotton covered wire have tension The advantages of intensity is high, security is good.

For achieving the above object, technical scheme is used by the utility model：A kind of safety and environmental protection low smoke and zero halogen Cotton covered wire, including core, the core are followed successively by conductor and insulating barrier from inside to outside, the core at least two and along reinforcement Core is arranged symmetrically, and the core is wrapped up with strengthening core by flame-retardant layer, and sheath, the sheath peripheral hardware are set outside the flame-retardant layer Armor is put, outer jacket is set outside the armor；

The surface of insulating layer sets multiple fins along longitudinally asymmetric, and the strengthening core superficies are along longitudinally asymmetric setting Multiple grooves, the cross section of the fin is in mushroom-shaped；The closing in flute profile that the groove coincide for shape of cross section with fin, institute Insulating barrier is stated to snap together by fin and groove with strengthening core.

Preferably, the strengthening core outer layer is made of plastics, and strengthening core axle center sets steel strand wires, the steel strand wires and plastics one Body extrusion moulding.

Preferably, described core has three, and described each the fin of surface of insulating layer is symmetrical arranged 3-4 on core, The quantity of the strengthening core upper groove is corresponding with core quantity.

Preferably, the insulating barrier uses low-smoke halide-free fireproof composite polyolefine material, and the flame-retardant layer is by with the addition of intumescent The halogen-free flameproof packing material composition of fire retardant, the sheath use high fire-retardance polyolefine material, and the armor uses thin Wire material, the outer jacket use heat discoloration, Halogen, fire retardant polyolefin combined material.

The utility model has the advantages that：In the technical solution of the utility model, because strengthening core and core Insulating barrier fastened by fin and groove, enable to both to be chronically at stable state by position relationship, be effectively isolated more Core, prevent from substantially increasing the safety of cable because the external world tramples, extrudes and mutually wears even contact short circuit between core Property.Simultaneously as the presence of strengthening core, when under tension in cotton covered wire use or installation process, strengthening core can share one Divide pulling force, therefore enhance the tensile characteristics of cotton covered wire.

Brief description of the drawings

Fig. 1 is the utility model cross-sectional structure schematic diagram；

Fig. 2 is the utility model insulating barrier outline structural diagram；

Fig. 3 is the utility model strengthening core outline structural diagram.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made The every other embodiment obtained, belong to the scope of the utility model protection.

With reference to shown in Fig. 1-3, a kind of safety and environmental protection low smoke and zero halogen cotton covered wire includes core 8, and the core 8 includes conductor 1 And insulating barrier 2, the conductor 1 are extruded with insulating barrier 2 successively outside, the core 8 has at least two.The strengthening core 3 includes Outer layer 31 and axle center 32, the axle center 32 are extruded with outer layer 31 outside, and the multiple core 8 is arranged symmetrically along strengthening core 3, the line Core 8 is wrapped with flame-retardant layer 4 with strengthening core 3, is extruded with sheath 5 outside the flame-retardant layer 4, the sheath 5 is coated with armour Layer 6 is filled, outer jacket 7 is extruded with outside the armor 6.

The insulating barrier 2 uses low-smoke halide-free fireproof composite polyolefine material, and its effect is conductor 1 is isolated from the outside insulation, So that core 8 has flame-retarding characteristic, and low cigarette, low toxicity, non-corrosiveness gas produce during chance naked light；The flame-retardant layer 4 is by adding The halogen-free flameproof packing material composition of expansion type flame retardant, when can effectively prevent cotton covered wire spontaneous combustion, or run into naked light prevents cloth Electric wire, which burns away, prevents propagation of flame, and low cigarette, low toxicity, non-corrosiveness gas produce；The sheath 5 is gathered using high fire-retardance Olefin material, its effect are so that cotton covered wire has fire-retardant, good corrosion resistance, water-tolerant and good mechanical strength；Institute State armor 6 and use finer wire material, its effect is the increase in cotton covered wire mechanical strength, Corrosion Protection and pull resistance；It is described Outer jacket 7 using heat discoloration, Halogen, fire retardant polyolefin combined material, developed sapphire blue, extra large by the temperature-sensing color-changing material Blue, dark blue, bright red, bright red, rose-red, grass green, peacock green, it is blackish green, in the color-adjustable such as green, orange red, golden yellow, black, can basis Having developed pigment sets cotton covered wire to show particular color at a certain temperature, is generated heat in cotton covered wire because abnormal to specific temperature When spending, cotton covered wire outer jacket 7 shows particular color, warns staff, even if so that staff handles cotton covered wire exception, prevents Only cotton covered wire further produces harm.

As shown in Fig. 2 the surface of insulating barrier 2 sets multiple fins 20, the cross section of the fin 20 along longitudinally asymmetric In mushroom-shaped, the fin 20 is symmetrical arranged 3-4 along surface of insulating layer.As shown in figure 3, the table of outer layer 31 of the strengthening core 3 Face sets multiple grooves 30 along longitudinally asymmetric, and the groove 30 is what shape of cross section matched with the shape of cross section of fin 20 Closing in flute profile, the groove 30 are symmetrical arranged number, the present embodiment core 8 according to core number along the surface of 3 outer layer of strengthening core 31 For 3, the surface of 3 outer layer of strengthening core 31 sets 3 grooves 30 along longitudinally asymmetric.Multiple cores 8 are along 3 outer layer of strengthening core, 31 symmetrical cloth When putting, the insulating barrier 2 is snapped together with strengthening core 3 by fin 20 and groove 30, it is necessary to which certain external force could be by fin 20 take out from groove 30, enable to both to be chronically at stable state by position relationship.

The outer layer 31 of strengthening core 3 uses plastic material, and its effect is the fin 20 and the outer layer 31 of strengthening core 3 of insulating barrier 2 On groove 30 be easy to worker to implement when fastening, and both fasten after during long-term use, can reduce between the two Mutually abrasion, increases the service life；The axle center 32 of the strengthening core 3 uses steel strand wires, when cotton covered wire use and installation process in During under tension, the axle center 32 of strengthening core 3 can share a part of pulling force, increase the tensile capacity of cotton covered wire, and steel strand wires phase It is more preferable than the single copper cash pliability of same cross-sectional area, so the pliability of cotton covered wire is preferable.

Groove part between described 2 two fins 20 of insulating barrier adds the surface area of insulating barrier 2 so that core 8 with Flame-retardant layer 4 fully contacts, and improves the flame-retarding characteristic of core 8.Multiple cores 8 can be effectively isolated by strengthening core 3, two-by-two core 8 it Between will not produce contact, effectively prevent between core 8 phase mutual friction cause the insulating barrier 2 of damage or core 8 damage after core 8 It short cut with each other between core 8, and strengthening core 3 can share 8 a part of axial tension of core, improve cotton covered wire tensile strength.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in Protection domain within.

Claims

1. a kind of safety and environmental protection low smoke and zero halogen cotton covered wire, including core（8）, the core（8）Conductor is followed successively by from inside to outside（1） With insulating barrier（2）, it is characterised in that：The core（8）At least two and along strengthening core（3）It is arranged symmetrically, the core（8） With strengthening core（3）By flame-retardant layer（4）Parcel, the flame-retardant layer（4）Outer setting sheath（5）, the sheath（5）Outer setting armour Fill layer（6）, the armor（6）Outer setting outer jacket（7）；

The insulating barrier（2）Surface sets multiple fins along longitudinally asymmetric（20）, the strengthening core（3）Outer layer（31）Surface edge It is longitudinally asymmetric that multiple grooves are set（30）, the fin（20）Cross section be in mushroom-shaped；The groove（30）For cross section shape Shape and fin（20）Identical closing in flute profile, the insulating barrier（2）With strengthening core（3）Pass through fin（20）And groove（30）Snapping Together.

A kind of 2. safety and environmental protection low smoke and zero halogen cotton covered wire according to claim 1, it is characterised in that：The strengthening core（3） Outer layer（31）It is made of plastics, strengthening core（3）Axle center（32）Steel strand wires are set, and the steel strand wires are integrally extruded into plastics Type.

A kind of 3. safety and environmental protection low smoke and zero halogen cotton covered wire according to claim 2, it is characterised in that：Described core（8） There are three, each core（8）Upper insulating barrier（2）The fin on surface（20）3-4 are symmetrical arranged, the strengthening core（3）On Groove（30）Quantity and core（8）Quantity is corresponding.

A kind of 4. safety and environmental protection low smoke and zero halogen cotton covered wire according to claim 3, it is characterised in that：The insulating barrier（2） Using low-smoke halide-free fireproof composite polyolefine material, the flame-retardant layer（4）Material is filled by the halogen-free flameproof that with the addition of expansion type flame retardant Material composition, the sheath（5）Using high fire-retardance polyolefine material, the armor（6）Using finer wire material, the outer shield Layer（7）Use heat discoloration, Halogen, fire retardant polyolefin combined material.