CN205862861U

CN205862861U - A kind of high flame-retardant electric wire and cable

Info

Publication number: CN205862861U
Application number: CN201620777970.7U
Authority: CN
Inventors: 史会平; 陈守娥; 柳莉; 滕厚民; 董春俊; 张培炎
Original assignee: TEBIAN ELECTRIC SHANDONG LUNENG TAISHAN CABLE CO Ltd
Current assignee: TEBIAN ELECTRIC SHANDONG LUNENG TAISHAN CABLE CO Ltd
Priority date: 2016-07-23
Filing date: 2016-07-23
Publication date: 2017-01-04
Anticipated expiration: 2026-07-23

Abstract

This utility model relates to a kind of high flame-retardant electric wire and cable, is arranged at the high fire-retardance oversheath outside cable core including cable core and cladding；Cable core includes that innermost conductor and cladding are arranged at the insulating barrier outside conductor, the high fire-retardance inorganic mineral paper rope filled in cable core intermediate gap and fire-retardant, the wrapped sealing coat of oxygen barrier, fireproof that are coated on outside insulating barrier.The wrapped sealing coat of this utility model cable core uses three layers of fire-retardant fire material wrapped, designs ingenious, and processing technique is simple, safe and reliable, can effectively stop propagation of flame in flame environment.

Description

A kind of high flame-retardant electric wire and cable

Technical field

This utility model relates to electric wire field, particularly to a kind of high flame-retardant electric wire and cable.

Background technology

Along with China's economic growth continuously and healthily, provide the huge market space, usual electric wire electricity for cable products Cable mostly uses intensity to lay when laying, and at densely populated place or important place, then needs the electric wire of high fire-retardance.With Client and require more and more higher to the fire resistance of flame retardant cable, the flame retardant cable structure on market also becomes more complicated and more complicated, price Go up therewith so that cable cost performance reduces.

In view of the above circumstances, the structure of flame retardant cable is needed to be optimized improvement, excellent fire-retardant of cable to be kept Performance, cable to be pursued simple and light, pliable and tough, cost reduces, it is ensured that flame retardant cable is at densely populated place or important The safety and reliability used under site conditions, while effectively preventing propagation of flame, reducings the construction costs.

Summary of the invention

To achieve the above object of the invention, this utility model provides the high flame-retardant electric wire and cable of a kind of new structure, structure Reasonable in design, well arranged, safe and reliable, the cable that effectively stops propagation of flame, reducing the construction costs.

This utility model solves its technical problem and be the technical scheme is that a kind of high flame-retardant electric wire and cable, its feature Be: include conductor, insulating barrier, packed layer and wrapped sealing coat from inside to outside I, II, III, fire-retardant oversheath, insulating barrier It is coated on outside conductor, constitutes insulation with conductor and lead core, lead the outer tightly packed filling having high fire-retardance inorganic mineral paper rope to constitute of core Layer, the outer wrapped sealing coat of packed layer, it include that sealing coat I that high fire-retardance glass fiber tape form, fire-resistant isinglass belt form every Absciss layer II and the sealing coat III of high fire-retardance glass fiber tape composition.

Described conductor structure is the first solid conductor or the second is stranded or other kind stranded conductor structure.

Described insulating layer material is crosslinked polyethylene or polyvinyl chloride insulation.

Described packed layer gathers and is leading between core and sealing coat, improves the pliability that cable is overall.

Described sealing coat around wrapping between packed layer and high fire-retardance oversheath, internal layer high fire-retardance glass fiber tape, thickness 0.5mm, has high fracture strength, can firmly tighten the core of leading of internal layer, reduces the air content within cable.Middle resistance to Fire mica tape, thickness 0.2mm, two-sided smooth, can combine closely with the high fire-retardance glass fiber tape of ectonexine, mica tape itself Having the performance of resistance to 1200 DEG C of high temperature, dense materials is airtight, can effectively prevent outside heat and air from entering in core Portion, outer layer high fire-retardance glass fiber tape, thickness 0.2mm, plays auxiliary and tightens and protect the function of mica tape.

Described high fire-retardance oversheath 7 is high flame retardant polyvinyl chloride sheath or high fire-retardance pe sheath structure.

This utility model has a following beneficial effect: this utility model cable in the case of flame combustion, multiple layer refractory Sealing coat can ensure that cable fire resistance is more stable, and cable fire release heat is few, can be exceedingly fast without cable during extraneous naked light Self-extinguishment, will not form extra burning point, can effectively stop propagation of flame in scene of fire；The structure of lapping layer designs not Only improve fireproofing of cable performance, make overall structure more tight, good sealing effect.

Accompanying drawing explanation

Fig. 1 is cross section structure schematic diagram of the present utility model.

In figure: 1 is conductor, 2 is insulating barrier, and 3 is packed layer, and 4 is wrapped sealing coat I, and 5 is wrapped sealing coat II, 6 be around Bag sealing coat III, 7 is high fire-retardance oversheath.

Detailed description of the invention

With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings:

As shown being a specific embodiment of the present utility model, a kind of high flame-retardant electric wire and cable, described cable is by interior To being followed successively by outward conductor 1, insulating barrier 2, packed layer 3, wrapped sealing coat I 4, wrapped sealing coat II 5, wrapped sealing coat III 6 and height Fire-retardant oversheath 7, described conductor 1 is the first solid conductor or the second is stranded or the 5th kind of stranded conductor structure, described absolutely Edge layer 2 material is crosslinked polyethylene or polyvinyl chloride insulation, and described packed layer 3 is tightly packed high fire-retardance inorganic mineral paper Rope, described wrapped sealing coat includes the wrapped sealing coat I 4 that internal layer is high fire-retardance glass fiber tape composition, and intermediate layer is fire-resistant cloud The wrapped sealing coat II 5 of master tape composition, outer layer is the rich bag sealing coat III 6 of high fire-retardance glass fiber tape composition, described high resistant Combustion oversheath 7 is high flame retardant polyvinyl chloride sheath or high fire-retardance pe sheath structure, and multiple layer refractory thermal insulation layer is combined to one Rise, effectively raise cable fire resistant flame retardant performance.

Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect The detailed description of step, be it should be understood that upper described only specific embodiment of the utility model, is not limited to This utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, all should Within being included in protection domain of the present utility model.

Claims

1. a high flame-retardant electric wire and cable, it is characterised in that: include conductor, insulating barrier, packed layer and from inside to outside wrapped Sealing coat I, II, III, fire-retardant oversheath, insulating barrier is coated on outside conductor, constitutes insulation with conductor and leads core, leads core outer the most tightly packed Having the packed layer that high fire-retardance inorganic mineral paper rope is constituted, the outer wrapped sealing coat of packed layer, it includes high fire-retardance glass fiber tape group Become sealing coat I, fire-resistant isinglass belt composition sealing coat II and high fire-retardance glass fiber tape composition sealing coat III, described every Absciss layer around wrapping between packed layer and fire-retardant oversheath, internal layer high fire-retardance glass fiber tape, thickness 0.5mm, middle fireproof mica Band, thickness 0.2mm, two-sided smooth, outer layer high fire-retardance glass fiber tape, thickness 0.2mm.

A kind of high flame-retardant electric wire and cable the most according to claim 1, it is characterised in that: described conductor structure is solid conductor Or stranded conductor structure.

A kind of high flame-retardant electric wire and cable the most according to claim 1, it is characterised in that: described insulating layer material is poly-for crosslinking Ethylene or polyvinyl chloride insulation.

A kind of high flame-retardant electric wire and cable the most according to claim 1, it is characterised in that: described packed layer gather lead core and Between sealing coat.

A kind of high flame-retardant electric wire and cable the most according to claim 1, it is characterised in that: described high fire-retardance oversheath is high resistant Combustion pvc sheath or high fire-retardance pe sheath structure.