CN206363798U - A kind of fire proof power cable - Google Patents

A kind of fire proof power cable Download PDF

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Publication number
CN206363798U
CN206363798U CN201620860219.3U CN201620860219U CN206363798U CN 206363798 U CN206363798 U CN 206363798U CN 201620860219 U CN201620860219 U CN 201620860219U CN 206363798 U CN206363798 U CN 206363798U
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China
Prior art keywords
fire
power cable
proof power
outside
resistant belt
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Active
Application number
CN201620860219.3U
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Chinese (zh)
Inventor
邹海楠
常玉琳
王改第
毛孝丹
黄玉龙
马双山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Sheng Hua Cable Group Co Ltd
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Henan Sheng Hua Cable Group Co Ltd
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Priority to CN201620860219.3U priority Critical patent/CN206363798U/en
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Abstract

The utility model belongs to power cable technical field, more particularly to a kind of fire proof power cable, including by the stranded cable core of multiple cores, the core includes extruding external insulation layer outside the conductor of lay configuration, conductor outer cladding inner insulating layer, inner insulating layer;The cable core gap is filled with mineral matter rope; it is surrounded with outside cable core outside internal layer fire resistant belt, internal layer fire resistant belt and is extruded with mineral matter fire proofing material, outer layer fire resistant belt is surrounded with outside mineral matter fire proofing material; having outside outer layer fire resistant belt outside the metallic sheath of lock armo, metallic sheath has environmentally friendly sheath.The utility model can meet fire-fighting requirements, and the production of such cable does not need special equipment, and cost is relatively low.

Description

A kind of fire proof power cable
Technical field
The utility model belongs to power cable technical field, more particularly to a kind of fire proof power cable.
Background technology
At present, because the fire that electric reason triggers occupies the significant fraction of whole fire.With social high speed development, The power supply safety of critical facility is more and more important.Therefore, the fire protecting performance of electric wire is improved, it is ensured that fire is occurring for critical facility Normally used in the case of calamity, be that fire-fighting rescue is raced against time and seems even more important.
However, meeting the fireproof cable of fire-fighting requirements in the market mainly has two kinds, it is that magnesium oxide insulated is firm respectively Property fireproof cable and inorganic mineral insulation(Predominantly mica tape)Metal tape indulges bag flexible fire-proof cable.Its oxygen of rigid fireproof cable Change magnesium insulation moisture-sensitive, structure is harder, mounting and installation inconvenience, while being limited by the constraint of production technology, cable continuously produces length Degree is restricted, and transition joint is more.Inorganic mineral insulation cable insulating barrier not only easily makes moist and under high-temp combustion, rises exhausted The mica of edge and resistance to fire action into powdered can come off, while protective metal shell is not heat-treated through mechanically deform, it is impossible to protect Demonstrate,prove the flexibility of cable.And this two kinds of cable productions are both needed to private cable equipment, invest larger, cable product is expensive, And common fire-resisting cable does not reach fire-fighting requirements.
The content of the invention
The technical problems to be solved in the utility model is exactly to overcome above-mentioned the deficiencies in the prior art, and providing one kind can meet Fire-fighting requirements, and cable production does not need special equipment, lower-cost fire proof power cable.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of fire proof power cable is designed, including by the stranded cable core of multiple cores, the core includes stranded knot External insulation layer is extruded outside the conductor of structure, conductor outer cladding inner insulating layer, inner insulating layer;The cable core gap is filled with mineral matter Rope, is surrounded with outside internal layer fire resistant belt, internal layer fire resistant belt outside cable core and is extruded with mineral matter fire proofing material, mineral matter fire proofing material it is outer around Being surrounded by outside the metallic sheath outside outer layer fire resistant belt, outer layer fire resistant belt with lock armo, metallic sheath has environmentally friendly sheath.
Preferably, in above-mentioned fire proof power cable, the conductor forms for annealed copper wire is stranded.
Preferably, in above-mentioned fire proof power cable, the inner insulating layer is synthetic mica tape.
Preferably, in above-mentioned fire proof power cable, the external insulation layer is the ceramic high polymer extruded, described high poly- Thing is silicon rubber or polyolefin.
Preferably, in above-mentioned fire proof power cable, the mineral matter rope is asbestos cord or glass fiber rope.
Preferably, in above-mentioned fire proof power cable, the internal layer fire resistant belt is glass fibre belt.
Preferably, in above-mentioned fire proof power cable, the mineral matter fire proofing material is ceramic high polymer, described high poly- Thing is silicon rubber either polyolefin.
Preferably, in above-mentioned fire proof power cable, the outer layer fire resistant belt is glass fibre belt.
Preferably, in above-mentioned fire proof power cable, the metallic sheath is that stainless steel band, aluminum alloy strip, copper strips or copper are closed Lock armo of choosing any one kind of them in gold ribbon is formed.
Preferably, in above-mentioned fire proof power cable, the environmentally friendly sheath is irradiation low-smoke halogen-free polyolefin sheath.
The beneficial effect of technical solutions of the utility model is:
1st, the insulating barrier of cable is collectively formed in the utility model by two-sided synthetic mica tape, ceramic high polymer;Extrude Ceramic high polymer not only can effectively solve former fireproof cable and insulate the defect of moisture-sensitive, and ceramic high polymer is heated " crust " effect can effectively solve the defect that mica tape is heated into shed powder.
2nd, ectonexine fire resistant belt and ceramic high polymer composition " sandwich " fireprotection layer in the utility model, it may have heated " crust " is acted on, and can effectively protect cable body.
3rd, original drawing copper tubes and the vertical bag welding of copper strips are replaced by metal tape lock armo in the utility model, makes cable Flexibility is greatly improved, while the production technology is not by length limitation, transition joint is less.
4th, supplementary insulation separation layer and oversheath use exposed material in the utility model, can greatly improve cable Heat resistance, mechanical performance and water resistance.
5th, the utility model all material uses environment-friendly materials, does not produce pollution to environment.
Brief description of the drawings
Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings, wherein:
Fig. 1 is the structural representation of the utility model fire proof power cable;
Sequence number in figure:1st, stranded conductor, 2, inner insulating layer, 3, external insulation layer, 4, mineral matter rope, 5, internal layer fire resistant belt, 6, Mineral matter fire proofing material, 7, outer layer fire resistant belt, 8, metallic sheath, 9, environmentally friendly sheath.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model embodiment is carried out to have understood Whole description, it is clear that described embodiment is only the schematical part embodiment of the utility model, and it is not used to limit Fixed scope of the present utility model, any those skilled in the art institute on the premise of the utility model design and principle is not departed from The equivalent variations made and modification, all should belong to the scope of the utility model protection.
Referring to Fig. 1, in figure, the utility model fire proof power cable, including stranded conductor 1, wrapped inner insulating layer 2 outside conductor With external insulation layer 3.The core of some Shu Hanyou external insulations layers is twisted into outside cable core, cable core gap filling mineral matter rope 4, cable core Wrapped outer layer fire resistant belt 7 outside mineral matter fire proofing material 6, fire proofing material is extruded outside wrapped internal layer fire resistant belt 5, internal layer fire guard, it is resistance to There is environmentally friendly sheath 9 outside the outer metallic sheath 8 with lock armo of fire band, metallic sheath.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the stranded conductor 1 is annealed copper Line is stranded to be formed, and is the stranded copper conductor pressed.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the inner insulating layer 2 is synthesis cloud Master tape, is completed, it is ensured that the performance of cable is stable using bull winding machine is once wrapped.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the external insulation layer 3 is to extrude Ceramic high polymer, the high polymer can be silicon rubber either polyolefin.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the mineral matter rope 4 is asbestos cord Or glass fiber rope.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the internal layer fire guard 5 is glass Band.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the mineral matter fire proofing material 6 is Ceramic high polymer, the high polymer can be silicon rubber either polyolefin.Ceramic high polymer be using high polymer as base, plus Enter inorganic refractory fire retardant, ceramic additive and various auxiliary agents to be composited, under thermal-flame, can change into rapidly heat-insulated Ceramic-like object, effectively protects cable body.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the outer layer fire resistant belt 7 is glass Band.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the metallic sheath 8 is stainless steel Use of choosing any one kind of them " S " type lock armo in band, aluminum alloy strip, copper strips or copper alloy belt, all linked with one another form.
In the specific embodiment of the utility model one, in above-mentioned fire proof power cable, the environmentally friendly sheath 9 is low to irradiate Need to use high-power electron beam or ultraviolet light irradiation after cigarette halogen-free polyolefin, extruding machine extrusion, polymer is changed into by linear structure Tridimensional network.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and it Identical similar part is cross-referenced between the difference of its embodiment, each embodiment.
To the described above of disclosed embodiment, those skilled in the art are enable to realize or use the utility model.It is right The many places modification of these embodiments is apparent to those skilled in the art, and generic principles defined herein can On the premise of the spirit or scope of utility model are not departed from, to realize in other embodiments.Therefore, the utility model will not These embodiments illustrated herein are limited to, and are to fit to the most wide model consistent with features of novelty with principles disclosed herein Enclose.

Claims (10)

1. a kind of fire proof power cable, including by the stranded cable core of multiple cores, it is characterized in that:The core includes stranded External insulation layer is extruded outside the conductor of structure, conductor outer cladding inner insulating layer, inner insulating layer;The cable core gap is filled with mineral matter Rope, is surrounded with outside internal layer fire resistant belt, internal layer fire resistant belt outside cable core and is extruded with mineral matter fire proofing material, mineral matter fire proofing material it is outer around Being surrounded by outside the metallic sheath outside outer layer fire resistant belt, outer layer fire resistant belt with lock armo, metallic sheath has environmentally friendly sheath.
2. fire proof power cable according to claim 1, it is characterized in that:The conductor forms for annealed copper wire is stranded.
3. fire proof power cable according to claim 1, it is characterized in that:The inner insulating layer is synthetic mica tape.
4. fire proof power cable according to claim 1, it is characterized in that:The external insulation layer is that the ceramic height extruded is poly- Thing, the high polymer is silicon rubber or polyolefin.
5. fire proof power cable according to claim 1, it is characterized in that:The mineral matter rope is asbestos cord or glass fiber rope.
6. fire proof power cable according to claim 1, it is characterized in that:The internal layer fire resistant belt is glass fibre belt.
7. fire proof power cable according to claim 1, it is characterized in that:The mineral matter fire proofing material is that ceramic height is poly- Thing, the high polymer is silicon rubber either polyolefin.
8. fire proof power cable according to claim 1, it is characterized in that:The outer layer fire resistant belt is glass fibre belt.
9. fire proof power cable according to claim 1, it is characterized in that:The metallic sheath be stainless steel band, aluminum alloy strip, Lock armo of choosing any one kind of them in copper strips or copper alloy belt is formed.
10. fire proof power cable according to claim 1, it is characterized in that:The environmentally friendly sheath gathers for irradiation low smoke and zero halogen Alkene sheath.
CN201620860219.3U 2016-08-10 2016-08-10 A kind of fire proof power cable Active CN206363798U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620860219.3U CN206363798U (en) 2016-08-10 2016-08-10 A kind of fire proof power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620860219.3U CN206363798U (en) 2016-08-10 2016-08-10 A kind of fire proof power cable

Publications (1)

Publication Number Publication Date
CN206363798U true CN206363798U (en) 2017-07-28

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Application Number Title Priority Date Filing Date
CN201620860219.3U Active CN206363798U (en) 2016-08-10 2016-08-10 A kind of fire proof power cable

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CN (1) CN206363798U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109346217A (en) * 2018-10-11 2019-02-15 何银亚 A kind of anti-wire structure for earning drawing hot-face insulation
CN110993156A (en) * 2019-10-11 2020-04-10 重庆泰山电缆有限公司 Intelligent flexible fireproof and fire-resistant cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109346217A (en) * 2018-10-11 2019-02-15 何银亚 A kind of anti-wire structure for earning drawing hot-face insulation
CN110993156A (en) * 2019-10-11 2020-04-10 重庆泰山电缆有限公司 Intelligent flexible fireproof and fire-resistant cable

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