CN204143920U - A kind of aluminium sheath fireproof cable - Google Patents

A kind of aluminium sheath fireproof cable Download PDF

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Publication number
CN204143920U
CN204143920U CN201420566525.7U CN201420566525U CN204143920U CN 204143920 U CN204143920 U CN 204143920U CN 201420566525 U CN201420566525 U CN 201420566525U CN 204143920 U CN204143920 U CN 204143920U
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China
Prior art keywords
sheath
fire
aluminium
thread core
coated
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CN201420566525.7U
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Chinese (zh)
Inventor
赵保森
姚鸣
霍帅营
陈伟
蒲铮
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SICHUAN XINRONG ELECTRIC CABLE CO Ltd
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SICHUAN XINRONG ELECTRIC CABLE CO Ltd
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Abstract

The utility model discloses a kind of aluminium sheath fireproof cable, comprise insulated wire cores, metallic sheath, insulating refractory layer and fire-retardant oversheath, described insulated wire cores comprises conductor thread core and insulating barrier, conductor thread core is coated in insulating barrier, described metallic sheath is coated on outside insulating barrier, insulating refractory layer is coated on outside metallic sheath, fire-retardant oversheath is coated on outside insulating refractory layer, it is characterized in that: described metallic sheath is aluminium embossed sheath, described conductor thread core is at least one, and described insulating barrier is formed by Mica tape.This utility model has that ampacity is large, flexibility is excellent, good, the fire-resistant fire protecting performance of anti-interference is excellent, and the advantage such as safe, reliable, environmentally friendly; In addition, this cable also have moulding process simple, be easy to mounting and installation and the feature of economical.

Description

A kind of aluminium sheath fireproof cable
Technical field
The utility model relates to a kind of cable, particularly relates to a kind of fireproof cable.
Background technology
Along with the development of power industry, people more and more pay attention to power system security, have higher requirement to the safety and reliability of electric wire when ignition.Traditional power cable adopt organic insulating material as: plastics, rubber etc. protect as insulation, cover material, and when circuit catches fire, plastics or rubber blaze up soon, and produce a large amount of smog and other harmful substances, cause compromise greatly human body.Occurred common fire-retardant and low-smoke halogen-free inflaming-retarding cable afterwards, though these cables are nonflammable, and smog obviously reduces when ignition, and the release of harmful substance is also improved, but electric wire circuit just cannot work after ignition.
Although the inorganic mineral insulation fireproof cable in recent years arisen at the historic moment has good fire line, but no matter be inorganic mineral insulation fireproof cable BTTZ, or all because the defect of himself material and structure causes such fireproof cable to have, cost is high, rigidity is excessive and mounting and installation is difficult for inorganic mineral insulation flexible fire-proof cable YTTW, specifically has the defect of the following aspects.
1, the oversheath of BTTZ and YTTW fireproof cable all adopts copper sheath, although this sheath fire line is good, because copper valency is high, than great, when adopting copper sheath, considerably increases the manufacturing cost of cable.Weight on the other hand due to copper is large, and rigidity is strong, causes Product transport, the difficulty of laying and cost all to increase.
2, inorganic mineral insulation fireproof cable BTTZ except cost high and except, also because it adopts magnesium oxide powder to be filled between conductor and sheath, and the magnesium oxide material very easily moisture absorption, therefore its insulating properties is difficult to ensure, particularly two ends and transition joint place.In addition because BTTZ is by annealing, being drawn to regulatory specifications, product structure is rigidity, is not easy to packed and transported and lays, often needing joint in construction, and joint is wasted time and energy and had potential safety hazard.
Though 3, YTTW and BTTZ compares tool certain flexibility, its flexibility far away from aluminium, and through continuous high temperature burning under, the embossing copper of argon arc welding welding may ftracture, the mica playing insulation and resistance to fire action like this can come off in Powdered, and glass wool cloth can hardeningly become fragile, and affects product quality
4, common inorganic mineral insulated cable BTTZ and YTTW outermost layer are copper material and unprotect layer; such cable is when high-temp combustion; line copper sheath is as metal quality; conductivity of heat is better; by very high temperature conduction on insulating barrier, then be transmitted on copper conductor core, cause conductor temperature rise in short-term very large; ampacity reduces rapidly, causes the disaster relief ineffective.
Utility model content
In order to the product cost overcoming the existence of above-mentioned fireproof cable is high; the defect causing ampacity to reduce because conductor temperature is too high when structural flexibility deficiency and fire; the utility model provides that a kind of anti-fire capability is strong, light weight and the lower Novel fireproof cable of manufacturing cost; this fire-resisting cable is when breaking out of fire; under insulating refractory layer and the dual protection of fire-retardant oversheath; the fire resistance of cable considerably increases, can long period normal power supply, adapts to fire-fighting and helps between calamity needs.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of aluminium sheath fireproof cable, comprise insulated wire cores, metallic sheath, insulating refractory layer and fire-retardant oversheath, described insulated wire cores comprises conductor thread core and insulating barrier, conductor thread core is coated in insulating barrier, and described metallic sheath is coated on outside insulating barrier, and insulating refractory layer is coated on outside metallic sheath, fire-retardant oversheath is coated on outside insulating refractory layer, it is characterized in that: described metallic sheath is aluminium embossed sheath, and described insulated wire cores is at least one, and described insulating barrier is formed by Mica tape.
Described fire-retardant oversheath is low-smoke halogen-free polyolefin oversheath.
Described insulating refractory layer is by Ceramic silicon rubber can extruding and form.
The sectional area of described conductor thread core is less than 10mm 2time, conductor thread core is single copper conductor; The sectional area of conductor thread core is at 10mm 2time above, conductor thread core forms by many copper conductors are stranded.
Described insulated wire cores is 1 ~ 5, when insulated wire cores 2 ~ 5 core, is filled with filler in the space between insulated wire cores, and filler is halogen-free flameproof rope.
The cross section of described conductor thread core is circular, fan-shaped or watt shape.
Described aluminium embossed sheath is embossing aluminum pipe.
The utility model has the following advantages relative to prior art:
The utility model comprises insulated wire cores, metallic sheath, insulating refractory layer and fire-retardant oversheath, described insulated wire cores comprises conductor thread core and insulating barrier, conductor thread core is coated in insulating barrier, described metallic sheath is coated on outside insulating barrier, insulating refractory layer is coated on outside metallic sheath, fire-retardant oversheath is coated on outside insulating refractory layer, it is characterized in that: described metallic sheath is aluminium embossed sheath, described conductor thread core is at least one, and described insulating barrier forms by inorganic mineral synthetic mica tape is wrapped.The utility model aluminium embossed sheath instead of original embossing copper sheath, by the change of sheath material, not only greatly reduces the manufacturing cost of cable, reduces the weight of cable, and make cable have splendid flexibility be convenient to transport and lay.And on the other hand because this utility model aluminium embossed sheath fireproof cable is with the resistance to sheath of heat insulation fire and fire-retardant oversheath, under the protection of this duplex sheath, the more simple aluminum-sheathed cable of fire resistance of this cable improves greatly; By fire resistance highest ranking standard---the complete performance test of fire line of British Standard BS6387, what namely 950 DEG C of high-temp combustions were is fire-resistant merely, fire-resistant waterproof, flameproofed impact-resistance are tested, and its fire resistance is not inferior to copper sheath inorganic mineral insulation fireproof cable.Having extruded one deck outside the aluminium sheath of simultaneously the utility model fireproof cable can Ceramic silicon rubber sheath, serves good insulating refractory effect.Can Ceramic silicon rubber be that a kind of emerging fireclay insulating refractory can the thousands of degree high temperature of hot spot; it sinters ceramic-like housing under high temperature action; there is high fire-resistant, heat insulation effect; protection aluminium sheath is not by calcination; allow the electrical insulation properties that cable keeps good; ensure normal power supply, for fire-fighting and rescue has striven for a large amount of time.This utility model cable and the cable such as signal cable, control, when same hoistway lays, under shielding, can not produce interference to other cables owing to there being aluminium sheath.
The sectional area of described conductor thread core is less than 10mm 2time, conductor thread core is single copper conductor; The sectional area of conductor thread core is at 10mm 2time above, conductor thread core forms by many copper conductors are stranded.Owing to adopting mechanization continuous seepage, no matter be single-core cable, or multicore cable, its length can meet distribution length needs, connects, greatly reduce contact impedance and contact fault without the need to centre.Owing to adopting copper conductor to make conductor wire core, and the construction of cable is special, and therefore not only ampacity is large for this cable, and has higher working temperature, can reach more than 250 DEG C.
Described insulated wire cores is 1 ~ 5, when insulated wire cores 2 ~ 5 core, is filled with filler in the space between insulated wire cores, and filler is halogen-free flameproof rope.Can effectively prevent conductor thread core from directly contacting by the effect of gasket for packing, when bending cable, conductor thread core can not contact, can not crimp, damages insulating barrier, affects properties of product.
The utility model insulated heat flame retardant coating is by Ceramic silicon rubber can extruding and form, insulating refractory thickness reaches more than 2mm, size far beyond common can the wrapped thickness of ceramic band many, under normal temperature and normal running conditions, this silicon rubber has certain elasticity, meets to bend to lay requirement; Under high temperature of fire (350-3000 DEG C of flame or nonflame bar) condition, can Ceramic silicon rubber sheath with by Low fire ceramic shape armour; Owing to crusting, pottery is hot non-conductor and fireproof excellent performance, effectively can extend fire resistance period, for fire-fighting provides the more abundant disaster relief time.
The fire-retardant oversheath of the utility model is low-smoke halogen-free polyolefin oversheath, cable so not only can be protected nonflammable in scene of fire, and can meet environmental requirement, ensures the security of the lives and property of the people.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment 1;
Fig. 2 is the sectional view of the utility model embodiment 2.
Fig. 3 is the sectional view of the utility model embodiment 3.
Fig. 4 is the sectional view of the utility model embodiment 4;
Fig. 5 is the sectional view of the utility model embodiment 5.
Fig. 6 is the sectional view of the utility model embodiment 6
Mark 1 in figure, conductor thread core, 2, insulating barrier, 3, filler, 4, aluminium embossed sheath, 5, insulating refractory layer, 6, fire-retardant oversheath.
Embodiment
Embodiment 1
A kind of aluminium sheath fireproof cable, comprise insulated wire cores, aluminium embossed sheath 4, insulating refractory layer 5 and fire-retardant oversheath 6, described insulated wire cores comprises conductor thread core 1 and insulating barrier 2.Conductor thread core 1 is coated in insulating barrier 2, and aluminium embossed sheath is coated on outside insulating barrier 2, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4, and fire-retardant oversheath 6 is coated on outside insulating refractory layer 5.Described conductor thread core 1 forms for many copper conductors are stranded, and conductor thread core only has one, and the cross section of conductor thread core be circle.Described insulating barrier 2 forms by inorganic mineral synthetic mica tape is wrapped; Insulating refractory layer 5 is coated on outside aluminium embossed sheath 4.Described aluminium embossed sheath 4 is embossing aluminum pipe.Described insulating refractory layer 5 is Ceramic silicon rubber to extrude.Described fire-retardant oversheath 6 is low-smoke halogen-free polyolefin oversheath.
Embodiment 2
A kind of aluminium sheath fireproof cable, comprise insulated wire cores, aluminium embossed sheath 4, insulating refractory layer 5 and fire-retardant oversheath 6, described insulated wire cores comprises conductor thread core 1 and insulating barrier 2.Conductor thread core 1 is coated in insulating barrier 2, and filler 3 is filled between insulated wire cores, and aluminium embossed sheath 4 is coated on outside insulating barrier 2, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4, and fire-retardant oversheath 6 is coated on outside insulating refractory layer 5.Described conductor thread core 1 forms for many copper conductors are stranded, and insulated wire cores has four, and the cross section of conductor thread core be circle.Insulating barrier 2 forms by inorganic mineral synthetic mica tape is wrapped, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4.Described aluminium embossed sheath 4 is embossing aluminum pipe.Described packing material is low-smoke non-halogen flame-retardant gasket for packing, and described insulating refractory layer 5 is Ceramic silicon rubber to extrude.Described fire-retardant oversheath 6 is low-smoke halogen-free polyolefin oversheath.
Embodiment 3
A kind of aluminium sheath fireproof cable, comprise insulated wire cores, aluminium embossed sheath 4, insulating refractory layer 5 and fire-retardant oversheath 6, described insulated wire cores comprises conductor thread core 1 and insulating barrier 2.Conductor thread core 1 is coated in insulating barrier 2, and fill 3 and be filled between insulated wire cores, aluminium embossed sheath 4 is coated on outside insulating barrier 2, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4, and fire-retardant oversheath 6 is coated on outside insulating refractory layer 5.Described conductor thread core 1 forms for many copper conductors are stranded, and insulated wire cores has four, and the cross section of the conductor thread core 1 of three insulated wire cores is fan-shaped, and the conductor thread core 1 of an insulated wire cores be circle.Insulating barrier 2 forms by inorganic mineral synthetic mica tape is wrapped, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4.Described aluminium embossed sheath 4 is embossing aluminum pipe.Described packing material is low-smoke non-halogen flame-retardant gasket for packing.Described insulating refractory layer 5 is Ceramic silicon rubber to extrude.Described fire-retardant oversheath 6 is low-smoke halogen-free polyolefin oversheath.
Embodiment 4
A kind of aluminium sheath fireproof cable, comprise insulated wire cores, aluminium embossed sheath 4, insulating refractory layer 5 and fire-retardant oversheath 6, described insulated wire cores comprises conductor thread core 1 and insulating barrier 2.Conductor thread core 1 is coated in insulating barrier 2, and aluminium embossed sheath 4 is coated on outside insulating barrier 2, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4, and fire-retardant oversheath 6 is coated on outside insulating refractory layer 5.Described conductor thread core 1 forms for many copper conductors are stranded, and insulated wire cores has four, and the cross section of conductor thread core is fan-shaped.Insulating barrier 2 forms by inorganic mineral synthetic mica tape is wrapped, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4.Described aluminium embossed sheath 4 is embossing aluminum pipe.Described insulating refractory layer 5 is Ceramic silicon rubber to extrude.Described fire-retardant oversheath 6 is low-smoke halogen-free polyolefin oversheath.
Embodiment 5
A kind of aluminium sheath fireproof cable, comprise insulated wire cores, aluminium embossed sheath 4, insulating refractory layer 5 and fire-retardant oversheath 6, described insulated wire cores comprises conductor thread core 1 and insulating barrier 2.Conductor thread core 1 is coated in insulating barrier 2, and aluminium embossed sheath 4 is coated on outside insulating barrier 2, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4, and fire-retardant oversheath 6 is coated on outside insulating refractory layer 5.Described conductor thread core 1 forms for many copper conductors are stranded, and insulated wire cores has 5, and the cross section of conductor thread core be circular and watt shape, and wherein the cross section of 4 conductor thread cores is a watt shape, and one is circle.Insulating barrier 2 forms by inorganic mineral synthetic mica tape is wrapped, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4.Described aluminium embossed sheath 4 is embossing aluminum pipe.Described insulating refractory layer 5 is Ceramic silicon rubber to extrude.Described fire-retardant oversheath 6 is low-smoke halogen-free polyolefin oversheath.
Embodiment 6
A kind of aluminium sheath fireproof cable, comprise insulated wire cores, aluminium embossed sheath 4, insulating refractory layer 5 and fire-retardant oversheath 6, described insulated wire cores comprises conductor thread core 1 and insulating barrier 2.Conductor thread core 1 is coated in insulating barrier 2, and fill 3 and be filled between insulated wire cores, aluminium embossed sheath 4 is coated on outside insulating barrier 2, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4, and fire-retardant oversheath 6 is coated on outside insulating refractory layer 5.Described conductor thread core 1 is 1 copper conductor, and insulated wire cores has 5, and the cross section of conductor thread core is circular.Insulating barrier 2 forms by inorganic mineral synthetic mica tape is wrapped, and insulating refractory layer 5 is coated on outside aluminium embossed sheath 4.Described aluminium embossed sheath 4 is embossing aluminum pipe.Described packing material is low-smoke non-halogen flame-retardant gasket for packing, and described insulating refractory layer 5 is Ceramic silicon rubber to extrude.Described fire-retardant oversheath 6 is low-smoke halogen-free polyolefin oversheath.

Claims (7)

1. an aluminium sheath fireproof cable, comprise insulated wire cores, metallic sheath, insulating refractory layer and fire-retardant oversheath, described insulated wire cores comprises conductor thread core and insulating barrier, conductor thread core is coated in insulating barrier, and described metallic sheath is coated on outside insulating barrier, and insulating refractory layer is coated on outside metallic sheath, fire-retardant oversheath is coated on outside insulating refractory layer, it is characterized in that: described metallic sheath is aluminium embossed sheath, and described insulated wire cores is at least one, and described insulating barrier is formed by Mica tape.
2. a kind of aluminium sheath fireproof cable according to claim 1, is characterized in that: described fire-retardant oversheath is low-smoke halogen-free polyolefin oversheath.
3. a kind of aluminium sheath fireproof cable according to claim 1 and 2, is characterized in that: described insulating refractory layer is by can Ceramic silicon rubber make.
4. a kind of aluminium sheath fireproof cable according to claim 3, is characterized in that: the sectional area of described conductor thread core is less than 10mm 2time, conductor thread core is single copper conductor; The sectional area of conductor thread core is at 10mm 2time above, conductor thread core forms by many copper conductors are stranded.
5. a kind of aluminium sheath fireproof cable according to claim 1, is characterized in that: described insulated wire cores is 1 ~ 5, when insulated wire cores 2 ~ 5 core, be filled with filler in the space between insulated wire cores, filler is halogen-free flameproof rope.
6. a kind of aluminium sheath fireproof cable according to claim 1, is characterized in that: the cross section of described conductor thread core is circular, fan-shaped or watt shape.
7. a kind of aluminium sheath fireproof cable according to claim 1, is characterized in that: described aluminium embossed sheath is embossing aluminum pipe.
CN201420566525.7U 2014-09-29 2014-09-29 A kind of aluminium sheath fireproof cable Active CN204143920U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109659083A (en) * 2018-12-27 2019-04-19 远东电缆有限公司 A kind of fireproof cable and its manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109659083A (en) * 2018-12-27 2019-04-19 远东电缆有限公司 A kind of fireproof cable and its manufacturing method

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