CN205789153U - Insulation irradiation fireproof cable - Google Patents
Insulation irradiation fireproof cable Download PDFInfo
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- CN205789153U CN205789153U CN201620472306.1U CN201620472306U CN205789153U CN 205789153 U CN205789153 U CN 205789153U CN 201620472306 U CN201620472306 U CN 201620472306U CN 205789153 U CN205789153 U CN 205789153U
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Abstract
A kind of insulation irradiation fireproof cable, including multiply cable core, described cable core includes conductor, fireproof heat-insulating layer, IXPE insulating barrier and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier, the outer wrapped fireproof heat-insulating layer of described conductor, the outer double-layer coextrusion of described fireproof heat-insulating layer has IXPE insulating barrier and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier, and between cable core, it is filled with mineral-filled layer, outside described mineral-filled layer, is sequentially provided with lapping layer and oversheath.This utility model passes through conductor and fireproof heat-insulating layer so that cable has bending property, fire resistance and Halogen performance, and can meet various environment lays requirement.Additionally, by double-layer insulating structure, not only increase material thermal ageing resistant performance, it is ensured that the service life of cable, and the safety and reliability of cable can be improved.
Description
Technical field
This utility model relates to technical field of cable, particularly a kind of insulation irradiation fireproof cable.
Background technology
Along with social economy's development at a high speed, common cable can not meet urban and rural buildings, large common facility and important place etc., and the fire that the electric short circuit caused because cable is aging causes the most increasingly is clear to, and the security incident caused is consequently increased.Existing insulated cable can not reach and build the same life-span, the most aging and cause fire so that the person and property safety can not get ensureing.And existing insulated cable uses material easily to pollute environment, is unfavorable for the saving of environmental protection and resource.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of fire prevention of insulating, environment friendly and pollution-free, the insulation irradiation fireproof cable of life-span length.
For achieving the above object, this utility model adopts the technical scheme that
A kind of insulation irradiation fireproof cable, including multiply cable core 7, described cable core 7 includes conductor 1, fireproof heat-insulating layer 2, IXPE insulating barrier 3 and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier 4, the described outer wrapped fireproof heat-insulating layer 2 of conductor 1, the described outer double-layer coextrusion of fireproof heat-insulating layer 2 has IXPE insulating barrier 3 and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier 4, and between cable core 7, it is filled with mineral-filled layer 8, outside described mineral-filled layer 8, is sequentially provided with lapping layer 5 and oversheath 6.
Optionally, described conductor 1 is that two classes press stranded copper conductor and cross section is regular hexagon.
Optionally, described fireproof heat-insulating layer 2 is at the outer overlapping wrapped multilamellar phlogopite mineral insulation band of conductor 1.
Optionally, the internal layer of fireproof heat-insulating layer 2 outer double-layer coextrusion structure is 125 DEG C of IXPE insulating barriers 3, and outer layer is 125 DEG C of irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barriers 4.
Optionally, described mineral-filled layer 8 is magnesium hydroxide inorganic mineral metal hydrate packed layer.
Optionally, described lapping layer 5 is double-deck low smoke and zero halogen band overlap lapping layer.
Optionally, described oversheath 6 is irradiation crosslinking halogen-free low-smoke flame-proof polyolefin oversheath.
Optionally, including three strands of cable cores 7, and cable core 7 is arranged in isosceles triangle.Insulation irradiation fireproof cable of the present utility model presses stranded conductor and fireproof heat-insulating layer by two classes so that cable has bending property, fire resistance and Halogen performance, and can meet various environment lays requirement.In addition, pass through double-layer insulating structure, it is ensured that the physical property of cable, electric property and low smoke and zero halogen performance, not only increase material thermal ageing resistant performance, ensure that the service life of cable, and the most electric security performance of cable and unfailing performance can be greatly improved.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of insulation irradiation fireproof cable of the present utility model.
In figure: 1-conductor, 2-fireproof heat-insulating layer, 3-IXPE insulating barrier, 4-irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier, 5-lapping layer, 6-oversheath, 7-cable core, the mineral-filled layer of 8-.
Detailed description of the invention
Provide embodiment of the present utility model below in conjunction with accompanying drawing, further illustrate insulation irradiation fireproof cable detailed description of the invention of the present utility model.Insulation irradiation fireproof cable of the present utility model is not limited to the following description.
As shown in Figure 1, insulation irradiation fireproof cable of the present utility model, including multiply cable core 7, described cable core 7 includes conductor 1, fireproof heat-insulating layer 2, IXPE insulating barrier 3 and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier 4, the described outer wrapped fireproof heat-insulating layer 2 of conductor 1, the described outer double-layer coextrusion of fireproof heat-insulating layer 2 has IXPE insulating barrier 3 and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier 4, and between cable core 7, it is filled with mineral-filled layer 8, outside described mineral-filled layer 8, is sequentially provided with lapping layer 5 and oversheath 6.nullConcrete，Conductor 1 is two class compacted stranded conductors，Stranded conductor resistance should meet GB/T 3956-2008 standard-required，Fireproof heat-insulating layer 2 is at the outer overlapping wrapped multilamellar phlogopite mineral insulation band of conductor 1，Every ply rate is at 25%-30%，Cable core 7 is made to have preferable fire resistance，Insulating barrier outside fireproof heat-insulating layer 2 uses cable for nuclear power station Technology、Double-layer insulating structure and irradiation crosslinking processes，Ectonexine extrudes 125 DEG C of IXPE insulating barriers 3 and 125 DEG C of irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barriers 4 respectively，Within heat after insulation irradiation extends in 75%，Mineral-filled layer 8 outside around being surrounded by lapping layer 5，Described lapping layer 5 is double-deck low smoke and zero halogen band overlap lapping layer，Every ply rate is more than or equal to 15%，Thus there is good coated mineral packed layer 8 and the effect of isolation oversheath 6，Oversheath 6 has been extruded in the outside of lapping layer 5，Described oversheath 6 is 125 DEG C of irradiation crosslinking halogen-free low-smoke flame-proof polyolefin oversheaths of excellent performance，Within heat after oversheath 6 irradiation extends in 75%，The effect of good fire-proof cladding can be played.This utility model presses stranded conductor 1 and fireproof heat-insulating layer 2 by two classes so that cable has bending property, fire resistance and Halogen performance, and can meet various environment lays requirement.In addition, pass through double-layer insulating structure, it is ensured that the physical property of cable, electric property and low smoke and zero halogen performance, not only increase material thermal ageing resistant performance, ensure that 70 year service life of cable, and the most electric security performance of cable and unfailing performance can be greatly improved.
Preferably, this utility model includes three strands of cable cores 7, and cable core 7 is arranged in isosceles triangle, conductor 1 is that two classes press stranded copper conductor and cross section is regular hexagon, and mineral-filled layer 8 is magnesium hydroxide inorganic mineral metal hydrate packed layer, and magnesium hydroxide resolves into water and magnesium oxide when meeting naked light, water plays heat absorption, the effect of cooling, magnesium oxide becomes the magnesium oxide of solid through high temperature sintering, is tightly coated on the surface of cable core, and preferably isolation air is again introduced into cable core.The refractory temperature of magnesium oxide is up to 2800 DEG C, there is good cooling, fire prevention, the effect of oxygen barrier, and this fireproofing of cable characteristic can reach C level fire test requirement in BS6387, disclosure satisfy that the requirement of the fire protecting performance laying environment, additionally cable is except by bunchy fire-retardant A class (B class, C class, the D class) combustion test of regulation in GB/T 18380-2008 " cable and optical cable combustion test under flame condition ", may also reach up the regulation requirement of super A class (nonmetal volume >=28L/m, 4A).
Insulation irradiation fireproof cable in this utility model, both can ensure that it possessed the power supply quality of excellence, there is again the feature of low smoke and zero halogen, long-life, environmental protection, also there is fireproof performance, and its usage economy of this type of double-layer coextrusion insulated cable is high, and meet modern architecture electrical design require, environment friendly and pollution-free.
Above content is to combine concrete preferred implementation further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. an insulation irradiation fireproof cable, including multiply cable core (7), it is characterized in that: described cable core (7) includes conductor (1), fireproof heat-insulating layer (2), IXPE insulating barrier (3) and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier (4), described conductor (1) the most wrapped fireproof heat-insulating layer (2), described fireproof heat-insulating layer (2) outer double-layer coextrusion has IXPE insulating barrier (3) and irradiation crosslinking halogen-free low-smoke flame-proof polyolefin insulating barrier (4), and between cable core (7), it is filled with mineral-filled layer (8), lapping layer (5) and oversheath (6) it is sequentially provided with outside described mineral-filled layer (8).
Insulation irradiation fireproof cable the most according to claim 1, it is characterised in that: described conductor (1) is that two classes press stranded copper conductor and cross section is regular hexagon.
Insulation irradiation fireproof cable the most according to claim 1, it is characterised in that: described fireproof heat-insulating layer (2) is at the most overlapping wrapped multilamellar phlogopite mineral insulation band of conductor (1).
Insulation irradiation fireproof cable the most according to claim 1, it is characterized in that: the internal layer of fireproof heat-insulating layer (2) outer double-layer coextrusion structure is 125 DEG C of IXPE insulating barriers (3), outer layer is 125 DEG C of irradiation crosslinking halogen-frees low-smoke flame-proof polyolefin insulating barrier (4).
Insulation irradiation fireproof cable the most according to claim 1, it is characterised in that: described mineral-filled layer (8) is magnesium hydroxide inorganic mineral metal hydrate packed layer.
Insulation irradiation fireproof cable the most according to claim 1, it is characterised in that: described lapping layer (5) is double-deck low smoke and zero halogen band overlap lapping layer.
Insulation irradiation fireproof cable the most according to claim 1, it is characterised in that: described oversheath (6) is irradiation crosslinking halogen-free low-smoke flame-proof polyolefin oversheath.
Insulation irradiation fireproof cable the most according to claim 1, it is characterised in that: include three bursts of cable cores (7), and cable core (7) is arranged in isosceles triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620472306.1U CN205789153U (en) | 2016-05-23 | 2016-05-23 | Insulation irradiation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620472306.1U CN205789153U (en) | 2016-05-23 | 2016-05-23 | Insulation irradiation fireproof cable |
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| Publication Number | Publication Date |
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| CN205789153U true CN205789153U (en) | 2016-12-07 |
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| CN201620472306.1U Active CN205789153U (en) | 2016-05-23 | 2016-05-23 | Insulation irradiation fireproof cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329565A (en) * | 2018-03-06 | 2018-07-27 | 江西太平洋电缆集团有限公司 | Cable insulating materials, flexible mineral insulation fireproof cable |
| CN113192668A (en) * | 2021-04-25 | 2021-07-30 | 华远高科电缆有限公司 | Isolated flexible mineral insulation fireproof cable for nuclear industry |
-
2016
- 2016-05-23 CN CN201620472306.1U patent/CN205789153U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329565A (en) * | 2018-03-06 | 2018-07-27 | 江西太平洋电缆集团有限公司 | Cable insulating materials, flexible mineral insulation fireproof cable |
| CN113192668A (en) * | 2021-04-25 | 2021-07-30 | 华远高科电缆有限公司 | Isolated flexible mineral insulation fireproof cable for nuclear industry |
| CN113192668B (en) * | 2021-04-25 | 2023-02-21 | 华远高科电缆有限公司 | Isolated flexible mineral insulation fireproof cable for nuclear industry |
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