CN204946583U - The chain armored fireproofing frequency-changing cable of copper strips - Google Patents
The chain armored fireproofing frequency-changing cable of copper strips Download PDFInfo
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- CN204946583U CN204946583U CN201520547162.7U CN201520547162U CN204946583U CN 204946583 U CN204946583 U CN 204946583U CN 201520547162 U CN201520547162 U CN 201520547162U CN 204946583 U CN204946583 U CN 204946583U
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Abstract
The chain armored fireproofing frequency-changing cable of the utility model copper strips, comprises three master cores and three zero line cores, and each root master core comprises master core conductor and wrapped master core insulating barrier outside master core conductor; Each root zero line core comprises zero line core conductor and wrapped zero line core insulation layer outside zero line core conductor; Three master cores are triangular in shape symmetrical, symmetrical formation stranding triangular in shape in the middle of three master core gaps described in three zero line cores embed; The outer wrapping lining-layer of described stranding; Copper ribbon continuous lock armouring shielding fireprotection layer is provided with outside described inner covering.Copper strips chain armouring shielding fireprotection layer is the chain sheathed structure layer of copper strips, the bending property of effective raising cable, have the function of screen and fireprotection layer concurrently, while the anti-electromagnetic signal interference of guarantee, cable fire grade can be brought up to 1000 DEG C by 750 DEG C, effectively can ensure the circuit integrality of cable under fire situation, ensure cable safe and stable operation in large-scale construction engineering, and there is halogen-free environmental characteristic.
Description
Technical field
The utility model relates to field of cables, particularly the chain armored fireproofing frequency-changing cable of a kind of copper strips.
Background technology
Along with the high development of China's economy and the human rights, all orders of society more and more payes attention to security against fire, fire electricity line becomes the important development direction of Chinese safe electric energy drive technology gradually, according to statistics: in recent years in all kinds of fire electrically caused of China, have more than 60% to be caused by electric wire Luo (electric wire), bring immeasurable loss to personal safety and property; As can be seen here, safety fire fighting cable has become the most important thing in safety fire fighting work.
At present, for the process structure of common fire prevention Cable for frequency changer, still general copper core conductor, conductor is outer adds insulating barrier around mica, wrapped (or proof copper-wire braided) screen of copper strips and galvanized steel strip is wrapped makes armour, plastics are as oversheath, this kind of cable can not spontaneous combustion, there is certain resistance to fire action, certain electric power can be maintained in a fire, communication time, but this kind of cable also has very large deficiency, poisonous gas can be given out in a fire and affect the smog etc. of sight line, also mortal injury is brought to personnel while gaining time for evacuating personnel and rescue.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, a kind of fire prevention Cable for frequency changer is provided, had both had smokeless, nontoxic environmental protection characteristic such as grade, there is again anti-shower water and anti-heavy impact, simultaneously can normal power supply more than 180 minutes under 1000 DEG C of Fire Conditions.Be specially adapted in rated voltage 3kV and the adverse circumstances such as following public building, smelting iron and steel high temperature industry anti-electromagnetic interference, public fire protection, place that fire safety demands is high.
For achieving the above object, the utility model have employed following technical scheme:
The chain armored fireproofing frequency-changing cable of a kind of copper strips, comprise three master cores and three zero line cores, each root master core comprises master core conductor 1 and wrapped master core insulating barrier 2 outside master core conductor 1; Each root zero line core comprises zero line core conductor 5 and wrapped zero line core insulation layer 6 outside zero line core conductor 5; Described three master cores are triangular in shape symmetrical, symmetrical formation stranding triangular in shape in the middle of three master core gaps described in three zero line cores embed; The outer wrapping lining-layer 3 of described stranding; Copper ribbon continuous lock armouring shielding fireprotection layer 4 is provided with outside described inner covering 3.
Further, the equal independent grounding of described three-phase zero line.
Further, described master core insulating barrier 2 and zero line core insulation layer 6 are two-sided synthetic mica belt.
Further, described inner covering 3 is two-sided synthetic mica belt.
Further, described master core conductor 1 and zero line core conductor 5 are the stranded conductor of copper free wire.
The utility model fire prevention frequency-changing cable adopts three symmetrical master cores triangular in shape, three zero line cores embed symmetrical 3+3 structure triangular in shape in the middle of three master core gaps, utilize the interchangeability of wire, there is better electromagnetic compatibility, the odd frequency in high order harmonic component can be offset, improve the anti-interference of fire prevention frequency-changing cable, reduce the electromagnetic radiation in whole system, eliminate the noise that leakage current causes, improve the balance of three-phase alternating current, the electrostatic screen of cable can be realized simultaneously; Copper strips chain armouring shielding fireprotection layer 4 adopts the chain sheathed structure of copper strips, the bending property of effective raising cable, have the function of screen and fireprotection layer concurrently, while the anti-electromagnetic signal interference of guarantee, cable fire grade can be brought up to 1000 DEG C by 750 DEG C, effectively can ensure the circuit integrality of cable under fire situation, ensure cable safe and stable operation in large-scale construction engineering, there is smokeless nontoxic environmental protection characteristic such as grade, also there is the shock proof characteristic of waterproof simultaneously.Triple line all adopts independent grounding mode, ensure that the reliability of ground connection.Master core insulating barrier and zero line core insulation layer adopt two-sided synthetic mica as insulating barrier, at high temperature not easy to crack as inorganic matter, embrittlement can not be produced, insulation electrical performance can be met, can ensure cable fire effect again, two-sided synthetic mica tape substantially increases conductor long-term work serviceability temperature as insulating barrier simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the chain armored fireproofing frequency-changing cable of the utility model copper strips
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 provides, further illustrate the embodiment of the chain armored fireproofing frequency-changing cable of copper strips of the present utility model.The chain armored fireproofing frequency-changing cable of copper strips of the present utility model is not limited to the description of following examples.
As shown in Figure 1, the chain armored fireproofing frequency-changing cable of copper strips of the present utility model, comprises three master cores and three zero line cores, and each root master core comprises master core conductor 1 and wrapped master core insulating barrier 2 outside master core conductor 1, each root zero line core comprises zero line core conductor 5 and wrapped zero line core insulation layer 6 outside zero line core conductor 5, described three master cores are triangular in shape symmetrical, symmetrical formation stranding triangular in shape in the middle of three master core gaps described in three zero line cores embed, the outer wrapping lining-layer 3 of described stranding, be provided with copper ribbon continuous lock armouring shielding fireprotection layer 4 the utility model fire prevention frequency-changing cable outside described inner covering 3 and adopt three symmetrical master cores triangular in shape, three zero line cores embed symmetrical 3+3 structure triangular in shape in the middle of three master core gaps, utilize the interchangeability of wire, there is better electromagnetic compatibility, the odd frequency in high order harmonic component can be offset, improve the anti-interference of fire prevention frequency-changing cable, reduce the electromagnetic radiation in whole system, eliminate the noise that leakage current causes, improve the balance of three-phase alternating current, the electrostatic screen of cable can be realized simultaneously, cable fire grade brings up to 1000 DEG C by 750 DEG C, has smokeless nontoxic environmental protection characteristic such as grade, also has the shock proof characteristic of waterproof simultaneously.
As shown in Figure 1, the equal independent grounding of described three-phase zero line.Triple line all adopts independent grounding mode, ensure that the reliability of ground connection.Described master core conductor 1 and zero line core conductor 5 form through wire drawing and annealing is stranded for high purity oxygen free copper.Described master core insulating barrier 2 and zero line core insulation layer 6 are two-sided synthetic mica belt.Master core insulating barrier 2 and zero line core insulation layer 6 adopt two-sided synthetic mica as insulating barrier, at high temperature not easy to crack as inorganic matter, embrittlement can not be produced, insulation electrical performance can be met, can ensure cable fire effect again, two-sided synthetic mica tape substantially increases conductor long-term work serviceability temperature as insulating barrier simultaneously.Described inner covering 3 is two-sided synthetic mica belt.After the outer wrapping lining-layer 3 of stranding, carry out drying process through baking oven, the insulation resistance that can effectively prevent cable from causing because making moist declines.Described copper strips chain armouring shielding fireprotection layer 4 is not provided with plastic sheath.
The following describes the manufacture process of the chain armored fireproofing frequency-changing cable of copper strips of the present utility model.
First respectively with high purity oxygen free copper through stranded master core conductor 1 and the zero line core conductor 5 making cable of wire drawing and annealing, outside three master core conductors 1 and three zero line core conductors 5, wrapped master core insulating barrier 2 and zero line core insulation layer 6 make master core and the zero line core of cable respectively, described master core insulating barrier 2 and zero line core insulation layer 6 adopt two-sided synthetic mica belt, two-sided synthetic mica belt is at high temperature not easy to crack as inorganic matter, embrittlement can not be produced, insulation electrical performance can be met, cable fire effect can be ensured again, two-sided synthetic mica tape substantially increases conductor long-term work serviceability temperature as insulating barrier simultaneously, three master cores are triangular in shape symmetrical, symmetrical formation stranding triangular in shape in the middle of three master core gaps described in three zero line cores embed, three zero line cores embed symmetrical 3+3 structure triangular in shape in the middle of three master core gaps, utilize the interchangeability of wire, there is better electromagnetic compatibility, the odd frequency in high order harmonic component can be offset, improve the anti-interference of fire prevention frequency-changing cable, reduce the electromagnetic radiation in whole system, eliminate the noise that leakage current causes, improve the balance of three-phase alternating current, the electrostatic screen of cable can be realized simultaneously, after stranding, after the outer wrapping lining-layer 3 of stranding, carry out drying process through baking oven, the insulation resistance that can effectively prevent cable from causing because making moist declines, the outer wrapped copper strips of inner covering 3 chain armouring shielding fireprotection layer 4, described copper strips chain armouring shielding fireprotection layer 4 is the chain sheathed structure layer of copper strips, the bending property of effective raising cable, have the function of screen and fireprotection layer concurrently, while the anti-electromagnetic signal interference of guarantee, cable fire grade can be brought up to 1000 DEG C by 750 DEG C, effectively can ensure the circuit integrality of cable under fire situation, ensure cable safe and stable operation in large-scale construction engineering, and there is halogen-free environmental characteristic.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. the chain armored fireproofing frequency-changing cable of copper strips, it is characterized in that: comprise three master cores and three zero line cores, each root master core comprises master core conductor (1) and wrapped at master core conductor (1) master core insulating barrier (2) outward; Each root zero line core comprises zero line core conductor (5) and wrapped at zero line core conductor (5) zero line core insulation layer (6) outward; Described three master cores are triangular in shape symmetrical, symmetrical formation stranding triangular in shape in the middle of three master core gaps described in three zero line cores embed; The outer wrapping lining-layer (3) of described stranding; Copper ribbon continuous lock armouring shielding fireprotection layer (4) is provided with outside described inner covering (3).
2. the chain armored fireproofing frequency-changing cable of copper strips according to claim 1, is characterized in that: described three equal independent groundings of zero line.
3. the chain armored fireproofing frequency-changing cable of copper strips according to claim 1, is characterized in that: described master core insulating barrier (2) and zero line core insulation layer (6) are two-sided synthetic mica belt.
4. the chain armored fireproofing frequency-changing cable of copper strips according to claim 1, is characterized in that: described inner covering (3) is two-sided synthetic mica belt.
5. the chain armored fireproofing frequency-changing cable of copper strips according to claim 1, is characterized in that: described master core conductor (1) and zero line core conductor (5) are the stranded conductor of copper free wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547162.7U CN204946583U (en) | 2015-07-23 | 2015-07-23 | The chain armored fireproofing frequency-changing cable of copper strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547162.7U CN204946583U (en) | 2015-07-23 | 2015-07-23 | The chain armored fireproofing frequency-changing cable of copper strips |
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| CN204946583U true CN204946583U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520547162.7U Active CN204946583U (en) | 2015-07-23 | 2015-07-23 | The chain armored fireproofing frequency-changing cable of copper strips |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448840A (en) * | 2016-10-27 | 2017-02-22 | 成都启立辰智科技有限公司 | Wear and dampness resistant environmentally friendly cable |
| CN108806856A (en) * | 2018-07-21 | 2018-11-13 | 江苏东强股份有限公司 | Efficient fire resisting heat dissipation cable |
-
2015
- 2015-07-23 CN CN201520547162.7U patent/CN204946583U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448840A (en) * | 2016-10-27 | 2017-02-22 | 成都启立辰智科技有限公司 | Wear and dampness resistant environmentally friendly cable |
| CN108806856A (en) * | 2018-07-21 | 2018-11-13 | 江苏东强股份有限公司 | Efficient fire resisting heat dissipation cable |
| CN108806856B (en) * | 2018-07-21 | 2023-11-17 | 江苏东强股份有限公司 | High-efficiency fire-resistant heat-dissipation cable |
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