CN104090220A - Novel serial-connection arc test method and device for fault arc detection - Google Patents
Novel serial-connection arc test method and device for fault arc detection Download PDFInfo
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- CN104090220A CN104090220A CN201410173850.1A CN201410173850A CN104090220A CN 104090220 A CN104090220 A CN 104090220A CN 201410173850 A CN201410173850 A CN 201410173850A CN 104090220 A CN104090220 A CN 104090220A
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a novel serial-connection arc test method and device for fault arc detection. The device includes a cable A and a cable B. The cable A is externally wrapped with a layer of insulating layer A and the cable B is externally wrapped with a layer of insulating layer B. A wire core A is included in the cable A. Stripped insulating layers in the middle of the cable A and cable B are filled with carbon powder. The stripped insulating layers in the middle of the cables are filled with the carbon powder and after current is externally applied, a stable carbonized channel is formed and an arc is generated so that test time is shortened and arc strength and time demands are met under a condition of different test currents and thus test success rate is improved and the operation is simple and convenient; and on the basis that a large quantity of toxic substances such as dioxin, hydrogen chloride and benzene ring and the like are not generated, a test environment is not affected so that the method and device are safe and environment friendly.
Description
Technical field
The present invention relates to arc-detection field, especially relate to a kind of novel fault arc-detection serial arc test method and device.
Background technology
Along with up-to-dateness improves day by day, the application such as electrical equipment, communication apparatus is more and more, and the loss that electrical fire causes is also increasing; According to statistics; electrical fire is in first of all kinds of cause of fire; in causing the electric reason of these accidents; arc fault is one of chief reason; this is because traditional isolating switch can only be protected the situation of electric leakage, overcurrent and short circuit, and many serious fire failures are caused by the fault electric arc lower than rated current often.
At fault electric arc detection field, the manufacture of carbonized path be very crucial be also a very unmanageable problem, the method for making of current domestic carbonized path, derive from the 40th in U.S. AN/UL1699-2008 standard, the domestic entity and individual that are engaged in this respect research are also the way of quoting in this standard substantially.Specific practice is summarized as: in cable sample, apply 15kV ± 10% high pressure, 10 seconds ON and 10 seconds OFF carry out repeatedly, transformer provides the electric current of 30mA, by the insulation part of cable sample, create carbonization guiding path, but the method exists that the carbonization passage forming is unstable, success ratio is low, need the assistance of high pressure, safe not, and can produce the noxious materials such as a large amount of dioxin, hydrogen chloride, phenyl ring, energy-conserving and environment-protective not.
Summary of the invention
The first object of the present invention is to provide a kind of novel fault arc-detection serial arc test method, utilize a kind of New Arc test method of the present invention, need not insulation course carbonization be formed to carbonization guiding path by the method for high pressure, directly carbon dust is added to the carbon passage that obtains conduction between core A and core B bare wire, shortened the standard testing time.
The second object of the present invention is to provide a kind of novel fault arc-detection serial arc test unit, utilize a kind of New Arc test unit of the present invention, what can add carbon dust quantity by control need not, and the size of carbon powder particle material, control arc duration, intensity, meet the requirement of AFDD test.
For achieving the above object, a kind of novel fault arc-detection serial arc test method and device, comprise cable A and cable B, described cable A outer wrapping one layer insulating A, described cable B outer wrapping one layer insulating B, described cable A includes core A, and described cable B includes core B, and described cable A and cable B are by peeling off adjacent wires intermediate insulating layer A and insulation course B is filled with carbon dust.
Described cable A and cable B are filled with carbon dust by peeling off adjacent wires intermediate insulating layer, described carbon dust adopts fine particle to fill up the exposed portion that cable A and cable B peel off, and prevent that by outer wrapping insulation course carbon dust from dropping, can be different according to line current ability to bear, quantize to change carbon dust number and carbon powder particle size.
As improvement, described cable A and cable B exposed part external application PVC adhesive plaster and glass fibre parcel, the exposed part of described PVC adhesive plaster and the cable A of glass fiber winding and cable B is two-layer, and ground floor is wound around half of core, add after carbon dust, the second layer is wound around second half of residue core.
As improvement, the 15mm place, two ends that described cable A and cable B are filled with carbon dust part is tied with respectively PVC adhesive plaster and glass fibre, and 220V AC power live wire and zero line are accessed respectively in the core two ends of described cable A and cable B.
Fault arc detection device arc test process comprises: the core A of cable A and cable B exposed part fully contacts with carbon dust with core B, outer wrapping PVC adhesive plaster and glass fibre prevent that carbon dust from dropping, by additional heavy current effect, make the exposed part of core A and core B and carbon dust produce carbonization guiding path and electric arc.
By directly carbon dust being added to the carbon passage that obtains conduction between wire bare wire, need not insulation course carbonization be formed to carbonization guiding path by the method for high pressure, make the carbonization passage of formation more stable, have higher success rate; By the filling of clear and definite physical and chemical performance carbon, can quantize the filling of carbon dust, make analysis and research have clear and definite foundation, and test have more repeatability and science; Because the carbonization passage producing is in wire exposed locations, applicable to the wire of different wire diameter sizes, because the passage of peeling off of wire can be big or small according to the increase and decrease of circuit actual conditions, can be used for various single condctors and multicore cable classification simultaneously.
Compare traditional arc test device, the present invention fills carbon dust mode by cut exposed part on cable core A and core B forms stable carbonization passage and produces electric arc, shortened the test duration, can the in the situation that of different tests electric current, meet the requirement to arc stiffness and time, improve success of the test rate, easy and simple to handle, and can not produce on the noxious materials such as a large amount of dioxin, hydrogen chloride, phenyl ring, to experimental enviroment without environmental impact, safety and environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of novel fault arc-detection serial arc test method and device.
1, cable A, 2, cable B, 3, insulation course A, 4, insulation course B, 5, core A, 6, core B, 7, carbon dust, 8, PVC adhesive plaster and glass fibre.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
A kind of novel fault arc-detection serial arc test method and device as shown in Figure 1, comprise cable A1 and cable B2, described cable A1 outer wrapping one layer insulating A3, described cable B2 outer wrapping one layer insulating B4, described cable A1 includes core A5, and described cable B2 includes core B6; Cable A1 and cable B2 are filled with carbon dust 7 by peeling off adjacent wires intermediate insulating layer, and described carbon dust 7 adopts fine particles to fill up the exposed part that cable A1 and cable B2 peel off; Cable A1 and cable B2 exposed part external application PVC adhesive plaster and glass fibre 8 parcels, the cable A1 that described PVC adhesive plaster and glass fibre 8 are wound around and the exposed part of cable B2 are two-layer, ground floor is wound around half of core A5 and core B6, add after carbon dust 7, the second layer is wound around second half of residue core A5 and core B6; The 15mm place, two ends that cable A1 and cable B2 are filled with carbon dust 7 parts is tied with respectively PVC adhesive plaster and glass fibre 8, and 220V AC power live wire and zero line are accessed respectively in described core A5 and core B6 two ends.
Serial arc test method detailed process is: the core A5 of cable A1 and cable B2 exposed part fully contacts with carbon dust 7 with core B6, outer wrapping PVC adhesive plaster and glass fibre 8 prevent that carbon dust 7 from dropping, by additional heavy current effect, make the exposed part of core A5 and core B6 and carbon dust 7 produce carbonization guiding path and electric arc.
Owing to being peelled off insulated wire skin in the middle of two adjacent wires, between exposed wire, directly fill carbon dust 7 and form carbonization passage, need not insulation course carbonization be formed to carbonization guiding path by the method for high pressure, shorten the standard testing time, make test have more repeatability and science, by control, add the difference of carbon dust 7 quality of materials simultaneously, and the size of carbon dust material particle, control arc duration, intensity, meet the requirement of AFDD test.
Claims (4)
1. a novel fault arc-detection serial arc test method and device, comprise cable A1 and cable B2, described cable A1 outer wrapping one layer insulating A3, described cable B2 outer wrapping one layer insulating B4, described cable A1 includes core A5, described cable B2 includes core B6, and the insulation course A3 and the insulation course B4 that in the middle of described cable A1 and cable B2, peel off are filled with carbon dust 7.
2. a kind of novel fault arc-detection serial arc test method according to claim 1 and device, it is characterized in that: described cable A1 and cable B2 exposed part external application PVC adhesive plaster and glass fibre 8 parcels, the cable A1 that described PVC adhesive plaster and glass fibre 8 are wound around and the exposed part of cable B2 are two-layer, ground floor is wound around half of core A5 and core B6, add after carbon dust 7, the second layer is wound around second half of residue core A5 and core B6.
3. a kind of novel fault arc-detection serial arc test method according to claim 1 and device, it is characterized in that: the 15mm place, two ends that described cable A1 and cable B2 are filled with carbon dust 7 parts is tied with respectively PVC adhesive plaster and glass fibre 8,220V AC power live wire and zero line are accessed respectively in described core A5 and core B6 two ends.
4. an arc method for measuring comprises: the core A5 of cable A1 and cable B2 exposed part fully contacts with carbon dust 7 with core B6, outer wrapping PVC adhesive plaster and glass fibre 8 prevent that carbon dust 7 from dropping, by additional heavy current effect, make the exposed part of core A5 and core B6 and carbon dust 7 produce carbonization guiding path and electric arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173850.1A CN104090220A (en) | 2014-04-28 | 2014-04-28 | Novel serial-connection arc test method and device for fault arc detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173850.1A CN104090220A (en) | 2014-04-28 | 2014-04-28 | Novel serial-connection arc test method and device for fault arc detection |
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| CN104090220A true CN104090220A (en) | 2014-10-08 |
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| CN201410173850.1A Pending CN104090220A (en) | 2014-04-28 | 2014-04-28 | Novel serial-connection arc test method and device for fault arc detection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110111660A (en) * | 2019-05-22 | 2019-08-09 | 安徽升隆电气有限公司 | A kind of electric arc simulation demonstrating apparatus |
| CN110221187A (en) * | 2019-06-20 | 2019-09-10 | 应急管理部四川消防研究所 | A kind of charing path sample and preparation method thereof |
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| US7307211B1 (en) * | 2006-07-31 | 2007-12-11 | Coleman Cable, Inc. | Served braid leakage current detecting cable |
| CN102279339A (en) * | 2010-05-10 | 2011-12-14 | 伊顿公司 | Apparatus and method to detect a series arc fault of an electrical circuit |
| CN203117322U (en) * | 2013-01-21 | 2013-08-07 | 宁波习羽电子发展有限公司 | Fault arc carbonization track testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110111660A (en) * | 2019-05-22 | 2019-08-09 | 安徽升隆电气有限公司 | A kind of electric arc simulation demonstrating apparatus |
| CN110221187A (en) * | 2019-06-20 | 2019-09-10 | 应急管理部四川消防研究所 | A kind of charing path sample and preparation method thereof |
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Application publication date: 20141008 |