CN102290758A - Fire-resistant bus duct - Google Patents
Fire-resistant bus duct Download PDFInfo
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- CN102290758A CN102290758A CN2010102042886A CN201010204288A CN102290758A CN 102290758 A CN102290758 A CN 102290758A CN 2010102042886 A CN2010102042886 A CN 2010102042886A CN 201010204288 A CN201010204288 A CN 201010204288A CN 102290758 A CN102290758 A CN 102290758A
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- bus duct
- conductor
- fireproof bus
- fireproof
- fire
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Abstract
The invention discloses a fire-resistant bus duct which comprises a shell, a plurality of conductors and insulating layers, wherein the plurality of conductors are arranged in the shell in parallel and at intervals and are spaced from the shell; each insulating layer is used for covering the exterior of each conductor; and the fire-resistant bus duct also comprises fire-resistant filling materials which are filled among the plurality of conductors and between the conductors and the shell, thereby the insulation and the fire resistance are realized among the plurality of conductors and between the conductors and the shell. The fire-resistant bus duct of the invention has the advantages of strong heat dissipation, good fire-resistance performance, safety and reliability.
Description
Technical field
The present invention relates to a kind of electric power conveying route, more particularly, the present invention relates to a kind of mineral matter fireproof bus duct with good fire resistance.
Background technology
Develop rapidly along with the city, skyscraper is more and more, the building power load sharply increases thereupon, and original electric wire is because its capacity is little, branch is inconvenient, be not easy to reason such as boundling management, and is progressively big by capacity, branch convenient, boundling manages easily that bus duct replaces.Bus duct is widely used in key projects such as the electric power conveying route of fire-fighting fire fighting service and fire-fighting emergent equipment main line, for example be used for important engineerings such as hotel, airport, subway, so the safety and stability performance of bus duct product is most important.
But; bus duct also exists some shortcomings; such as; because arranging, the boundling between the bus duct can produce bigger heat usually; the heat dissipation problem of bus duct also is a hang-up that all the time perplexs the bus duct research staff; if bus duct does not possess necessary heat dispersion,, just bring fire safety hidden danger probably in case the high temperature that the connection busbar in the bus duct is produced can not in time leave.
The refractory material that fireproof bus duct of the prior art adopts mainly contains mica tape, micarex, silicic acid cotton, silicic acid board etc.There is heat dissipation problem in the bus that utilizes this class material to be produced, can't satisfy corresponding fire-resistant requirement; In addition, some material makes moist owing to self absorbs water easily, thereby can't guarantee the good insulation performance performance.
China's utility model patent discloses a kind of low pressure enclosed busbar groove for No. 02218490.2, its cover plate and side plate are made of special flute profile aluminium alloy extrusions, lateral surface vertically sets up 2-4 root reinforcement at the bottom of slot cover, be big flute profile in the middle of the side plate cross section, two is little flute profile, and two sulculus shape notches and big flute profile notch towards opposite.The phase isolation block of bus duct is made of resistant to elevated temperatures Merlon, and phase isolation block is for pegging graft in opposite directions in twos up and down, and the every rectangular hollow form of phase isolation block, its top front and back sides are provided with corrugation shape eyebrow curtain.
In addition, China's utility model patent has disclosed a kind of high temperature resistant bus duct of making of the mica powder insulating base material for No. 94239376.7, by conducting copper, insulating cell, backplate, composition such as housing and cover plate is to be that the uniform winding made of base-material is at the lip-deep insulation lining band of copper bar by mica powder between conducting copper; It is insulating cell and the backplate that base-material is made that mica powder is housed between conducting copper and the metal shell.
And for example, a kind of heat-insulating, fire-preventing bus duct that China's utility model patent is disclosed for No. 94239616.2, it comprises that containing one deck by surrounded surface is the heat insulation armour plug-in unit of base-material compression moulding with the mica powder, the conducting copper that segmentation place is connected by fastening branch separately is installed in the bimetallic housing that has insulation blanket, outer surface that the fire prevention coating is arranged in the interlayer.
Above-mentioned prior art can be born the high temperature in the certain limit, yet above-mentioned prior art adopts Merlon or mica powder material as the insulation heat-barrier material, still can't obtain good insulating refractory performance.Existing bus duct usually can't satisfy the current capacity requirement of GB GB7251.2-2006 and international standard IEC60439.2, also usually can not satisfy the fire-fighting fire resistance requirement of the standard GA/T537-2005 of the Ministry of Public Security.
Therefore, provide a kind of thermal diffusivity strong, have good fire resistance and safe and reliable mineral matter fireproof bus duct becomes the problem that industry need solve.
Summary of the invention
The purpose of this invention is to provide a kind of thermal diffusivity strong, have good fire resistance and a safe and reliable mineral matter fireproof bus duct.
In order to realize above-mentioned goal of the invention, the invention provides a kind of fireproof bus duct, it comprises: housing; Parallel and spaced apart a plurality of conductors in housing, and a plurality of conductor and housing are arranged at interval; And the insulating barrier that coats in each outside of conductor; This fireproof bus duct also comprises and is filled between a plurality of conductors and is filled in refractory filler between conductor and the housing, thereby realizing insulation and fire-resistant between a plurality of conductors and between conductor and housing.
Preferably, refractory filler is the magnesium oxide mineral matter.
In addition, conductor is the rectangle section bar.
Perhaps, conductor is irregular section bar or bending section bar.
Preferably, the quantity of conductor is 4.
Selectively, fireproof bus duct also comprises the PE conductor (protection conductor) that is provided with near housing.
For example, a plurality of fireproof bus ducts connect to form many bus duct platoons at the shell place each other.
Particularly, shell is by cover plate with " [" type side plate is connected to each other and forms, and the end of two bendings of side plate is connected with the end of cover plate respectively, and the position that is connected with cover plate in the end of the bending of side plate is provided with band.
Selectively, cover plate and side plate adopt bolt to be connected and fixed.
In addition, the outside of insulating barrier coats mica paper or mica tape.
The invention has the beneficial effects as follows: (1) the present invention has overcome the existing defective of fireproof bus duct in the prior art, except the current capacity that can satisfy GB GB7251.2-2006 and international standard IEC60439.2 (or existing international standard IEC61439) requires, can also satisfy the fire-fighting fire resistance requirement of the standard GA/T537-2005 of the Ministry of Public Security simultaneously; (2) fireproof bus duct of the present invention adopt the magnesium oxide mineral matter as refractory filler with realize each mutually and the insulation between each and the bus duct metal shell prevent fires, can realize that 950 ℃～1050 ℃ and time are the fire resistance of 60min～240min, fire resistance is good, the degree of safety height fully can be as the electric power conveying route of key construction project and fire-fighting equipment; (3) fireproof bus duct of the present invention has good humidity resistance, has guaranteed good security performance equally.
Below in conjunction with drawings and Examples, further specify the present invention, but the present invention is not limited to these embodiment, any on essence spirit of the present invention improvement or substitute, still belong to scope required for protection in claims of the present invention.
Description of drawings
Fig. 1 is the schematic diagram of single four line bus ducts of the embodiment 1 of fireproof bus duct of the present invention.
Fig. 2 is the schematic diagram of single five line bus ducts of the embodiment 1 of fireproof bus duct of the present invention.
Fig. 3 is the schematic diagram of double four line bus ducts of the embodiment 1 of fireproof bus duct of the present invention.
Fig. 4 is the schematic diagram of double five line bus ducts of the embodiment 1 of fireproof bus duct of the present invention.
Fig. 5 is the schematic diagram of single four line bus ducts of the embodiment 2 of fireproof bus duct of the present invention.
Fig. 6 is the schematic diagram of single five line bus ducts of the embodiment 2 of fireproof bus duct of the present invention.
Fig. 7 is the schematic diagram of double four line bus ducts of the embodiment 2 of fireproof bus duct of the present invention.
Fig. 8 is the schematic diagram of double five line bus ducts of the embodiment 2 of fireproof bus duct of the present invention.
Fig. 9 is the schematic diagram of single four line bus ducts of the embodiment 3 of fireproof bus duct of the present invention.
Figure 10 is the schematic diagram of single five line bus ducts of the embodiment 3 of fireproof bus duct of the present invention.
Figure 11 is the schematic diagram of double four line bus ducts of the embodiment 3 of fireproof bus duct of the present invention.
Figure 12 is the schematic diagram of double five line bus ducts of the embodiment 3 of fireproof bus duct of the present invention.
Figure 13 is the explosive view that adopts the single bus duct device of fireproof bus duct of the present invention.
Figure 14 is the explosive view that adopts the double bus duct device of fireproof bus duct of the present invention.
Embodiment
With reference to Fig. 1-4, fireproof bus duct of the present invention comprise the enclosed busbar groove up and down two ends cover plate 7, surround the side plate 8 that forms the bus duct metal shell jointly with cover plate 7 and be arranged in conductor 1, insulating barrier 2 and refractory filler 4 in the above-mentioned metal shell inner space, conductor 1, insulating barrier 2 and refractory filler 4 integrally closeds are in totally enclosed metal shell.The cross sectional shape of metal shell is a rectangle in the present embodiment, can adopt other shapes as required.
Figure 1 shows that the schematic diagram of single four line bus ducts.Parallel to each other and spaced four conductors 1 in the internal placement of metal shell form busbar.In the present embodiment, conductor 1 adopts the rectangle section bar.The external packets insulating layer coating 2 of every conductor 1 coats mica paper or mica tape in the outside of insulating barrier 2 then, adopts refractory filler 4 to fill between each conductor 1, makes refractory filler 4 that each conductor is separate, to obtain insulation and fire resistance.And also adopt refractory filler 4 to fill between conductor 1 and cover plate 7 and the side plate 8, make between conductor 1 and cover plate 7 and the side plate 8 also separately, insulate and fire resistance obtaining.Refractory filler 4 be full of in the whole metal shell remove conductor 1 with and the inner space of insulating barrier 2.In the present embodiment, refractory filler 4 adopts the magnesium oxide mineral matter, also can adopt other to have the filler of good insulation fire resistance as required.
Fig. 2 shows the schematic diagram according to the single five line bus ducts of embodiment 1.It also comprises the PE conductor 3 that is provided with near side plate 8, and PE conductor 3 and four conductors 1 are parallel to each other and be spaced to form five lines, the formation busbar.Equally, also adopt refractory filler 4 to fill between PE conductor 3 and four conductors 1, make between them separate and have insulation and a fire resistance.
As shown in Figure 3-4, be respectively the schematic diagram of double four line bus ducts and double five line bus ducts.Different with above-mentioned single bus duct, double bus duct utilize central dividing plate 9 up and down two groups of bus ducts " folded end of [" type side plate 8 is connected, be fixed together by connector 6, and between the folded end of central dividing plate 9 and side plate 8, band 5 is set, to keep the refractory filler 4 of metal shell inside.In manufacture process, can after fixedly winding is finished, recharge refractory filler 4 by connector between bus duct and the bus duct.The bus duct connector can adopt built-in connecting bolt to be connected with external connecting bolt.In addition, in the junction of bus duct and bus duct, connector can adopt atresia or porose connection, at the connector place that connection is finished, can fill the magnesium oxide mineral matter equally, satisfies the requirement of insulation fire protecting performance.
By the conductor 1 and the PE conductor 3 of varying number are set in metal shell inside, can form multiple bus duct groups such as phase three-wire three, three-phase and four-line, Three-phase five-wire and other poly-phasic multis.
Shown in Fig. 5-12, as other schemes of the present invention, embodiment 2 other parts are identical with embodiment 1, and difference is:
Figure 13-14 shows the explosive view of the device that adopts fireproof bus duct of the present invention, and Figure 14 has represented the double bus duct device that formed by single bus duct device joined in parallel.Bus duct device of the present invention comprises two adjacent concentration bus ducts 200 and the connector 100 that two bus ducts 200 are linked together, and wherein, bus duct 200 is used to install the conductor such as the conducting copper of one group of mutually insulated.Behind the external packets insulating layer coating of each conductor, with heterogeneous airtight being pressed in the bus duct 200.
Wherein, connector 100 comprise be separately positioned on before and after connection side plate 10, a plurality of braces and a plurality of insulating barrier of side and the securing member that above-mentioned connection side plate 10, brace and insulating barrier are fixed together with the connection cover plate 13 of the combined connection in two ends up and down that is connected side plate 10, in being arranged on connection side plate 10 and being connected the space that cover plate 13 surrounded.Connect side plate 10 and be connected the cover plate 13 common metal shells that form bus duct device.
Above-mentioned securing member comprise pass the bolt 12 that connects side plate 10, insulating barrier and brace, with bolt 12 supporting with the nut realizing being fastenedly connected, encapsulation on the bolt 12 with realizing the insulating sleeve that insulation is connected, the butterfly gasket 11 that is installed in bolt 12 two ends etc. between bolt 12 and the brace, with the bonding strength of assurance securing member.
Claims (10)
1. fireproof bus duct, it comprises:
Housing;
Parallel and spaced apart a plurality of conductors in described housing, and described a plurality of conductor and described housing are arranged at interval;
And the insulating barrier that coats in each outside of described conductor;
It is characterized in that,
Described fireproof bus duct also comprises and is filled between described a plurality of conductor and is filled in refractory filler between described conductor and the described housing, thereby realizing insulation and fire-resistant between described a plurality of conductors and between described conductor and described housing.
2. fireproof bus duct as claimed in claim 1 is characterized in that, described refractory filler is the magnesium oxide mineral matter.
3. fireproof bus duct as claimed in claim 2 is characterized in that, described conductor is the rectangle section bar.
4. fireproof bus duct as claimed in claim 2 is characterized in that, described conductor is a profile shapes.
5. fireproof bus duct as claimed in claim 1 is characterized in that, the quantity of described conductor is 4.
6. as the described fireproof bus duct of one of claim 1-5, it is characterized in that described fireproof bus duct also comprises the PE conductor that is provided with near described housing.
7. fireproof bus duct as claimed in claim 6 is characterized in that, a plurality of described fireproof bus ducts connect to form many bus duct platoons at described shell place each other.
8. fireproof bus duct as claimed in claim 6, it is characterized in that, described shell is by cover plate and " [" type side plate is connected to each other and forms, the end of two bendings of described side plate is connected with the end of described cover plate respectively, and with the position that described cover plate is connected band is set in the end of the described bending of described side plate.
9. fireproof bus duct as claimed in claim 6 is characterized in that, described cover plate and described side plate adopt bolt to be connected and fixed.
10. fireproof bus duct as claimed in claim 1 is characterized in that, the outside of described insulating barrier coats mica paper or mica tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102042886A CN102290758A (en) | 2010-06-21 | 2010-06-21 | Fire-resistant bus duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102042886A CN102290758A (en) | 2010-06-21 | 2010-06-21 | Fire-resistant bus duct |
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| Publication Number | Publication Date |
|---|---|
| CN102290758A true CN102290758A (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102042886A Pending CN102290758A (en) | 2010-06-21 | 2010-06-21 | Fire-resistant bus duct |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123817A (en) * | 2013-03-15 | 2013-05-29 | 深圳市沃尔核材股份有限公司 | Bus bar and intensive insulation bus duct with same |
| CN103137251A (en) * | 2013-03-15 | 2013-06-05 | 深圳市沃尔核材股份有限公司 | Busbars and intensive insulating bus duct including same |
| CN103151742A (en) * | 2013-03-15 | 2013-06-12 | 深圳市沃尔核材股份有限公司 | Compact insulated busway |
| CN103208765A (en) * | 2013-03-19 | 2013-07-17 | 启东沃玛力电器辅件有限公司 | Improved fire-proof bus duct |
| CN103208766A (en) * | 2013-03-19 | 2013-07-17 | 启东沃玛力电器辅件有限公司 | Fire-resistant bus groove |
| CN107017595A (en) * | 2016-01-28 | 2017-08-04 | 黄通 | Radiating refractory busbar in a kind of |
| CN107177864A (en) * | 2017-07-03 | 2017-09-19 | 扬州润友复合材料有限公司 | It is a kind of to be intended to protection electrolytic bath bottom bus, the device for preventing bus to be thrust |
| CN108565803A (en) * | 2018-02-12 | 2018-09-21 | 珠海光乐电力母线槽有限公司 | A kind of fire-fighting power supply and distribution mains system bus duct of environment-friendly type |
| CN109066541A (en) * | 2018-10-12 | 2018-12-21 | 江苏亿能电气有限公司 | A kind of bus duct connection structure with compensation function |
| CN110593665A (en) * | 2019-09-11 | 2019-12-20 | 国网山东省电力公司金乡县供电公司 | Transformer substation's wire casing |
| CN113169531A (en) * | 2019-01-18 | 2021-07-23 | Abb瑞士股份有限公司 | Support mechanism for bus and switchgear |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2272608Y (en) * | 1996-10-24 | 1998-01-14 | 上海立新电器厂 | Refractory type bus trough |
| CN2377756Y (en) * | 1999-05-12 | 2000-05-10 | 吴三明 | Conductor whole-length fixed bus-way |
| CN101567536A (en) * | 2009-05-26 | 2009-10-28 | 江苏省电力公司昆山市供电公司 | Insulated fireproof bus duct |
| CN201868811U (en) * | 2010-06-21 | 2011-06-15 | 珠海光乐电力母线槽有限公司 | Fire resistant bus duct |
-
2010
- 2010-06-21 CN CN2010102042886A patent/CN102290758A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272608Y (en) * | 1996-10-24 | 1998-01-14 | 上海立新电器厂 | Refractory type bus trough |
| CN2377756Y (en) * | 1999-05-12 | 2000-05-10 | 吴三明 | Conductor whole-length fixed bus-way |
| CN101567536A (en) * | 2009-05-26 | 2009-10-28 | 江苏省电力公司昆山市供电公司 | Insulated fireproof bus duct |
| CN201868811U (en) * | 2010-06-21 | 2011-06-15 | 珠海光乐电力母线槽有限公司 | Fire resistant bus duct |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123817A (en) * | 2013-03-15 | 2013-05-29 | 深圳市沃尔核材股份有限公司 | Bus bar and intensive insulation bus duct with same |
| CN103137251A (en) * | 2013-03-15 | 2013-06-05 | 深圳市沃尔核材股份有限公司 | Busbars and intensive insulating bus duct including same |
| CN103151742A (en) * | 2013-03-15 | 2013-06-12 | 深圳市沃尔核材股份有限公司 | Compact insulated busway |
| CN103208765A (en) * | 2013-03-19 | 2013-07-17 | 启东沃玛力电器辅件有限公司 | Improved fire-proof bus duct |
| CN103208766A (en) * | 2013-03-19 | 2013-07-17 | 启东沃玛力电器辅件有限公司 | Fire-resistant bus groove |
| CN107017595B (en) * | 2016-01-28 | 2019-04-02 | 黄通 | Radiate refractory busbar in a kind of |
| CN107017595A (en) * | 2016-01-28 | 2017-08-04 | 黄通 | Radiating refractory busbar in a kind of |
| CN107177864A (en) * | 2017-07-03 | 2017-09-19 | 扬州润友复合材料有限公司 | It is a kind of to be intended to protection electrolytic bath bottom bus, the device for preventing bus to be thrust |
| CN108565803A (en) * | 2018-02-12 | 2018-09-21 | 珠海光乐电力母线槽有限公司 | A kind of fire-fighting power supply and distribution mains system bus duct of environment-friendly type |
| CN109066541A (en) * | 2018-10-12 | 2018-12-21 | 江苏亿能电气有限公司 | A kind of bus duct connection structure with compensation function |
| CN109066541B (en) * | 2018-10-12 | 2023-11-14 | 伊顿母线(江苏)有限公司 | Bus duct connection structure with compensation function |
| CN113169531A (en) * | 2019-01-18 | 2021-07-23 | Abb瑞士股份有限公司 | Support mechanism for bus and switchgear |
| CN113169531B (en) * | 2019-01-18 | 2024-02-20 | Abb瑞士股份有限公司 | Support mechanism for bus bar and switchgear |
| CN110593665A (en) * | 2019-09-11 | 2019-12-20 | 国网山东省电力公司金乡县供电公司 | Transformer substation's wire casing |
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Application publication date: 20111221 |