US20050077072A1 - Channel bus splice assembly - Google Patents
Channel bus splice assembly Download PDFInfo
- Publication number
- US20050077072A1 US20050077072A1 US10/685,155 US68515503A US2005077072A1 US 20050077072 A1 US20050077072 A1 US 20050077072A1 US 68515503 A US68515503 A US 68515503A US 2005077072 A1 US2005077072 A1 US 2005077072A1
- Authority
- US
- United States
- Prior art keywords
- plate
- splice
- channel bus
- sliding clamp
- fasteners
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/21—Bus-bar arrangements for rack-mounted devices with withdrawable units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49904—Assembling a subassembly, then assembling with a second subassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49936—Surface interlocking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
- Y10T29/49941—Peripheral edge joining of abutting plates
Abstract
Description
- The present invention relates generally to the field of electrical switchboards and panel boards having bus bars, and more particularly to a channel bus splice assembly for use in switchgear and switchboard equipment.
- Switchgear assemblies, switchboards and panelboards are general terms which cover metal enclosures, housing switching and interrupting devices such as fuses, and circuit breakers, along with associated control, instrumentation and metering devices. Such assemblies typically include associated bus bars, interconnections and supporting structures used for the distribution of electrical power. Low voltage switchgear and switchboards operate at voltages up to 600 volts and with continuous currents up to 5000 amps or higher. Such devices are also designed to withstand short circuit currents ranging up to 200,000 amps (3 phase rms symmetrical).
- Typical switchgear equipment is composed of a lineup of several metal enclosed sections. Each section may have several circuit breakers stacked one above the other vertically in the front of the section with each breaker being enclosed in its own metal compartment. Each section has a vertical or section bus which supplies current to the breakers within the section via short horizontal branch buses. The vertical bus bars in each section are supplied with current by a horizontal main bus bar that runs through the lineup of metal enclosed sections. A typical arrangement includes bus bars for each electrical phase of a multiple phase system which may include three power phases and a neutral.
- The bus bars typically are joined by bus bar joints, also referred to as splice, in the switchgear switchboard line-up. Bus bar splices typically are assembled with bolts that must be accessible for routine maintenance, for example, tightening or replacing bus bars. Bus bar assemblies typically increase in thickness as the current rating of the switchgear equipment increases. It is also typical to provide insulation of various components within a switchgear or switchboard enclosure including a cover of the bus bar splices.
- Thus, there is a need for a bus bar splice assembly for use in switchgear equipment that will allow maintenance of a bus bar splice. There is a further need for a bus joint splice assembly that provides access to the fasteners. There is an additional need for a bus bar cover assembly that can accommodate various current ratings (sizes) of bus bar joint.
- For use in switchgear equipment having channel bus bars joined together at a bus joint, there is provided a channel bus splice assembly. The channel bus splice assembly comprises an inner splice plate defining a plurality of throughbores. A sliding clamp plate is configured to reciprocally move within the inner splice plate. The sliding clamp plate defines a plurality of access ports. A pair of nut plates are coupled to the sliding clamp plate and having threaded orifices corresponding to selected throughbores in the inner splice plate. An outer splice plate having a plurality of throughbores corresponding to the threaded orifices in the nut plates.
- There is also provided a method of connecting first and second channel bus bars in a switchgear assembly with a channel bus splice assembly. The method comprises the steps of installing an inner splice plate of a channel bus splice assembly between flanges of the channel bus bars. Coupling the inner splice plate to one of the channel bus bars with interior fasteners. Coupling a pair of nut plates to a sliding clamp plate. Installing the sliding clamp plate in the interior splice plate, with the sliding clamp plate configured to reciprocally move within the inner splice plate and defining a plurality of access ports. Mounting an outer splice plate having throughbores with exterior fasteners, the exterior fastener is configured to pass through the throughbores in the outer splice plate and thread into the nut plates wherein the second channel bus bar is coupled between the outer splice plate and the inner splice plate.
- There is also provided a method of servicing and maintaining a channel bus splice assembly connecting first and second channel bus bars in a switchgear assembly. The channel bus splice assembly includes a plurality of interior fasteners and a plurality of exterior fasteners, an interior splice plate, a sliding clamp plate having nut plates and an outer splice plate. The method comprises the steps of removing the exterior fasteners from the nut plates. Removing the outer splice plate. Moving the sliding clamp plate to one side until it stops, wherein access to some of the interior fasteners is obtained. Manipulating some of the interior fasteners. Moving the sliding clamp plate to the other side until it stops, wherein access to other of the interior fasteners is obtained. Manipulating other of the interior fasteners. Remounting the outer splice plate by passing the exterior fasteners through the outer splice plate and threading into the nut plates. The method can also include the steps of removing and reinstalling a bus joint cover and the step of replacing a member of the channel bus bar. The method can also include the step of manipulating one of torquing the fasteners and replacement of the fasteners.
-
FIG. 1 is a perspective view of a partial, multiple phase switchgear equipment assembly including an exemplary embodiment of a channel bus splice assembly. -
FIG. 2 is a perspective view of an exemplary embodiment of a channel bus joint assembly having a sliding clamp plate in a centered position with exterior fasteners installed. -
FIG. 3 is a perspective view of the channel bus bar joint assembly illustrated inFIG. 2 with the sliding clamp plate positioned to the left wherein access to the two right side interior fasteners is obtained. -
FIG. 4 is a perspective view of the channel bus joint assembly illustrated inFIG. 2 with the sliding clamp plate positioned to the right wherein access to the two left side interior fasteners is obtained. -
FIG. 5 is a perspective view of a partial multiple phase switchgear assembly including an exemplary embodiment of a channel bus splice assembly illustrating two splice assemblies with exterior fasteners and outer splice plates removed for maintenance, and illustrating a telescoping insulating cover on a channel bus splice assembly. -
FIG. 6 is an illustration of an exemplary embodiment of an outer splice plate with a plurality of thorughbores. -
FIG. 7 is an illustration of an exemplary embodiment of an interior splice plate having a plurality of throughbores and spring pins placed at pre-selected points a distance (D) apart. -
FIG. 8 illustrates several views of an exemplary embodiment of a sliding clamp plate coupled to two nut plates, each nut plate having a plurality of threaded orifices. - Before describing exemplary embodiments of a bus
joint cover assembly 30, several comments are appropriate. Switchgear assemblies and switchboard assemblies typically include vertical (section)bus bar 12 andhorizontal bus bars 20 to distribute power within the assemblies. Bus bars can be flat and have a rectangular cross-section or bus bars can be C-shaped or U-shaped channels. - A C-shaped or U-shaped
channel bus 16 resists bending and twisting in short-circuit current conditions and is stronger than a flat bar of comparable thickness. Further, the channel bus assembly can use one or multiple bars per phase thereby increasing the current density available in the system (SeeFIG. 1 ). In the multi-channel bus bar system, a firstchannel bus bar 18 and asecond channel bar 19, each havingflanges 17 are aligned with theflanges 17 facing each other as shown inFIGS. 1, 2 and 5. Also, inner channels can be nested inside the outer channels of each first and second channel bar of each phase. Since various configurations of bus bars can be used, a bus bar splice assembly that can be configured to accommodate such various configurations will be advantageous. A telescoping capability of an insulating splice cover allows the same cover to work with bus bars of varying thickness. The use of channel bus bars and the channel bus splice assembly provides high short-circuit withstand capability with substantially less bracing than other geometries. - Referring now to
FIG. 1 , there is illustrated a portion of a typical, three phase (PH-A, PH-B, PH-C) high current, insulated switchgear bus assembly 10. The vertical bus bars 12 (also referred to as section bus) are shown withoptional insulating barriers 14 installed. Thehorizontal bus bars 20 are shown without an optional insulation sleeve. The horizontal bus bar joints 25 can be enclosed by a busjoint cover assembly 58 that may telescope in size. - In
switchgear equipment 10, utilizing channel bus bars, a typical arrangement is to utilize multiple channel bus bars. Typically there is an outer bus bar, herein referred to as firstchannel bus bar 18, and an interior channel bus bar, herein referred to as secondchannel bus bar 19. The first and second channel bus bars 18, 19 also typically are comprised of multiple members mounted end-to-end as illustrated inFIGS. 1 and 5 . The end-to-end configuration together with the flange facing configuration of the first and second channel bus bars 18, 19 necessitates the use of a channelbus splice assembly 30. The channelbus splice assembly 30 can also be used with a single channel bus bar. In such arrangement, shim plates can be used to align the equipment. The channelbus splice assembly 30 includes aninner splice plate 32, a slidingclamp plate 40, a pair ofnut plates 46 and anouter splice plate 50. SeeFIGS. 6-8 . - The
inner splice plate 32 is configured to fit between theflanges 17 of the channel bus bars 18, 19. Theinner splice plate 32 defines a plurality of throughbores 34 through which fasteners are inserted to secure the channel bus bars. (SeeFIG. 7 .) Theinner splice plate 32 is provided withpre-selected points 36 which define the distance of movement D for the slidingclamp plate 40. A pair of spring pins (also referred to as roll pins) can be set at suchpre-selected points 36 to act as stops for the slidingclamp plate 40 by selectively abutting thefeet 44 configured on the slidingclamp plate 40. - A sliding
clamp plate 40 is configured to reciprocally move within theinner splice plate 32. The slidingclamp plate 40 defines a plurality ofaccess ports 42 the function of which will be explained below. The slidingclamp plate 40 can be an angle plate configured with two spaced apartfeet 44 which function to stop movement of the slidingclamp plate 40 atpre-selected points 36 within theinner splice plate 32. - A pair of
nut plates 46 are coupled to the slidingclamp plate 40 and have threadedorifices 48 corresponding to selected through bores in theinner splice plate 32. Thenut plates 46 are coupled to the slidingclamp plate 40 by fasteners, for example, spring pins or rivets of suitable size and strength for their intended use. (SeeFIG. 8 .) Thenut plates 46 could also be welded to the slidingclamp plate 40 or integrally formed with the slidingclamp plate 40 during fabrication. - The
outer splice plate 50 has a plurality of throughbores 52 which correspond to the threadedorifice 48 in thenut plates 46. (SeeFIG. 6 .) - The various components of the
channel bus splice 30 can be composed of metal of suitable composition and compatibility and strength with the channel bus bars 18, 19, for example copper and aluminum. - It should be noted that mounting holes in the first and channel bus bars 18, 19 are aligned on the same axis and have identical hole patterns. This allows for commonality of parts. The several through
bores orifices 48 identified above are also configured to align on the same axis as the mounting holes in the several channel bus bars 18, 19. A first selection offasteners 54 are configured to pass through theaxis ports 42 and insert into the through bores 34 of theinner splice plate 32 wherein theinner splice plate 32 is secured to achannel bus bar 19 and a second selection offasteners 56 are configured to pass through the through bores 52 in theouter splice plate 50 and thread into thenut plates 46 wherein anotherchannel bus bar 18 is coupled between theouter splice plate 50 and theinner splice plate 32. - Referring now to
FIGS. 2, 3 and 4, there is illustrated an exemplary embodiment of achannel bus splice 30. A method of connecting a first and secondchannel bus bar switchgear assembly 10 with a channelbus splice assembly 30 will be described. Each channel bus bar includes two end-to-end members. For clarity purposes, only one member of eachchannel bus bar FIG. 2 so that the channelbus splice assembly 30 can be seen. - The method comprises the steps of installing an
inner splice plate 32 of a channelbus splice assembly 30 between theflanges 17 of the channel bus bars 18 and 19. Coupling theinner splice plate 32 to one of the channel bus bars 19 withinterior fasteners 54. Coupling a pair ofnut plates 46 to a slidingclamp plate 40 and installing the slidingclamp plate 40 in theinner splice plate 32. The slidingclamp plate 40 is configured to reciprocally move within theinner splice plate 32 and define a plurality ofaccess ports 42. Then mounting anouter splice plate 50, the plate having throughbores 52, with anexterior fastener 56. Theexterior fasteners 56 are configured to pass through the through bores 52 in theouter splice plate 50 and thread into thenut plates 46 wherein anotherchannel bus bar 18 is coupled between theouter splice plate 50 and theinner splice plate 32. -
FIG. 2 illustrates an internal view of theinner splice plate 32 and the slidingclamp plate 40 in an assembled position between the first and second channel bus bars 18 and 19 with the exterior fasteners threaded into thenut plates 46. The slidingclamp plate 40 is positioned with the spring pins in thepre-selected points 36 aligned an equal distance between thefeet 44 of the slidingclamp plate 40. -
FIG. 3 illustrates the slidingclamp plate 40 moved to one side of theinner splice plate 32 to the point where one of the spring pins 36 abuts against one of thefeet 44 of the slidingclamp plate 40. Such alignment allows access to the twointerior fasteners 54 through theaccess ports 42 to fasten theinner splice plate 32 to the interiorchannel bus bar 19. The upperinterior fasteners 54 are accessible through the outerbus bar plate 50, theinner splice plate 32 and between thenut plates 46. The lowerinterior fasteners 54 are accessible through the outerbus bar plate 50, theinner splice plate 32, between thenut plates 46 and through anaccess port 42 in the slidingclamp plate 40. The diameters of the various through bores and distances between components are configured to provide clearance for a fastener and the tool used to torque the fasteners. -
FIG. 4 illustrates the slidingclamp 32 moved to the otherselected point 36 identified by the spring pin which is a pre-determined distance D between thefeet 44 of the slidingclamp plate 40. Such position allows access to the twointerior fasteners 54 on the right side of the channelbus splice assembly 30. The upper rightinterior fastener 54 is accessible through theouter bus bar 50, theinner bus plate 32 and between thenut plates 46. The lower right fastener is accessible through theouter bus plate 50, theinner splice plate 32, between thenut plates 46 and through anaccess port 42 in the slidingclamp plate 40, similarly as described above. In one embodiment, the interior 54 andexterior fasteners 56 are configured alike. In another embodiment theinterior fasteners 54 and theexterior fasteners 56 are configured differently to accommodate different tool clearances. - An advantage of the present channel
bus splice assembly 30 is that the channel bus bars 18 and 19 do not have to be completely removed in order to gain access to and torque the fasteners in the interiorchannel bus bar 19. The method of servicing and maintaining a channelbus splice assembly 30 for connecting a first and secondchannel bus bar switchgear assembly 30 is hereby disclosed. Eachchannel bus bar bus splice assembly 30 includes a plurality ofinterior fasteners 54 and a plurality ofexterior fasteners 56, aninterior splice plate 32, a slidingclamp plate 40 havingnut plates 46 and anouter splice plate 50. (Such components are described above.) The method comprises the steps of removing theexterior fasteners 56 from thenut plates 46 and removing theouter splice plate 50. Moving the slidingclamp plate 40 to one side of theinner splice plate 32 until it stops, wherein access to some of theinterior fasteners 54 is obtained and manipulating some of theinterior fasteners 54. Manipulating can include torqueing the fasteners either to tighten or loosen the fastener and replacement of the fastener in the event that it is broken, stripped or otherwise damaged. Moving the slidingclamp plate 40 to another side of theinner splice plate 32 until it stops, wherein access to other of theinterior fasteners 54 is obtained. Manipulating the other of theinterior fasteners 54 and remounting theouter splice plate 50 by passing theexterior fasteners 56 through theouter splice plate 50 and threading thefasteners 56 into thenut plates 46. - The channel
bus splice assembly 30 may be provided with an insulatingcover 58 that must be removed before servicing or maintaining the channelbus splice assembly 30 and then reinstalled thecover 58 upon completion of such servicing and maintenance. During such operation, a channel bus bar member may be replaced in the event it is damaged or otherwise requiring service. - While the embodiments illustrated in the figures and described above are presently disclosed, it should be understood that these embodiments are offered by way of example only. The channel bus bar splice assembly is not intended to be limited to any particular embodiment, but is intended to extend to various modifications that nevertheless flow within the scope of the intended claim. For example, the channel bus bar splice assembly can be used on vertical bus bars. Other modifications will be evident to those will ordinary skill in the art.
Claims (18)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/685,155 US6888066B1 (en) | 2003-10-14 | 2003-10-14 | Channel bus splice assembly |
US11/083,423 US7334315B2 (en) | 2003-10-14 | 2005-03-18 | Method of servicing a channel bus splice assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US10/685,155 US6888066B1 (en) | 2003-10-14 | 2003-10-14 | Channel bus splice assembly |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/083,423 Division US7334315B2 (en) | 2003-10-14 | 2005-03-18 | Method of servicing a channel bus splice assembly |
Publications (2)
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US20050077072A1 true US20050077072A1 (en) | 2005-04-14 |
US6888066B1 US6888066B1 (en) | 2005-05-03 |
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US10/685,155 Expired - Lifetime US6888066B1 (en) | 2003-10-14 | 2003-10-14 | Channel bus splice assembly |
US11/083,423 Active 2024-08-22 US7334315B2 (en) | 2003-10-14 | 2005-03-18 | Method of servicing a channel bus splice assembly |
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US11/083,423 Active 2024-08-22 US7334315B2 (en) | 2003-10-14 | 2005-03-18 | Method of servicing a channel bus splice assembly |
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US20070207638A1 (en) * | 2006-03-06 | 2007-09-06 | Wiant Jason P | Bus Joint Assembly |
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US7551425B2 (en) * | 2006-03-02 | 2009-06-23 | Lineage Power Corporation | Apparatus and method for distributing electrical power from a plurality of power sources among a plurality of electrical conductors |
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DE102008058129A1 (en) * | 2008-11-16 | 2010-05-20 | Siemens Aktiengesellschaft | Device with rigid connecting rails for the current-carrying connection of first and second busbars |
US20110284264A1 (en) * | 2009-04-24 | 2011-11-24 | Mitsubishi Electric Corporation | Conductor of high voltage electrical apparatus |
JP5465968B2 (en) * | 2009-09-30 | 2014-04-09 | 矢崎総業株式会社 | Busbar and electrical junction box |
US8546689B2 (en) * | 2011-02-24 | 2013-10-01 | Schneider Electric It Corporation | Service access point for a uninterruptible power supply |
US8717741B2 (en) | 2012-04-19 | 2014-05-06 | General Electric Company | Busbar connection system, switchgear unit, and method of transporting switchgear components |
KR101344929B1 (en) * | 2013-06-12 | 2014-01-03 | 주식회사 아이일렉 | Bus bar kit |
FR3060224B1 (en) * | 2016-12-14 | 2020-10-02 | Schneider Electric Ind Sas | LOW VOLTAGE ELECTRICAL DISTRIBUTION INSTALLATION |
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US10497490B2 (en) * | 2018-02-13 | 2019-12-03 | EMC IP Holding Company LLC | Variable-length conductor system |
US10411453B1 (en) * | 2018-04-25 | 2019-09-10 | Siemens Industry, Inc. | Electrical bus assemblies, yoke brace apparatus, bus bar support assemblies, and methods |
US10498112B1 (en) | 2018-08-03 | 2019-12-03 | Siemens Industry, Inc. | Bus brace assemblies and methods for power distribution systems |
US10826281B2 (en) | 2018-08-30 | 2020-11-03 | Siemens Industry, Inc. | Ground bus subassemblies, power distribution subassemblies, and assembly methods |
US10522979B1 (en) * | 2018-08-30 | 2019-12-31 | Siemens Industry, Inc. | Bus bar assemblies, power distribution systems, and methods |
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WO2007103313A2 (en) * | 2006-03-06 | 2007-09-13 | Siemens Energy & Automation, Inc. | Bus joint assembly |
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US7449635B2 (en) | 2006-03-06 | 2008-11-11 | Siemens Energy & Automation, Inc. | Bus joint assembly |
WO2010025184A1 (en) * | 2008-08-29 | 2010-03-04 | Square D Company | Efficient high-ampacity bowl-shaped tubular conductors |
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US7786384B2 (en) | 2008-08-29 | 2010-08-31 | Mauricio Diaz | Efficient high-ampacity bowl-shaped tubular conductors |
CN102165657A (en) * | 2008-08-29 | 2011-08-24 | 施耐德电气美国股份有限公司 | Efficient high-ampacity bowl-shaped tubular conductors |
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US20170054276A1 (en) * | 2015-08-17 | 2017-02-23 | Siemens Industry, Inc. | Feed thru main breaker apparatus, systems and methods |
US10236664B2 (en) * | 2015-08-17 | 2019-03-19 | Siemens Industry, Inc. | Feed thru main breaker apparatus, systems and methods |
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US20060040538A1 (en) | 2006-02-23 |
US6888066B1 (en) | 2005-05-03 |
US7334315B2 (en) | 2008-02-26 |
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