Single or doublepitched canopy shall have minimum 15 pitch with a minimum 76 ground clearance, and 2 foot overhang roofing material shall be corrugated aluminum. Lectrobar also provides busbar installation with the same level of quality as production. Bus duct is used for the effective and efficient supply of electricity in mostly industrial locations. Switchboard identification markings noted on busway sketch. There is a gener al application section that applies to all types. Cable bus system layout drawings are shipped complete with matchmarked numbers that correspond to each cable bus. The welded aluminum alloy enclosure is provided in custom lengths, with each piece sized to. Gas insulated sulfur hexafluoride enclosed oil cooled. Since cable bus is continuous there are no power losses from intermediate splices or connections. Busway systems schneider electric documentsdownloads. We observe production loss of over millions of rupees due to non availability of product worth few thousand rupees. Virtually all of storms electrical bus bar business involves copper and a variety of core metalworking capabilities, all based on cnc technology.
Though cables can also be used in these areas, their economic impact would be high if compared to the effective busbar trunking system. Support bus duct horizontal runs with threaded rod suspension hangers at intervals not to exceed 10 on center. In either case, identification of each member of the assembly is extremely important. Technibus, inc is a global leader in the supply of metal enclosed bus systems operating for more than 50 years. Detail of phase bussing connections in a switchboard. Because of its compact dimensions, relative light weight and userfriendly design, nonsegregated phase bus duct is easy to install. A rating usually expressed in hours indicating the length of time that the temperature on the nonfire side of a firerated assembly exceeds 325 degrees above its ambient. Each bus duct section shall be wrapped for protection. An assembly can be a simple device with just a few components, or a very complex mechanism made up of many components. Medium voltage isolated phase bus guide specification. Denver public schools facility management 26 25 00 enclosed bus assemblies technical construction standards page 2 of 2 update. Operating in a 150,000 square foot manufacturing facility in canton, ohio.
Deliver each bus duct section in individual shipping cartons for ease of handling. Nonsegregated phase bus a wide range of fittings duct is an assembly of bus conductors with associated connections, joints and insulating supports confined within a metal enclosure without interphase barriers. Schneider electric powerstyle qed2 low voltage switchboards. Inspect and report concealed damage to carrier within specified time. The solution is designed for use on circuits which importance requires greater reliability than power cables provide. Follow manufacturers joint assembly instruction drawing for both indoor and. This is a guide for the safe and proper handling, installation, operation and maintenance of busduct and associated fittings. Check out our fundamentals of low and medium voltage busway, and find out how busway will work best for you. Section 7 of the ansineta standard for acceptance testing specifications for electrical power equipment and systems may be reproduced and used on a cut and paste basis for the particular type of equipment to be tested. Original technology half a century experience and reliability busduct nissin electric thailand co. Electrical shop drawing of the respective location. Each rating of busbar trunking shall be asta type tested and certified for short circuit ratings for one second covering phase, neutral, earth conductor and the housing as an. Each bus duct section shall be identified with the same section number as shown on vendor drawings. Because they are nearly indestructible, utility engineers and consultants continue to specify porcelain insulators for their key switchyard projects.
Inspector pocket guide international firestop council. Abus duct system is an effective method of distributing power to your switchgear and various loads. Construction specification for electrical busbar trunking. Yet, bus duct problems lead to catastrophic damage and extensive downtime.
The layout drawing also provides typical crosssection views of duct, which includes ratings, housing size and weight per foot, material descriptions, and bus duct structural support locations. Through bus rated 4,000 a has eight bus bars per phase. A complete set of matchmarked layout drawings shows the location of each section and accessories, for a simple and fast installation. All rus borrowers rus electric staff effective date. Standard for acceptance testing specifications for electrical. Bus costs significantly less than nonsegregated bus duct, cable in tray or conduit and wire systems. There is a basic fitting to meet every application need and products are designed to provide an economical system, yet meet the specifications which are the most important. L ratings may be given for both ambient and elevated temperatures. Complete pdf from an assembly drawing solidworks forums. Us3732353a moisture seal and fire barrier for electrical. Cable bus will be wired to a weathertight bus duct provided at the top or bottom of the rack canopy optional. Standards and applications of medium voltage bus duct.
A system listing a nominal 1 inch joint width with 25% compression or extension, actually allows for a movement of 14 of compression and 14 of extension. Method of statement for installation of power busbar method. Schneider electric busway systems steven engineering. The specific requirements of each assembly plan, arrangement, components, etc. Nonsegregated phase bus is an assembly of bus conductors with associated. This drawing should be followed carefully to ensure proper busbar system. This manual describes the installation and inspection procedure of godrej s. The busbar trunking shall be designed and constructed for use on a 400415v, three phase, four wire, 50hz system. Adaptable busduct systems for virtually any application eaton. Nonsegregated phase bus duct eatons nonsegregated phase bus is an assembly of bus conductors with associated connections, joints, and insulating supports integrated within a single enclosure. As ampacity andor the cost of copper increases, the cost savings of cable bus over other systems is even greater. Recent progresses in busducts design article pdf available in compel international journal of computations and mathematics in electrical 351. This manual will be divided into several sections each section pertaining to a specific line of bus duct com plete with all of the dimensions, voltage drop curves, and characteristics.
Manufacturers, packagers, and distributors of switchgear, power transformers, gensets and bus duct continue to use porcelain electrical insulators over epoxy, silicone, and psycloalaphatic designs. These drawings should be followed carefully to ensure a proper busway system. Where to start start the installation, if at all possible, at the most. Bus duct assembly westinghouse electric corporation. Home technical articles standards and applications of medium voltage bus duct bus duct is used for the effective and efficient supply of electricity in mostly industrial locations. Nonsegregated phase bus duct eaton busduct provides flexible power distribution solutions for a variety of applications where change and adaptation are important. It will help us to tap power directly from where we want it. Verify the documents and submitted drawings reference systems that have been tested for the required amount of movement.
Copper or aluminum is used for the conductor of bus duct that be insulated and enclosed completely for protection against mechanical damage and dust accumulation. For the purposes of this manual, a qualified person, as. This modal can be closed by pressing the escape key or activating the. Connections are made by using an e connector assembly.
Our products include isolated phase, nonsegregated, segregated phase systems and advanced systems. During the jointing, it should be noted to perform the installation while checking the dimensions shown on the accompanying drawings. Apr 04, 1972 the bus duct assembly of claim 1 in which said collar has an annular groove in said outer periphery in which said additional elastomeric ring is positioned. When combined with storms value engineering, our full inhouse cnc capability saves even more time. Illustrations, photographs, and description of the bus assembly the illustrations contained in this document may not represent the exact construction details of each particular. The bus duct system described is to be suitable for indoor and outdoor installations with nominal current ratings operating in ambient temperatures to 40oc. Provide horizontal sway bracing when busway contains operable plugin units. Original technology half a century experience and reliability. Bus duct layout drawing the bus duct layout drawing illustrates plan and elevation views of duct routing and identifies all factoryprovided assemblies.
Eaton, xap series busduct complements eatons range of power distribution. The interlock ensures that the protective device is off prior to installation or removal of the bus plug. The bus duct assembly of claim 2 in which said additional elastomeric ring is a oneturn length of tubing and in which a plurality of screws are threaded through the wall of said housing. Instructions for installation and placing the bus assembly into service 4. Busbar trunking system bbt in electrical construction, uses to transporting electrical power to a shorter distance but many utilization point, say, within the building or a compound of facilities. If installation drawings have been furnished, information regarding the orientation of the busway and location of the o side, as well as other pertinent data, will be furnished. The abcs of planning and installing powrway iii bus duct eaton. This also prevents the disconnect from being turned on while the door is open. An electrical bus duct comprising, in combination an openend, elongated housing including first and second pairs of opposing walls. The method most commonly used on assembly drawings is called ballooning. Bus ampacity ratings have been determined from ul 891 heat rise testing. Easy layout and extension by various kind of standard items.
This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Sentron bus plugs are designed with an interlock device to prevent the door from being opened when the disconnect is on. Extra protection material shall be provided in addition to the packing of the busduct against any adverse construction site conditions. Cable bus is an assembly of fully insulated conductors mounted in a ventilated metal housing which maintains designed cable spacing. This specification covers only the general requirements of the bus duct assemblies. Spectra and spectra ii series plugin and feeder busway. Before busduct installation at job site busduct delivered to job site shall be stored indoors and in a dry environment free from condensation. Easy construction against conventional cable features of lv busduct sandwich type 2. A bus duct assembly comprising a bus duct section having top and bottom walls and opposite side walls forming a housing, a plurality of multiphase bus bars supported within the housing, a ground bar within the housing and adjacent to one side wall and substantially coextensive with the housing, means for retaining the ground bar in place against the side wall comprising.
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