power distribution - Siemens

14BUSWAYSYSTEMSBusway SystemsSentron Busway OverviewJoint StackEach Sentron Busway piece is shippedwith a joint stack and joint coversinstalled at one end of the busway and ashipping end protector at the other end.The joint stacks feature a single boltdesign and a special, torque indicating,double headed break-off bolt. Thiseliminates the need for torque wrenchesand assures proper torque at installationof 55 ft.-lbs.(68 N-m). When the propertorque value is achieved, the top bolthead will shear off. Each joint stackallows for +/- .625 inches (15.8mm)adjustability at each joint. Overadjustment is prevented by the jointcovers, which will only allow a .625 inch(15.8mm) adjustment when theknockouts on the joint cover areremoved. It is possible to remove anyjoint connection assembly to allowelectrical isolation or removal of abusway length without disturbingadjacent busway lengths. Isolation jointstacks are available and used toelectrically isolate a busway section(s)within a busway run. For easy visualidentification, isolation joint stackassemblies are painted white.Plug-in OpeningSentron Busway offer plug-in stylebusway which feature plug-in openingsrated for finger safety to IP2X inaccordance with IEC 529 and BS EN60439-1, -2 and BS EN 60529.Each plug-in opening has a reversiblehinged dead front designed to protectthe contact surfaces from dirt, dust ormoisture. Gasketing is used whereapplications require a splash proof(IP55) rating.IP RatingsSentron Busway is available in a varietyof IP ratings. Use the chart below todetermine the IP rating that best fitsyour application needs.TestingEach piece of Sentron Busway is factorytested before shipping. Tests performedinclude dielectric tests, which are usedto insure integrity of insulation. Inaddition, Sentron Busway is tested inaccordance with both UL and IECstandards. All Sentron Busway ismanufactured and inspected in an ISO9001:2000 registered facility.OverviewStandardsAll Sentron Busway products meet thefollowing standards:UL 857NEMA BU1CSA C22.2IEC 439-1(1993), IEC 439-2 (1993),IEC 529 (1989)BS EN 60529BS EN 60439-1, 60439-2UL 1479DIN 4102 Parts 9&12BS 6387 Parts 11.1 and 11.2Labor SavingsUsing Sentron Busway instead of cableand conduit can create savings of up to20 - 30% on total installed costs. Sentronbusway is lightweight, compact andtakes half the time to install as cable andconduit. Siemens Sentron Busway -Cable/Conduit Conversion SoftwareProgram will show you side by sidecomparisons of busway vs. cable/conduit.These comparisons include materialcosts, labor costs, bill of materials, andtechnical information between buswayand cable/conduit. Contact your localSiemens sales office to find out moreinformation, or visit our web site atwww.sea.siemens.com.Joint AssemblyPlug-In Opening and CoverLevels of Protection DescriptionCodeIP 2XDescriptionPlug-In outlet protects against access to live parts by .472 in. (12 mm) test probe, even with coveropened. Finger SafeSentron BuswayFeeder Plug-In• • •IP 40 Enclosure protects against entry of .039 in. (1.0 mm) test probe. Indoor (Typical UL Designation) • • •IP 55 Enclosure protects against entry of dust and water jets. Splash Proof • • •IP 66 Enclosure is dust tight and protects against powerful water jets. Outdoor (International Only) •NEMA 3R Enclosure protects against rain, sleet and damage from ice formation. Outdoor - NAFTA •Sentron Bus Plugs14-22Siemens Power Distribution & Control, SPEEDFAX 2007-2008 Product Catalog