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Conduct Research Top

  • Metal Inert Gas Process (MIG)
    The Gas Metal Arc Welding (GMAW), process is commonly known as the Metal Inert Gas Process (MIG). MIG welding is also referred to as short circuit transfer. In the MIG arc welding process, metal parts are joined by melting base and filler metals with an arc struck between a consumable filler metal
  • Arc Flash Concerns & Detecting Early Signs (.pdf)
    , metal clad switch gear, pad mount transformers, and other electrical equipment, has risen, along with the available fault current. Microsoft Word - 2008-072 Theyerl. Arc Flash Concerns & Detecting Early Signs. Mark N. Theyerl. Substation Maintenance Consulting LLC. ABSTRACT. The National Electric Code
  • Stud Arc Welding and Drawn Arc Welding
    discharge, internal resistance, or other processes are used to generate an arc or fuse metal. Similar processes can be applied to weld a thread nut to a work piece. In drawn arc welding systems, an arc is struck between the fastener and work surface, the fastener is then lifted and plunged into the molten
  • Spark or Arc Excitation
    Spark and arc excitation sources use a current pulse (spark) or a continuous electrical discharge (arc) between two electrodes to vaporize and excite analyte atoms. The electrodes are either metal or graphite. If the sample to be analyzed is a metal, it can be used as one electrode. Non-conducting
  • Reducing Arc-flash Hazards through Electrical System Modifications
    in a very short time, vaporizing metals and sending a. shock wave out with a pressure blast that can be 2,000 lbs/ft2 or higher. In addition to the heat, molten. metal and pressure blast with associated shrapnel, the. worker caught up in the arc-blast can experience an. intense light and loud sound
  • Arc-Welded Studs
    In stud welding, the heat of an electric arc drawn between the fastener and the work melts a quantity of metal, after which the two heated parts are brought together under pressure. Welded fasteners must be made of a weldable material, and one end of the fastener must be designed for welding. Stud
  • Guarding against arc flash
    to a loss of eyesight. It can also spew molten metal considerable distances where it can lodge in skin or ignite clothing. A 10,000-A arc on a 480-V circuit is said to have the explosive force of eight sticks of dynamite. The National Fire Protection Agency (NFPA), Occupational Safety and Health
  • Arc Flash: Not My Fault
    of the electrical-related injuries, arc flashes can cause severe personal injury and equipment damage when an arc fault superheats the air around it, expanding and creating a pressure wave within an electrical enclosure. Explosions can be as hot as 35,000 F, and can send shrapnel and molten metal flying out

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