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  • Ground Fault Circuit Interrupters
    Introduction. OSHA 1910.399 defines a ground fault circuit interrupter, or GFCI, as "a device whose function is to interrupt the electric circuit to load when a fault current to ground exceeds some predetermined value, that is less than that required to operate the over-current protective device
  • Ground-fault interrupters
    Ground-fault circuit interrupters (GFCIs), also called earth leakage or residual-current circuit breakers, can sense leakage current to earth ground from live parts and interrupt the circuit automatically when leakage current exceeds a predetermined value. A core-balance protection device serves
  • DC Ground Fault Provided for Uninterruptible Power
    as historical data review and analysis. For the purposes of this paper, we shall consider items 1 and 2 resulting from a battery ground fault and the ability to detect such a fault. Consideration for system reliability is beyond the scope of this paper.
  • Improving Production Line Efficiency (.pdf)
    replacing their transformer-in-a-box equipment and immediately saw big benefits. Microprocessor-based hipot, ground bond, insulation resistance, and line leakage testers entered the market with advanced features like high and low trip current limits, multiple memory locations, and ground fault circuit
  • Smart Computing Article - Your PC Won't Start
    are functioning. If not, the surge protector might be to blame. Another likely culprit is a faulty wall outlet. Plug your computer directly into the outlet, sans surge protector. Ensure that the GFCI (ground fault circuit interrupter) hasn t been tripped. If your PC still won t turn on, plug something
  • Berke on Safety: How to Mistreat a Hair Dryer
    questions and to take on the recommended fixes. Our hair-dryer evaluation might proceed as follows: The first item on our list, dropping the unit in water, has already been addressed by the industry. Ground-fault circuit interrupters (GFCI) at the plug end of the electric cord guard the user against
  • Fake Products, Real Dangers
    that commonly counterfeited electrical products include extension cords, fuses, circuit breakers, surge protectors and ground fault circuit interrupters. So what does any of this have to do with the plastics industry? Plenty. Plastics manufacturers, processors and compounders such as Plastics Color Corporation
  • Why Neutral Grounding Resistors Need Monitoring (.pdf)
    or generator winding through the faulted-phase conductor to the fault and to ground, returning to the source winding through the ground-return path and the neutral grounding resistor. When a neutral-grounding resistor fails, the failure mode is usually open circuit leaving the ground-return path open
  • Simulated Line Leakage Tests: Hocus-Pocus?
    either are its nominal line voltage or at 110% of its nominal specified input voltage. It is designed to measure the leakage current that could flow through the human body under both normal and single fault conditions. Fault conditions can occur during everyday use when the ground or neutral circuits
  • Medical Device Link .
    continuity test with displayed results. The units also have front and rear panel connections. In addition to fast device discharge and rapid shutdown on fail, the Sentry Plus design includes a ground fault interruption circuit. This safety feature is designed to shut down the unit in case an operator
  • Guarding against arc flash
    A rise in arc-flash-related injuries leads to new regulations and designs to safeguard personnel. Arc flash is defined as an explosive release of energy caused by an electrical arc. Typically, the arc results from either a phase-to-ground or phase-to-phase fault created by many possible events

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