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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.
  • Common Mode (Ground Suppressing) Suppressor Hazards
    (NTSC POWER SYSTEM), of the U.S. National Electrical Code (NEC) [1] allows bonding of the neutral conductor to ground only at a building entrance or at the secondary of a building transformer. The neutral, not the ground, is the designated current carrying conductor, except in "fault" conditions
  • 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
  • Using Current-Limiting Fuses to Increase SCCR of Industrial Control Panels (.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

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