Ground Fault Circuit Interrupter - GFCI Definition: GFCI = Ground Fault Circuit Interrupter. The GFCI is a fast-acting circuit breaker that senses small imbalances in an electrical circuit caused by the electrical current leaking to ground. If this imbalance occurs, the GFCI shuts off the electricity within a fraction of a second. How it works: The GFCI device continually matches the amount of current going to an electrical device against the amount of current returning from the device along the electrical circuit path. Whenever the amount "going" differs from the amount "returning" by approximately 5 milliamps, the GFCI interrupts the electric power...

Assured Grounding Program Instructor Note:  OSHA strictly enforces the standards pertaining to electrical grounding. These standards require that a project use either Ground Fault Circuit Interrupters (GFI’s) or an Assured Grounding Program. GFI’s effectively prevent short circuits by tripping the entire circuit when a short occurs. It eliminates the possibility of electrocution and is the preferred method of protection. Introduction: Our company has an Assured Grounding program as a means to protect ourselves against accidental electrical shock. Guide for Discussion Program Components Have the company written policy on file. Our policy is located _____________ Have a competent person conduct all tests. Our competent person(s) are: __________ Test...

Ground Fault Circuit Interrupters Ground Fault Circuit Interrupters (GFCI) are devices designed to prevent accidental electric shock and electrocution by preventing ground faults. They also protect against electrical fires, tool/appliance overheating, and destruction of wire insulation. GFCI’s are required by building code in “wet” locations like kitchens and bathrooms and by OSHA at construction sites. The most common electric shock hazard, ground faults can cause severe electrical shock or electrocution. In normal conditions, electricity runs in a closed circuit; electricity flows out on the "hot" wire and returns on the "neutral" wire, completing the circuit. A ground fault occurs when the electrical...