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...

Plumbing Safety A plumber installs, repairs, and maintains plumbing fixtures or systems in businesses, industries, or residences. The job may include installation and repair of pipes, fittings, and fixtures servicing the water supply, waste disposal, and heating systems. Plumbers must also haul supplies, cut, and assemble plumbing materials, and use equipment and tools. Plumbing is a simple name for a job that has a wide variety of duties. Chemical and material exposures are common for plumbers, so get training on the potential hazards at the job sites that you are assigned. Find out if your jobsite has asbestos, lead paint, or mold....

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...