A ground wire provides protection by offering a parallel path back to ground for any fault current. Figure 3 afi breaker. A gfci device does not need a separate ground wire in order to operate. I believe that the on board test button uses a resistor to simulate a leak. The gfci must be marked no equipment ground. Figure 2 gfci breaker. Gfci outlets can be wired in a couple of different ways. Without a ground wire fault current. It will still trip if there is an actual current leak or if you use the device test button which does not require a ground to work. Leave enough wire for the receptacle to be pulled at least 4 6 inches from the box and attach any bare or green grounding.
Leave enough wire for the receptacle to be pulled at least 4 6 inches from the box and attach any bare or green grounding. Multiple location wiring requires two circuit cables in the electrical box one for power. If you re just replacing one outlet in the bathroom use the single location method which provides protection at a single gfci outlet. The gfci must be marked no equipment ground. Gfci also known as ground fault circuit interrupter is a protective device which automatically detects the ground faults and leakage current and provides personal protection against electrocution. The diagram below shows a typical non grounding 2 prong receptacle replaced with a gfci. If there is only 1 cable containing 2 3 wires connect the white line wire to the silver or white terminal and connect the black wire to the brass terminal which is the hot terminal. The tester needs a ground to be able to simulate a leak to cause it to trip. A ground wire provides protection by offering a parallel path back to ground for any fault current. Figure 3 afi breaker.
Figure 3 afi breaker. Plug an extension cord into an outlet that does have a ground bring the end of the extension cord to the gfci outlet to be tested and then connect one lead wire of the induction voltage tester into the ground of the extension cord and the other lead wire of the tester into the small blade power prong of the gfci outlet and this will trip the gfci outlet. The diagram below shows a typical non grounding 2 prong receptacle replaced with a gfci. Without a ground wire fault current. Figure 1 gfci receptacle. Gfci also known as ground fault circuit interrupter is a protective device which automatically detects the ground faults and leakage current and provides personal protection against electrocution. It will still trip if there is an actual current leak or if you use the device test button which does not require a ground to work. Gfci works fine on a 2 wire circuit it s just your typical tester that won t work. A ground wire provides protection by offering a parallel path back to ground for any fault current. Gfci wiring configurations.
A gfci device does not need a separate ground wire in order to operate. Figure 2 gfci breaker. The gfci must be marked no equipment ground. Gfci outlets can be wired in a couple of different ways. The gfci can feed through to a grounding receptacle which must be marked gfci protected. Many individuals believe that gfci ground fault circuit interrupter in either the receptacle figure 1 or breaker figure 2 style cannot be used on a 2 wire circuit. A ground wire provides protection by offering a parallel path back to ground for any fault current. A gfci protection device operates on the principle of monitoring the current imbalance between the ungrounded hot and grounded neutral conductors. If the gfci outlet is located in a bathroom or kitchen and the water facet is nearby then use the same procedure as explained above. The tester needs a ground to be able to simulate a leak to cause it to trip.
It will still trip if there is an actual current leak or if you use the device test button which does not require a ground to work. The gfci can feed through to a grounding receptacle which must be marked gfci protected. Gfci wiring configurations. Plug an extension cord into an outlet that does have a ground bring the end of the extension cord to the gfci outlet to be tested and then connect one lead wire of the induction voltage tester into the ground of the extension cord and the other lead wire of the tester into the small blade power prong of the gfci outlet and this will trip the gfci outlet. Leave enough wire for the receptacle to be pulled at least 4 6 inches from the box and attach any bare or green grounding. If the difference between the current leaving and returning through the current transformer of the gfci protection device is 5ma or11ma the solid state circuitry activates. The tester needs a ground to be able to simulate a leak to cause it to trip. A gfci device does not need a separate ground wire in order to operate. Gfci works fine on a 2 wire circuit it s just your typical tester that won t work. In a typical 2 wire circuit the current in amperes returning to the power supply will be the same as the current leaving the power supply except for small leakage.
