conductors. If the unit is operating properly, power will be interrupted to the receptacle
and to any protected downstream devices, and the RESET button will pop out. If the
receptacle does not de-energize when the TEST button is pressed, the receptacle is
malfunctioning and must be replaced.
G.
Restore power by pressing the RESET button on the receptacle. If the RESET button
does not depress and reset when the button is pushed, verify that the supply conductors to
the receptacle are still energized. If the supply conductors are energized and the RESET
button will not depress, the unit is malfunction and must be replaced. If the supply
conductors are de-energized, check for overcurrent protective device, circuit breaker or
fuse, operation, and retest.
M.
Energize all of the loads supplied by the receptacle and any protected downstream
receptacles. If the circuit breaker trips when loads are energized, troubleshoot AFCIs,
GFCIs, fixed wiring and appliances in accordance with Annex A.
H.
Label all GFCI protected receptacles, including the GFCI receptacle and all protected
downstream receptacles, "GFCI Protected" in accordance with NEC requirements. Label
all three-prong receptacles that are installed on existing two-wire circuits and are GFCI
protected, "No Equipment Ground" in accordance with NEC requirements.
5.
Testing AFCIs and GFCIs
5.1
General
A.
AFCIs and GFCIs are susceptible to damage from voltage surges, and GFCIs are
susceptible to damage from stress over time from high capacity and high inrush loads.
Test AFCIs and GFCIs monthly, and test GFCIs after thunderstorms to ensure proper
operation.
B.
Test AFCIs and GFCIs by pressing the TEST button on the device.
C.
The TEST button of AFCIs is designed to simulate an arc to test the arc-fault detection
circuitry that triggers the mechanical operation of the device. A successful trip verifies
that the device is monitoring the entire branch circuit for arcing conditions.
D.
The TEST button of GFCIs is designed to create an imbalance between the phase and
neutral conductors to test the ground-fault detection circuitry that triggers the mechanical
operation of the device. A successful trip verifies that the device is monitoring the device
and any protected downstream devices for ground-fault conditions.
E.
Replace defective AFCIs and GFCIs immediately.
F.
Troubleshoot AFCIs, GFCIs, fixed wiring and appliances in accordance with Annex A.
