distribution panel![click to hear](/images/speaker.jpg)
Set of devices forming the junction of the public electricity grid and the electric circuits of a dwelling.
ground connection ![click to hear](/images/speaker.jpg)
Metal conductor attached to the ground wire in order to ground the entire circuit.
ground wire ![click to hear](/images/speaker.jpg)
Wire conducting the current from the ground/neutral bus bar to the ground connection in the event of a short circuit.
terminal ![click to hear](/images/speaker.jpg)
Part of the ground/neutral bus bar to which a neutral wire and the ground wire of a circuit are attached.
ground/neutral bus bar ![click to hear](/images/speaker.jpg)
Receives the current from the neutral grounded wires of the various circuits and conducts them to the neutral service wire and the ground connection.
neutral wire ![click to hear](/images/speaker.jpg)
Wire having no electric charge that allows the current to return to the distribution panel and the grid.
ground fault circuit interrupter ![click to hear](/images/speaker.jpg)
Device reducing the risk of electric shock in a humid place in the event of an accidental leak of current to the ground.
single circuit breaker ![click to hear](/images/speaker.jpg)
Protection device for a 120-volt circuit that, in the event of overload, is released and thus cuts off electricity to the circuits.
double circuit breaker ![click to hear](/images/speaker.jpg)
Protection device for a 240-volt circuit that, in the event of overload, is released and thus cuts off electricity to the circuits.
main breaker ![click to hear](/images/speaker.jpg)
Mechanism controlling the supply of electricity to the hot bus bars; it allows the current to all the dwelling’s circuits to be cut.
knockout ![click to hear](/images/speaker.jpg)
Partially cut-out metal part that can be removed if needed in order to attach a supplementary cable to the panel.
bonding jumper ![click to hear](/images/speaker.jpg)
Screw inserted into the metal box of the panel allowing it to be connected to the neutral hot bus bar.
plastic insulator ![click to hear](/images/speaker.jpg)
Plate made of nonconductive material preventing the hot bus bars from coming in contact with the back of the panel.
ground ![click to hear](/images/speaker.jpg)
Part connecting the neutral hot bus bar that allows the current from the circuits’ neutral wires to be transferred to the neutral service wire.
hot bus bar ![click to hear](/images/speaker.jpg)
Conductive part of the panel into which the breakers for each circuit are plugged.
120-volt circuit ![click to hear](/images/speaker.jpg)
Composed of one live wire, one neutral wire and one grounded wire; it allows electricity to reach a small appliance or a light.
240-volt circuit ![click to hear](/images/speaker.jpg)
Composed of two lives wires, one neutral wire and one grounded wire; this allows electricity to reach devices requiring a lot of power.
neutral service wire ![click to hear](/images/speaker.jpg)
Wire having no electric charge that, via the neutral hot bus bar, returns the current from domestic circuits to the grid.
ground bond ![click to hear](/images/speaker.jpg)
Links the bonding jumper to the neutral hot bus bar.
main power cable ![click to hear](/images/speaker.jpg)
Live wire conducting the electric current.
connector ![click to hear](/images/speaker.jpg)
Device for screwing the electric-connection conduit to the panel box.
240-volt feeder cable ![click to hear](/images/speaker.jpg)
Cable consisting of three wires, one neutral and two live, conducting an electric current from the grid to the distribution panel.