Typically the black wire is "hot", and the white wire is neutral. A 2 pole breaker is most commonly used for 240 V, and as such, you would typically use a 3 conductor wire, with black, red and white (+ ground). In a typical application, the black and red are used in the 2 pole breaker, and neutral is connected to the neutral bar in the breaker panel.
Yes no problem at all. The black conductor is connected to one of the two poles on the breaker. The white wire is connected to the other pole on the two pole breaker. In this situation, the electrical code requires the white wire to be identifies as a current carrying conductor. This is done by wrapping black electrical tape around the white wire. This will let anyone that works on the circuit in the future that the conductor is a current carrying conductor.
You will have to run new electrical wire or a single ground wire back to the panel (though the former is highly recommended). A GFCI outlet will cut off the circuit if it senses voltage leaking to ground. If there is no ground wire, it will not function.
The clamp part is for measuring amps via induction. You set meter to amps and clamp around only a single wire. Device you are measuring must be operating. This means you couldn't clamp around a lamp cord to a table lamp since the current induced in each direction cancels out. You would have to separate the wires. An electrician would carry a short extension cord with the wires already separated. Most often a clamp meter is use to checks amps in a breaker panel on the black wire coming from the breaker.
Power into the first outlet and out to all other outlets, black to gold and white to silver screw, ground wires to ground screw. From the outlet closest to the light switch run power from that outlet up to the switch box. Run another wire from the switch box up to the light. In the switch box tie all the whites together under a wire nut and push them back into the box. Tie all the ground wires together and connect that to the ground screw on the switch. Connect the 2 black wires you have left to the 2 screws on the switch. Does not matter which if you only have power in and power out to the light.
In a house, usually all the outlets in a room are on one breaker or fuse. Each thing plugged into those outlets consumes some electrical power. This is a number rated in Watts. In this case, the more Watts something consumes, the higher the current is (measured in Amps) in the wires that connect the outlets to the main power in the breaker box. The current in power circuit must be limited for safety reasons. The wires in the walls can only handle a certain amount of current safely. If too much current flows the wires can become extremely hot, possibly starting a fire.
There should be no reason to install two ground wires in the same conduit. Code requires that only a single path should be required if it is to carry a fault current. This ground wire should be single and continuous from the device back to the distribution panel. It is the fault current that is carried on the ground wire that trips the breaker or fault protection device. Don't confuse grounding wires with bonding wires.
No, it is not safe to have multiple wires of the same color on a single breaker. Each breaker should only have one wire per terminal to avoid overheating and potential electrical hazards. Consider installing a subpanel if you need to connect multiple circuits to the same breaker.
In the heater you will have two wires. You should then have 2 supply wires from the panel, and 2 wires from the thermostat. The neutral (white) supply wire should go to one of the wires on the heater. The hot (black) supply wire should connect to one wire from the thermostat. The other wire from the thermostat will connect to the other wire from the heater.
Yes.
Connect to two wires you have to the the spade connectors and forget the ground connector. The spade connector wires should be black and white. Black to gold and white to silver. If the wires coming from the heater happen to be red and white, then red goes to black. You could buy a simple lamp cord which has only tow wires.
The blue wire is the hot in this case. It is the hot for usually the fan and then either a red or black is the hot for the light. If there is a heating lamp usually that will be a yellow hot. If you have separate switches for them then then simply one wire for each black, other wise pigtail the black and the 2 wires coming from the unit together. Make sure that if you are using one switch for the fixture that the breaker is suited for the amperage.
Be sure that those wires coming from the box are for a recepticle and not a light switch.
More information is needed as to what device you are connecting to what power supply. The only two identifiable wires are the white and green. In North America the white colour is used for the circuit's neutral and the green is used for grounding of devices.
black wire is hot wire .And the white is the common or white is ground. Depends on what your talking about in an outlet or car battery. In a outlet the ground wire is green or bare copper. neutral is red and hot is black (I remember it by hot can kill you so black is death) if I am not mistaken. As for a car battery i think it's the opposite red is hot and black is neutral.
To wire a duplex receptacle using 14-3 wire, connect the black wire to the brass screw (hot), the red wire to the other brass screw (switched hot), the white wire to the silver screw (neutral), and the ground wire to the green screw (ground). For the 14-2 wire, connect the black wire to the brass screw, the white wire to the silver screw, and the ground wire to the green screw. Remember to turn off the power before making any connections and consult a professional if you're unsure.
To hook up the electrical plug with white, black, and ground wires to the house wires with white, black, red, and ground wires, you must connect the white wire from the plug to the white wire in the house, the black wire from the plug to the black or red wire in the house (check the wiring standard), and the ground wire from the plug to the ground wire in the house. Make sure to turn off power before making any connections and follow proper safety precautions.
You cannot wire a normal 120V outlet directly from a double pole circuit breaker as it is designed for higher voltage applications. You would need to install a single pole circuit breaker for a 120V outlet.
Code only allows one wire to be connected to a single pole breaker. Any additional circuitry has to be done in a junction box downstream from the breaker.