NO stands for Normally Open and NC is Normally Closed. It references a switching application. It is the base state of the switch. So if the load is connected to the NC terminal it will usually be energized and when the switching device is activated the circuit will open and the load will be de-energized.
The NO terminal would have the load de-energized until the switch was activated and then it would be energized.
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.
Grounding of I and C? to ground something is to have a wire that goes to a grounded connection the bare wire in a normal wire set.
you would wire a float switch into the control circuit i.e, the contactor coil (which is relatively low current but rated at least for the control voltage,, in most cases 120VAC). also in the same circuit would be the overload contacts. if the overload trips and/or the float switch opens then voltage is removed from the contactor coil
Its a power source such as a battery - Wire from the Positive on the battery to one contact on the lamp and a wire from the Negative of the battery to the other contact on the bulb
A 6 mm earth wire can be used to replace a 2.5 mm earth wire, but if there is an existing 6 mm earth wire it must be 6 mm all the way to the earth, and not replaced by a smaller wire between it and the earth connection.
The hot wire is usually connected to the common terminal of a NO, NC device. This type of contact arrangement is known as a "C "form arrangement.
how do you connect the wire from the alternater to the starter?
If there is a brass colored screw and a silver colored screw, the BLACK wire will connect to the brass screw. If you can't see a difference, connect the black wire to whichever screw connects to the CENTER contact of the light fixture.
Connect the sub woofer to the equalizer or amplifier. The positive wire will need to be connected to a power source. Connect the ground wire. Connect the auxiliary wire to the amplifier.
You take a wire and stick it to the positive end of the batter. Then connect another wire to the negative end of the battery. Connect both wires to the lightbulb.
Don't connect the red wire or you will die.
I connect the red wire to the blue wire to deactivate a bomb.
It depends on what 277 volt device you are trying to connect.
Connect to the circuit neutral wire which should also be white.
Connect the green wire to the brown striped black wire.
Which wire is the power
I'm going to take this as "How do you connect resistors is series?" just connect one wire of the first resistor to one wire of the second.