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When a light switched is turned on the circuit is usually closed.
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∙ 10y ago
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How do you de-energize a circuit?
To de-energize a circuit, the voltage has to be cut off at the source. This is usually done with a disconnect switch which is located just before the circuit's load. Turning off the breaker on a distribution panel will de-energize the circuit it is feeding. To make sure that the voltage can not be turned back on when work is being done on the circuit, the switch or breaker must have a lock off device to prevent the circuit from being turned on, except by the person that locked the circuit off.
Can you replace a 3-way light switch with a standard switch and cap off the wires or can you use the 3-way switch and make it into a standard switch?
It can be done but it requires knowledge about how a 3way is wired to convert it to a regular switch. It would involve testing live wires to determine where power starts at. You can't just replace one switch.
How do you convert a standard light fixture into a pull-chain one?
Shut off the power to the light circuit. Remove the old light switch if there is one. Remove the old lamp holder base. Make a diagram and note how the wires were attached, what colour screws to what colour wire. At the light switch wire nut the two wires that came off of the switch together. The switch plate cover will have to be replaced with a blank cover plate to cover the old switch box. Install the new pull chain lamp holder using the notes and diagram that you made. Some of the lamp holders that have a switch in them will not have terminal screws. The wire to the switch will be the "hot" wire. The other wire from the old lamp holder will be the neutral which should be a white wire. Insert the bulb and turn the power back on. Now the pull chain will control the light rather that the wall switch.
How do you wire an additional light to another light with a switch?
In the wall switch box you should have a white and black pair from your source of power (120 volts). The other pair of black and white wires from the wall box should be going to the light fixture junction box. With the power off, connect the two white wires together with a wire nut. Connect the two bare copper ground wires together making sure that at least one of the ground wires goes under the green screw in the switch junction box. Turn the switch to the off position, no little indicator bump showing on the switch toggle lever. Now take the black incoming hot wire and put it under the top screw on the switch. Hot wires always go to the top of switches. Now put the black wire that is going to the light fixture under the bottom screw. Tighten both. Install the switch into the wall box with the switch handle in the down position. All switches when installed must be off in the down position. Install the switch plate cover.
How do you wire a light fixture with a four way switch?
Answer for USA, Canada and countries running a 60 Hz supply service.US NEC:A 3-way switching system is where one light, or a set of lights, can be controlled from two switches. Each switch is a one pole double-throw switch. The incoming Hot feed is connected to the center point of one switch and the load is connected to the center point of the other switch. The two outer poles of both switches are connected together. The load can be turned on or off from either switch. Note that all wires on both switches are considered hot, so none of them may be wires having white insulation. Typically, red and black are used.A 4-way switching system is where a light or a set of lights can be controlled from three or more switches. The two outer switches are the same as if they were 3-way switches. Each inner switch is a two pole double throw reversing switch with only four connections. It is wired to reverse the two hot conductors that run between the two outer switches. The load can be turned on or off from any switch.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Why wont done light in 2006 Subaru Outback come on?
1) light bulb burned out 2) switch not turned on 3) switch broken 4) power supply disconnected
How do you switch on and off the xray machine?
A modern X-ray machine is turned on-and-off by a timer-operated electrical switch. The power is turned on when the operator presses a start button and is turned off automatically by the timer. This is done to reduce the likelihood of operator error.
How do you replace brake light switch on suzuki forenza?
To replace the brake light switch on a Suzuki Forenza, locate it on the pedal shaft, release the wires that connect it, twist and then take out the old brake light switch and put a new switch in its place. The job can be done by any handy owner.
How do you split ceiling fan to be controlled by a 2way switch and the light by 2-3ways?
By 2 way switch I assume you mean a single pole switch. If so yes this can be done.
How do you hook up a switch to a light using a marine battery?
Hey. Same as any battery. Connect the Negative terminal straight to the Negative on the light (if needed), Normally the outer rim of the globe. Connect the positive terminal to the switch, then from the other plug on the switch to the positive terminal to the light. Done.
How is the wiring done in houses and other occupied buildings?
It is in parallel, so one light can be on while others are turned off.
If you were in a car that was going at the speed of light and you turned on the lights what would happen?
As it has never been done and never will be done, the question is impossible to answer and I would only be guessing at an answer. I do not guess.
Normal open relay?
A relay is an electrical device that acts like a light switch. But instead of a person turning the switch off and on, it is done by energizing it from a remote source. So when you hook two wires to a relay, if the relay is normally open, there will be no connection between the two wires until the relay receives a signal (outside source to energize relay) to close. Simply put, an open relay is the same as a light switch that is turned off, and will always be off until told to turn on.
Can same switch box be provided for power and lighting in a house?
Yes this is done all the time in house wiring. The power source is brought to a light switch's junction box. The source for the light is taken through the switch to turn the light off and on. The same source feeder is then taken to receptacle junction boxes to power devices that have to be plugged in.
How do you replace the brake light switch on a Skoda octavia?
This is a process that should be done with care. Looking through your user's manual or taking to a mechanic can make sure it is done right.
What would cause a dome light not to come on in Ford van?
Could be the bulb,fuse,switch,wiring? what have you done so far?
My polo won't start after the engine is done?
petrol is there,spark also the but on the dash i dont see a check engine light when i switch the car ON
