Home Circuit Problems? Faulty issues in home circuits

Are you saying that your device's 220v input is connected to the live wire and the other wire is not connected to the neutral line but to the ground wire, can it be used normally?

Whether it can be used normally depends on whether there is leakage protection in your home line, if there is, it cannot be used, and it can be used without it, but there are potential safety hazards.

Old-fashioned meters are available. The new type of meter is empty and contains leakage protection, which will trip directly. Test it yourself.

Added: Not available. Because the current does not form a loop, it cannot drive the device!

It can work normally when the grounding is reliable and there is no leakage protection at the front end. If there is a leakage protection switch, the leakage switch will trip and cannot work.

For alternating current, there is no saying that there is a positive and negative electrode, since there is a positive and negative electrode equipment, then it means that he is DC! DC equipment, connected to AC, if there is a diode for protection inside, it can be used, if not, it may not move, or it may burn out. Of course, it is also possible that the device is compatible with communication, depending on the type of device.

Household appliances are generally AC 220V, and the positive and negative poles you are talking about are DC appliances, right? There is a high chance that the device will burn out when connected.

This is a method of stealing electricity in the past, and there is a great safety risk, don't do it!

It should not be able to be used normally, it can not be grounded, and it cannot be connected without the zero line.

Summary. This can be caused by a broken or loose power switch. When the switch is loosened or disconnected, it will interrupt the circuit, causing the circuit to fail to energize.

When you push the switch down, it re-establishes the circuit, which makes the appliance work properly. The first step to solve the problem is to check if the power switch is working. You can try switching the switch from "off" to "on", making sure it has been pushed into place, and listening for the appliance to be working properly.

If the switch is still not working, it is recommended that you have an electrician or professional inspect and repair the circuit.

Hello, please roll the trail and ask any questions you need from me? Home appliances are indispensable equipment in our daily life, but we need to pay attention to the safety of use, such as plugging in tightly, not overloading, etc. If you have a specific question, you can provide more detailed information, and I will try my best to answer it for you early in the morning.

The electric switch is pushed up and there is no power, and there is electricity when it is pushed down, what is the reason.

This can be caused by a disconnected or loose switch. When the switch is loosened or disconnected, it will interrupt the circuit, causing the circuit to not be able to pass through the local power. When you push the switch down, it re-establishes the circuit, which makes the appliance work properly.

The first step to solve the problem is to check if the power switch is working. You can try switching the switch from "off" to "on", making sure it has been pushed into place, and listening for the appliance to be working properly. If the switch is still not working properly, it is recommended that you have an electrician or professional to inspect and repair the circuit.

If the neutral line of the live wire is directly shorted, it will trip. If the two wires of the lampholder are short-circuited, it will trip, the bulb is fine, but it is not lit, and the line can still be used after repair. If the two wires of the switch are broken, the switch will not work, and the electrical appliances he controls will never start, and if the switch is short-circuited, it will not work, but the electrical appliances he controls will always be on and will not be turned off.

What do you mean by the wire of the lamp head? The lamphead is not enough.

Is it a spiral head, where is there any wire, the wire is on the lampholder, Happy New Year!

If the circuit is disconnected, it may not light up.

If there is a short circuit, it may burst out, or it may not light up, because it is possible that one circuit in one main circuit will be ignored, and directly from other circuits to the negative pole of the power supply (because they are all connected in parallel, draw a parallel circuit diagram, at a glance).

If the bulb connected in parallel with the voltmeter is disconnected, the entire circuit will not be energized, but the voltmeter can measure the voltage of the power supply through the bulb that is not disconnected (can be deflected). Answer C is correct.

If one bulb is short-circuited, the other bulb should be able to emit light, so a b is incorrect;

If both bulbs are open, then the voltmeter cannot be deflected, so d is incorrect.