Why the neutral conductor indicator lights? For Dummies

I must say that the article is intended for electric kettles, well, just for electricians, dummies, who have decided to change the outlet, or switch alone and ran into an ambush.

And so, there is a problem with the words of home electrics: - "I poke a screwdriver with a light bulb in both holes and the light is on everywhere. Between glands sometimes sparks. What to do and how to know where is the negative? "

To begin to understand in terms of:

• Not a screwdriver with a light bulb and a screwdriver indicator.
• Not a hole in the wall jack and the port. If your outlet in addition to the holes and there is a hole, then it clearly should be changed.
• Not a piece of iron, and contacts.
• Lamp is not lit, the bulb glows. And if you have it off, then call the fire or cook their own)
• No "cons" in no electrics. There is only a phase and zero, and sometimes ground.

Of course, I'm not particularly a great electrician, something that I can tell. First of all check to see whether your driver with a light bulb "Activity Indicator". In other words, if the screwdriver, in addition to the LED, there is also a battery, then dispose of a screwdriver in the trash. She will live my life and nothing good from it do not wait.

Use only passive indicators, ie without battery inside.

Good or bad if the light is on in both holes? It depends on the cause. Next, analyze the causes themselves:

The first reason. One of the main reasons - it is open land. The one zero, is essentially a wire running to nowhere, into the ground, and nothing to show he should not. In older high-rise buildings goes to zero guard at the entrance, and there was often just cling to the body of the panel, which is not correct. If a zero is lit, it is likely that, where the electricity is leaking and zero it sees.

Go to his visor in the doorway and attach the indicator to the metal body panel (preferably colored). If the lamp is lit, then roll up and call an electrician, do not do anything. Let them come and looking for leaks.

The second reason, Power Grid apartment loaded much more than its rated power. This is particularly evident in older homes. Here it is necessary to disable all of the powerful tools, such as electric heaters, plugged-in conditioner and stuff like that. leave only lighting and again shove a screwdriver in both holes. If the problem persists, see the first or the third reason.

Reason number three. Very smart in electrical wiring time in the flat plate installed in the machines. These are the things that prevent you from trouble on and off the electricity at the circuit, they look like the picture below.

And the electrician put machines are not on stage, as it should be, and at zero. And such a problem happens very often. To check this, turn off the machine and then check the voltage with a screwdriver. If the screwdriver is lit in both holes, then immediately call me and let electrician correct the problem, because in this case, your appliances may be affected.

If after the automatic shutdown, your screwdriver indicator turns off only one "Hole", it means the machine should correctly in phase, and is lit at zero and then back to the first reason.

I must say that the described only applies to a single-phase electrical system. This is when you remove the socket and you can see there are only two wires, one is the phase, and the second is zero. If you have a three wire AC outlet, it is a two-phase system, where the two phases come on both holes and a third wire is grounded, that is, zero. Usually it is painted yellow with a green stripe.

He described only reason that I know and with whom faced. Perhaps there are more advanced electrical and write in comments what else could be the reason. I will be grateful.