3 proven method of determining the phase and zero without instruments

method №1 - Visual identification

first and most reliable way to independently determine where the phase and zero without tester - to examine the color of each wire insulation, on the basis of which to draw a conclusion.

The fact that the colors of the wires is just intended to be able to learn without devices which one lived neutral and which phase.To make it clearer, and you were able to correctly identify the phase and zero, provide a table with existing standards:

As you can see, the insulation may be a different color, so it is best to remember that 0 - it is always blue, and grounding - yellow-green (or only yellow / green).As a rule, the remaining third live - a phase that you and you need to decide.If the color code is missing, it is not an exception, finding phase and zero without tools and can be other ways, which we reviewed below!

Method №2 - Making kontrolku

second idea to determine without a tester, where the phase, and where the neutral wire in the socket is that it is necessary to make a control bulb improvised.It's very simple, we just need to find the bulb with a cartridge and two segments of the core wire, about 50 centimeters long.

cores are connected to the respective cartridge slots, one conductor mounted on the stripped to metallic colors heating pipes, and the second should be "probe" core interest to you.The lamp will light up in the event that if you touch a contact phase.In this simple way you can find out quickly without instruments, where the phase and zero.

Please note that this version of the search without the instrument dangerous and can cause electric shock.Be careful when determining the voltage and beware of touching a hand to the bare conductor!

If you do not have my incandescent lamps, can be used to build a homemade tester neon lamp, which will also determine the polarity.control print scheme will be as follows:

method №3 - Potatoes to help!

funny, yet effective idea, which allows you to determine the phase and zero without display, the meter or other tester.All that you need - kartoshinu, 2 wires 50 cm and a resistor of 1 Mohm.Find voltage can be as described above.The end of the first conductor is connected to the pipe, the second end is inserted into the potato slice, as shown in the photograph.As to the second wire, one end to be inserted into the same slice, to the maximum possible distance from the already inserted conductor, and the second you will feel those conclusions, on which you need to find the phase and zero without instruments.The definition is as follows:

• If the cut formed a small darkening - a phase conductor;
• no reaction did not happen - you zero "groped".

should immediately be noted that in this case the determination should be done with a small time delay in contact with the wires cut potatoes.You must touch the wire to kartoshinu and wait about 5-10 minutes, after which the result will be visible!

to similar technique can determine the polarity of the contacts in the DC circuit.For this, two wires fall in a cup of water and if one of them near begin to form bubbles as shown below in the image, then it is negative and, correspondingly, the second conductor - plus.

Here we provide the most simple ways of how to determine the phase and zero without instruments.Once again we draw your attention to the fact that security is only the first method.When using the latter two need to take precautions so you do not electric shock!
Also read:

• How to find a junction box in the wall
• Why spark plug when the plug
• How to find a wire in the wall