How to determine phase and zero without any devices, three working embodiment

So, let's imagine the next moment, you urgently need to replace the socket in the house and you have no idea where the phase and neutral wire where (and this is very important for some equipment). At the same time, this situation is aggravated by the fact that you do not have any tseshki indicator. What to do, is there no way out of this impasse? I know as much as three workers exit and tell about them now.

The first option - Visual determination

This method is the easiest. As it is known, in the energy sector there is a standard marking and a competent electrician is required to strictly follow it. But in this scheme are given all possible wire performance

From the above figure shows that the neutral conductor is blue, the land denoted Verdure yellow color and other colors farmed out phase. But as practice shows, not so much experts really strictly follow this rule, so even if the color you see a live wire, it may well turn out to be zero.

Second embodiment - The use of a control lamp

As it may sound strange in an age of all sorts of gadgets testers and multimeters, control print very much alive and make it at home can be just 15 minutes. For this we need a cartridge, the two pieces of wire in half a meter long, and light itself.

Wires attached to the cartridge (on the other side of the wire as we clean the insulation), is screwed into the light bulb and all our control print ready. Now we need to find land. Bare to bright metal heating tube, is quite suitable for this purpose. The second end of the control lamp leans against the bare wire or inserted into the wall socket. If the lamp lights, this phase is lived. If the lamp is not lit, this wire is zero.

Be very careful when using this method, as you will be dealing with bare wires, energized.

This technique (using heat pipes to the ground) Absolutely forbidden use in apartment buildings. Since you apply tension to the tube 220, and they can relate to other tenants.

The third option - use the raw potatoes

I understand your skeptical smile, but this method really works. You will need: raw potato, two cores on two feet long, and the resistance of 1 Mohm. Wiring diagram is as follows: we take vein and put on the ground bus, and the other wire is stuck in half the potatoes. Now, take a second wire and sticks to the same aforesaid potatoes from near the first conductor, the second end this wire (required through the resistor) is inserted into the socket outlet or leans against the bared wire. Now it is important to wait at least 10 minutes.

After that disable our system, if the potato was completely clean, it is neutral. If, however, it was formed on the green patina, this phase

So we looked at the three most popular and most important working methods of determining the phase and zero, without any special equipment.

Thanks for attention.

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