Who has a little better electrician wiring mouth decision

I don't know what kind of wire solution you want, I have a solution to estimate the current to see if you use it.

10 under 5, 100 on 2, 35, 70, 95 ...2 times and a half.

The temperature of the tube is folded. Copper wire upgrade counts. Bare wire upgrade calculated.

That is to say, 5 amps per square of less than 10 square meters, 2 amps per square of 100 square meters, discounts for those who wear pipes, copper wire upgrades, and 16 square meters for 10 square meters.

There is also a verbal decision to calculate the current according to the power.

The three-phase motor is 1kw, the current is 2 amps, the three-phase capacity kva, the current is 1 and a half times.

Electric heating capacitors and lighting are equivalent to three-phase viewing.

Single-phase 220, current ampere, two-phase 380, 1kw, current ampere.

After calculating the current according to the power, select the wire according to the above port. Hope it helps.

The electrician's wiring formula is as follows:

308 welding machine capacity, no-load current multiplied by five; The electric pen judges AC and DC, AC is bright and DC is dark, AC neon tube is bright throughout, and DC neon tube is bright at one end. Judge the two lines are the same and different, each hand holds a pen, the feet are insulated from the ground, the two pens each touch a line, with the eye ** a pen, not bright and bright is different.

1. The capacity of the three hundred and eight welding machine, the no-load current is multiplied by five.

A single-phase AC welding transformer is actually a special-purpose step-down transformer, and its basic working principle is roughly the same as that of ordinary transformers. In order to meet the requirements of the welding process, the welding transformer works in the short-circuit state, and it is required to have a certain arc striking voltage during welding. When the current of the welding bend section increases, the output voltage drops sharply.

According to p=ui.

2. The electric pen judges AC and DC, AC is bright and DC is dark.

The AC neon tube is bright throughout, and the DC neon tube is bright at one end. Note: When distinguishing between AC and DC, it is best to make a comparison between the "two electricity", so that it is obvious. When measuring alternating current, both ends of the neon tube shine at the same time, and when measuring direct current, only one end of the neon tube is extremely bright.

3. Judge that the two lines are the same and different, and hold a pen in each hand.

The feet are insulated from the ground, the two strokes each touch a line, with the eyes of a pen, not bright and bright. Note: During this test, remember that your feet must be insulated from the ground.

Because most of our country is 380 220V power supply, and transformers generally use neutral point direct grounding, so when doing the test, the human body and the earth must be insulated to avoid forming a loop, so as to avoid misjudgment.

The laying of the conduit can be fixed by different hangers or booms according to the terrain. If the line pipe is laid along the surface of the wall or the bottom of the building, the finished hanging parts (pipe codes) can be directly fixed on the wall or the bottom surface of the building; If the conduit is hung laying, it should be fixed with a boom.