It is easy to understand what books to buy for the installation of electrical circuits in rural buil

Materials required for applying for the installation of electricity meters for newly built houses in rural areas: 1. Original ID card; 2. A copy of the ID card. How to apply: Go directly to the local State Grid with the materials to apply for a new user, and then there will be an electrician to help install it.

The spring bends better, and the stringing is smoother. However, the spring bend needs to be more ductile of the pipe, and it needs to be tested on the spot when buying the tube, and at the same time, it is slightly higher. It is better to walk the wall of the hidden pipe, and it will be easier to transform the line in the future.

Generally, when decorating again, if the ground is removed, the labor cost is relatively high. Please also note: 1. Trunk pipelines and branch pipelines should be distinguished from the diameter and wire diameter, and the load should be ensured and there should be an appropriate margin under the premise that they should not be wasted.

Generally, each square millimeter of line section carries 4-5A current, and the inner line section area of the pipe does not exceed 30-40% of the inner diameter of the pipe. In other words: 20 pipes for the main pipe, 16 pipes for the branch pipes, and 4 mm2 or 6 mm2 for the main line.

For sockets, lamp heads, and air conditioning sockets, 4mm2. It can also be adjusted according to the load. 2. It is recommended to add a ground wire in the distribution box, if the power supply line is not, you can add a ground wire drill behind the house, generally 30 * 30 angle steel buried, buried depth of 3-4m.

Then all the sockets are grounded. 3. Lighting lines, socket distribution lines, and air conditioning socket distribution lines are controlled by branches, especially do not borrow the zero line casually. I haven't done it for a long time, and I only think about these for the time being, I hope it will be useful.

The first layer is rated at 110 volts.

The second layer has a rated supply voltage of 220 volts.

The third layer has a rated supply voltage of 380 volts.

The elbow must be bent with a spring: it is convenient to construct and more convenient to maintain in the future; And save the money of the elbow, a spring is only about 3 yuan; The angle and arc of the spring can be adjusted.

In layman's terms. wall, grooving. Cast-in-place slabs, reserved. PVC pipes are bent with springs, and iron, with pipe benders.

The spring bending is smoother than using the elbow, and the elbow is saved, you look at it: hei

If you even go to high school, then you need to be patient, learn chemistry and physics first, and lay a good foundation for getting started. If you buy a book, you should buy it first based on buying [Electrical and Electronic Technology] and [Electronic Technology].

Hello! Calculate the total electricity usage, then add a 20% margin to purchase the total air and cables based on this value.

Regarding the branch, it is also calculated that the total power of the branch is calculated, and the branch is opened according to the total amount.

How to connect the refrigerator and the light together.

Find a master, combine the theoretical knowledge in the book, and you can install the lighting circuit yourself in less than half a month!

Just understand the series-parallel connection.

What kind of requirements do you want?