Every time a house is refurbished, it involves the distribution and installation of the wires. Because the wires are inconvenient to adjust after the decoration, the wires must be installed and installed during the renovation. So, how to take home wire ? What should pay attention to when the wire is installed? The following Xiao Bian will give you the relevant knowledge.
How to connect the wire
1. How do we get the wire? First we need to know about the wire. L is the fire wire, N is the neutral wire and the neutral wire. The general conductor will use three colors: red, green, and yellow. The neutral line is generally blue. In general, the jack on the right side of the socket is the hot line, and the left side is the neutral line.
2. When installing the wire, you must know the principle of left-to-right and middle-fire. The red line is the hot line, the blue line is the neutral line, and the yellow-green color line represents the ground line.
3. How to connect the wires? When connecting the wires, the wires must be fastened together, and they must be smooth and not punctured. Before the wire is disconnected, we must press the wires and then wrap them around the openings to ensure the wire ends. Disconnect at the joint. When connecting two insulated wires, the insulation of the wire should be stripped, then the inner core should be wiped clean, and then the strands should be twisted and welded.
4. If wires are connected to fuses, switches, and other equipment, a special connector must be soldered to the wire end. The screw must be tightened in the same direction as the ring. This avoids loosening the thread when tightening the nut.
5. When selecting electrical appliances, the matching of electrical appliances must not exceed the matching of electrical wires. This is to prevent the electrical wires from catching fire or premature aging of electrical wires.
Wire installation precautions
1. When installing the wire, pay attention to the correct connection method. During the process of installing the wire, avoid the connector from appearing. If the connector shows a large resistance, the wire will become hot. If wire joints occur, in order to avoid accidents, wire joints should be tightly wrapped with insulating tape.
2. When installing the wires, care must be taken to choose a reasonable type of installation. There are two different forms of concealed and surface mounted wires. Concealed installation refers to wires laid in places such as inside ceilings or inside walls. In this case, for the sake of safety, professional personnel are required to perform the operation. Surface installation means laying along the surface of walls and ceilings, etc. It is not possible to fold or squeeze the wires during surface mounting. Secure the wires.
3. Please pay attention to the correct use of the ground wire when installing the wire, for example, some household appliances: when using three-phase plugs for appliances such as refrigerators and washing machines, be sure to install a reliable ground wire.
The article concludes: In order to ensure the safety of the use of household electrical wiring in the future, it must be followed in accordance with the rules during the renovation. At the same time, installation should also pay attention to some safety issues. It is hoped that the above home improvement wiring and wiring precautions can help everyone.
The invention and use of stainless steel can be traced back to the First World War. At that time, the British guns on the battlefield were always transported back to the rear due to wear and tear. The military production department ordered Brearley to develop high-strength wear-resistant alloy steel, specializing in solving the wear problem of the gun chamber. Brearley and his assistants collected various types of steel and alloy steels produced at home and abroad, conducted performance experiments on various types of machinery, and then selected more suitable steels to make guns. One day, they experimented with an alloy steel containing a large amount of chromium. After the wear resistance test, they found that the alloy was not wear-resistant, indicating that it could not make guns. So they recorded the experimental results and threw it in the corner. . One day a few months later, an assistant rushed to Brearley with a piece of shiny steel and said, "Sir, this is the alloy steel sent by Mr. Mullah I found when I was cleaning the warehouse. You Do you want to experiment to see what special effect it has!" "Okay!" Brearley said happily, looking at the bright and dazzling steel.
The experimental results show that it is a stainless steel that is not afraid of acid, alkali and salt. This stainless steel was invented by Mullah in Germany in 1912. However, Mullah did not know what this stainless steel was used for.
Brierley thought to himself: "This kind of non-wear-resistant but corrosion-resistant steel can't be used to make guns. Can it be used to make tableware?" He went ahead and made a stainless steel fruit knife, fork, spoon, and fruit plate and folding knives.
The stainless steel invented by Brearley was patented in the United Kingdom in 1916 and began to be mass-produced. Since then, stainless steel accidentally discovered from garbage heaps has swept the world, and Henry Brearley is also known as the "father of stainless steel".
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