First, how to choose wire specifications
1, with fire
When choosing wires, you can choose to use fire to distinguish between good and bad wires. After the insulation material is ignited, remove the fire source. If it goes out within 5s, it has a certain flame retardant function, and it should be a national standard wire.
2. Look at the kernel
Looking at the inner core of the wire, you can actually see the quality of the wire. The material of the inner core (copper) is brighter and softer, and copper is better. The national standard requires that the inner core must use pure copper.
3. Look at online printing
According to the national regulations, relevant signs, such as product model and company name, must be printed on the line. , and the mark spacing should not exceed 50 cm. The printed words should be clear and evenly spaced, which should be the national standard line produced by big manufacturers.
Step 4 look at the packaging
Welding wire packaging looks neat and well packaged, and the items on the certificate (trademark, factory name, address, specification, section, inspector, etc.). ) is complete, whether to print clearly. Generally, the wires produced by large manufacturers will meet the relevant national standards, and the quality of such wires is still very good.
Second, the list of home improvement wire brands
1, put on the cable.
The upper cable was established in 1967. Belonging to a Jiangsu enterprise, it is a powerful provincial enterprise group. Mainly in science and technology, engineering, trade-oriented, while selling in the market. It's good to know the evaluation of this brand.
2. Baosheng Cable
Baosheng cable has technology and management, and its products cover a wide range, involving civil and special fields, and are also widely used in major international projects, which shows the high quality of its wires.
3. Nanyang cable
Nanyang Cable is a cable manufacturer in Shanghai. The company has advanced production equipment and technology, and the product quality is trustworthy, providing users with safe electricity.
4. Shenghua Cable
Shenghua Cable is a large private enterprise in Shanghai. Established in 1987. After years of continuous efforts, it was formally established as Shanghai Shenghua Cable Group in 2002. It is a trustworthy brand.
5. Hengtong Optoelectronics
Hengtong Optoelectronics is a key high-tech enterprise, mainly producing optical rods, optical fibers, optical cables and other equipment. Its products have excellent quality and considerable sales.
Third, the price of household wires.
The price of household wires is generally calculated according to square meters, and some manufacturers will also calculate according to how many rolls. The following are some wire prices we found online for your reference:
1, rejuvenation wire and cable RVV2 core 0.2 square sheath line reference price: 37 yuan.
2. Multicolored Jiangnan Electric Wire BVR2.5 Multi-strand Soft Wire Copper Core Electric Wire 95m Reference Price: 158 yuan.
3. Panda Line 2.5 square BV single-core line 100 m/roll red, blue, yellow, green, white and black Reference price: 2 14 yuan.
4. China Jiangnan electric wire BV2.5 square copper core single core reference price: 136.5 yuan.
Fourth, how to install household wires
The installation of household wires is generally like this, and copper wires are basically wound together inside the wires. Only in this way can we ensure that the wire connector will not be hit, short-circuited or poorly contacted. This is based on the skills of each electrician, and many people who are not electricians know it. Another installation method may be rare, that is, its main line cannot be cut off. The attached wire is wound around the main wire for 6-8 turns. The phenomenon of electric wire sparking, short circuit and poor contact is very serious, and it is very simple to deal with it. Sparking and short-circuiting of wires are caused by the lack of correct connectors. When the connector is loose, ions will be generated when high load current passes. Ions repel each other much like welding sparks, and the temperature also rises. Soon, if they can stick, they will be charged, but if they can't, they will form a short circuit.
Bian Xiao reminded:
How to install household wires must be arranged in an orderly manner, and different wires should have different signs. Convenient maintenance and inspection. Generally, high-voltage and low-voltage lines need to be marked, while red lines are often used for fire lines and blue lines for zero lines. As for the ground wire, some are gray and some are gray. This facilitates the later maintenance.
The above is about how to choose wire specifications and wire brand list for home improvement. I hope it will help everyone!