China Fangyu(shanghai)Automation Technology Co.,Ltd Company News

 

 

 

 

Dry Goods Sharing, One Minute To Take You To Understand The Purchase Points Of Wires And Cables   What are the main points of purchasing wires and cables? Let's take a look at it together. As the main carrier of power transmission, wire and cable are widely used in electrical equipment, lighting lines, household appliances, etc. The quality of wire and cable directly affects the quality of the project and the safety of consumers' lives and property. There are many types of wires on the market, and you should use the appropriate wire according to your own electrical load. The wires sold on the market are cheap, and some people are cheaper first, but the cheap wires often fail to achieve the performance he described and bring themselves a lot of security risks. The production technology content of the wires is not too high, and the raw materials are not too different. If it's too cheap, you can't get rid of the job, and you can't give enough of it. How to identify it? Let me show you some easier ways to identify. 1. Please show me the packaging. The national standard front is often better, neat, and has a sense of quality in the hand. 2. To open the package to see the wires inside. National standard wire 1.5-6 square wire requirements are leather thickness (insulation thickness) of 0.7 mm, too thick is not a mark. Correspondingly, his heart is definitely not enough. The cord can be pulled hard. It is generally the national standard that is not easy to tear 3. This is a national standard line with a certain flame retardant function, which is extinguished within 5s after burning once with fire. 4. Look inside. The higher the gloss of the inner material (copper), the better the copper, the luminosity is uniform, shiny, and there is no layering. National standards require that the inner core must use oxygen-free copper. Unlike signs like black bar copper that could be an accident hazard. 5. The thickness of the inner core The state has certain requirements, but it is not very strict. But not much wrong. Just small things. This is an error invisible to ordinary eyes. 6. For the length, there is no mandatory requirement by the state to make rice, but many manufacturers also make rice. It is not necessarily the national standard to make rice, but the general national standard generally does not make rice. Not a cover, Tamina is just a ploy. 7. The state stipulates that the front must be marked with certain signs. If the maximum value does not exceed 500 mm, the following indication will appear. There are generally the product's trademark, manufacturer's name, implementation standards and so on. What is the service scope of wire and cable? Let's take a look at it together. Power system: The wire and cable products used in the power system mainly include overhead bare wires, passenger cars (buses), power cables (plastic cables, oil-paper power cables (basically replaced by plastic power cables), rubber sheathed cables, overhead insulated cables), Branch cable (partial bus replacement), magnet wire and electrical equipment wire and cable for electrical equipment, etc. Information transmission system: The wires and cables used in the information transmission system mainly include urban cables, TV cables, electronic cables, wireless cables, optical cables, data cables, electromagnetic wires, power communication or other composite cables. Mechanical Instrumentation Systems: This section applies to almost all products except overhead exposed wires, but mainly includes power cords, magnet wires, data wires, instrumentation cables, etc.