Wire tips and buying tips
First, the basic knowledge of the wire 1, plastic copper wire, The letter B stands for the wire for the wiring, the letter V stands for the insulating material PVC, and the 4 for the cross-sectional area of ​​the conductor is 4 mm2, meaning that the PVC insulated wire uses 4 square wires. Commonly used BV lines range in cross-sectional area from 0.5 to 185. The larger the cross-sectional area is, the smaller the resistance of the conductor is, and the larger the allowable current is. Of course, if the use of the environment or other reasons for the higher requirements of the wire, you can also use environmentally friendly wires (insulation material has little effect on the environment), flame-retardant or fire-resistant wire (resistant to 70 degrees to 105 degrees), etc. Sheathed cable, The meaning of the letter R is soft, the first letter V represents the insulating material polyvinyl chloride, the second V represents the jacket insulating material is also polyvinyl chloride, 3 represents the conductor core number is 3 cores, and 2.5 represents the single core conductor The area is 2.5 square millimeters, which means a PVC insulated PVC sheathed 3-core 2.5 square flexible cable. Jacket cable is mainly used in electrical appliances, instruments and electronic equipment as well as power lines, control lines and signal transmission lines. The number of cores is from 2 to 5, and the cross-sectional area of ​​a single core conductor is from 0.12 to 6 and so on. Electric wire wardrobe brand lighting brand electrical socket lighting residential room Ductile Drainage Manhole Cover
Ductile Drainage Manhole Cover made of ductile iron to use on the drainage ditch and other places, Such as bridge, parking, on the road side and so on.
Manhole cover, ductile manhole cover, ductile iron manhole cover, Cast iron manhole. Runchun Casting (Zhoushan) Co., Ltd. , https://www.en124casting.com
Home appliances are essential for home use. In recent years, with the development and popularization of home appliances, household electricity consumption has rapidly increased. In order to ensure safe home use, consumers should pay attention to the following matters when purchasing and using electric wires. 
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