Cable manufacturers share with you some tips on how to choose wires and cables
In modern society, electricity is an indispensable energy source for people's lives and work. As an important carrier of power transmission, the quality of wires and cables directly affects the safety of electricity use.
There are many hazards of unqualified wires and cables. First, wires and cables with unqualified markings may cause construction workers to identify them incorrectly, and in serious cases, electrical accidents may occur. Secondly, unqualified structural dimensions, such as substandard sheath and insulation thickness, will reduce the electrical strength of wires and cables, shorten their service life, and even be broken down, leading to electrical short circuits and fires. Furthermore, unqualified tensile strength and elongation before sheath insulation aging will greatly shorten the service life of wires and cables, and insulators are prone to breakage under certain conditions, causing the risk of electric shock short circuits. In addition, wires with unqualified conductor resistance will increase the loss of current on the line and aggravate the heating of wires and cables, which will not only easily cause fires, but also accelerate the aging of the insulation layer.
As a consumer, how should you choose wires and cables? Below, cable manufacturers share some knowledge about the purchase of wires and cables for you.
1. Look at the label logo. The packaging labels of wires and cables generally include the following contents: factory name, address, registered trademark, product name, specification model, length, production date, implemented standard number, "3C" certification mark and number, production date, traceability QR code, etc., especially on cables and wires, there should be a continuity mark including factory name, rated voltage, model, and number of meters.
2. Check the appearance of the product. The appearance of regular products should be smooth, round, and uniform in color. The outer plastic skin of the wire should be bright in color and fine in texture. The conductor uses electrolytic copper, and the outer layer is bright and slightly soft. Informal products use recycled plastics, which are dull in color, loose in texture, and the copper of the conductor is dark and hard. They are recycled miscellaneous copper, with high resistivity and poor conductivity.
3. Pay attention to the length. The certificate of conformity has length markings and the number of meters on the line. You can use a ruler to measure the length of a few meter sections to see if the length of the wire is "short of a pound or two".
4. Check the surface of the protective layer. Wires and cables made of recycled plastics or poor quality plastics often have bubbles and granulation on the surface.
5. Check the cross section. Whether the core of the wire and cable is eccentric, and whether the thickness of the sheath is uniform and appropriate.
6. Check the weight. The weight of the wires of the specified material and size is certain. If it is overweight or underweight, it reflects that there is a problem with the materials used in the wires and cables or the length of the wires and cables does not meet the standard requirements. This is the case with wires and cables that are often found to be insufficient in length on the market.
7. Look at the price. Due to the current unstable price of copper materials in the market, the price of wires and cables fluctuates. Therefore, consumers should compare prices from different stores when purchasing wires. Especially for cheap wires, they should be purchased with caution.
8. Look at the brand. When purchasing, you should give priority to wires and cables produced by famous brands and manufacturers with good quality reputation.
In short, we should pay attention to the selection of wires and cables, because it is related to the safety of our lives and property and the stable operation of the power system. Foshan Yuejiaxin Wire and Cable Co., Ltd. is a manufacturer specializing in the production of wire and cable products. The company produces a variety of cables to meet the diverse needs of different customers.
