National standard cable is an important carrier for the transportation of power and signals, but once there is a problem, the impact is very serious. Therefore, when choosing wire and cable, we must pay attention to the purchase of national standard genuine products. But now there are many cable companies, good and bad, many companies say that the national standard, in fact, it is not the national standard, so it is necessary to teach you how to distinguish the national standard wire and cable.

1. Recognize the certification mark. When purchasing, be sure to check whether there is a "CCC" certification mark on the certificate, model specifications, rated voltage, length, manufacturing date, certification number, inspection, implementation standards, factory name, factory address and other marks are clear. 2, pay attention to packaging. When purchasing, pay attention to the packaging to be beautiful, printing to be clear, model specifications, factory name, factory address and so on.

3. Check the appearance of the product. When purchasing, pay attention to check the appearance to be smooth and round, uniform color, feel good. If it is rubber wire and cable, the sheath and insulation can be burned by cigarette butts, and the surface is completely without damage.

4. Check the conductor. There are many kinds of conductor materials, pure copper, aluminum, aluminum alloy, etc., the national standard is generally smooth and shiny, if the color is dim, the surface is uneven, please choose carefully.

5. Check the length. It appears that the length is very important, the general national standard is 95 meters, and the gap between the front and back can not exceed 1 meter. In the purchase of wire and cable, can not be cheap, many cheap products, the length is not up to standard, the length is not up to standard, it is not the national standard.

There are more and more types of GB cables on the market, how to distinguish the "GB" and "non-standard" of wire and cable? One look, two try, three weigh, four compare the price, five see the copper, five tricks see.

Nowadays, the application of wire and cable is more and more widespread, and the types of wire and cable sold on the market are also more and more. So, how should we distinguish the "national standard" and "non-standard" of wire and cable? To this end, the editor of this magazine consulted the industry veteran, they gave the difference between wire and cable "national standard" and "non-standard" five tricks:

Take a look. To see whether the wire and cable products have a quality system certificate, to see whether the certificate is standardized, to see whether the factory name, site, inspection seal, production date, to see whether the wire is printed with trademarks, specifications, voltage, etc. Also look at the cross section of the wire copper core, excellent copper color bright, soft color, otherwise it is defective.

Let's try again. It is advisable to bend a wire head repeatedly by hand, and those with soft feel, good fatigue strength, large plastic or rubber feel elasticity and no cracks on the wire insulator are excellent products.

Three weights. Good quality national standard cable, generally every 100m weight is within the specified weight range. For example, the commonly used plastic insulated single strand copper core wire with a cross-sectional area of 1.5mm2 has a weight of 1.8-1.9kg per 100m; 2.5mm2 plastic insulated single strand copper core wire, weighing 3-3.1kg per 100m; 4.0mm2 plastic insulated single strand copper core wire, 4.4-4.6kg per 100m weight, etc. Poor quality wire weight is insufficient, either the length is not enough, or the wire copper core impurities are too much

Four to the price. Because of the low production cost of fake and shoddy wires, vendors often sell at low prices under the guise of cheap and good quality, so that people are fooled. Therefore, when buying, be careful not to get carried away by the "good quality and low price" advertised by businesses and eventually be deceived. Five see copper. Qualified copper wire copper core should be purple, shiny, soft. The shoddy copper core wire is purplish black, yellow or white, many impurities, poor mechanical strength, poor toughness, a little force will break, and the wire is often broken. When checking, you just peel off one end of the wire, and then rub a piece of white paper on the copper core, if there is black material on the white paper, indicating that there are more impurities in the copper core, you can be identified as "non-standard" wire and cable.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098