In recent years, about the weak cable products fake and shoddy news emerge in an endless stream, many illegal manufacturers in the cable industry to pursue interests at the expense of product quality, so that the cable market is mixed, there is a lot of difficulty in consumer selection. As for the quality, whether the length is up to standard, consumers are more difficult to determine. In this year's 3.15, some unqualified cable products were ruthlessly exposed, which also sounded the alarm to the cable industry - to improve quality and efficiency, there is a long way to go. What is a look, is to see whether there is a quality system certificate; See whether the certificate is standard; See whether there is a factory name, factory address, inspection seal, production date; See whether the wires and cables are printed with trademarks, specifications, voltages, etc. The main methods are:

1. Recognize the certification mark

When purchasing, be sure to check whether there is a "3C" 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. Fake and shoddy wire and cable are often "three no products", but there are also ambiguous signs of origin, such as made in China, a province or a city in China, which is actually equivalent to the unmarked origin.

3. View the appearance

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

The conductor should have a certain luster and moderate softness, and the conductor result size should meet the requirements of national standards. Wire and cable copper core cross section, excellent copper color bright, soft color, otherwise it is defective.

5. Check the length

When purchasing, do not covet cheap prices, buy only 90m or 80m, or even no length identification of wire and cable, the length must meet the standard requirements of 100(+/-)0.5m.

What is the second test, the test is actually to take a wire and cable head repeatedly bent by hand, whatever feel soft, good fatigue strength, plastic or rubber feel elastic and no cracks on the wire and cable insulator is excellent. The main methods are:

(1). Weigh the weight

Good quality wire and cable are generally within the specified weight range. For example, the commonly used plastic insulated single strand copper core wire with a cross-sectional area of 1.5 mm2 weighs 1.8 ~ 1.9 kg per 100 m; 2.5 mm2 plastic insulated single strand copper core wire, weight of 2.8 ~ 3.0 kg per 100 m; 4.0mm2 plastic insulated single strand copper core wire, weighing 4.1 ~ 4.2kg per 100 m. Poor quality wire and cable weight is insufficient, either the length is not enough, or the wire and cable copper core impurities are too much.

(2). Test resilience

Qualified copper wire and cable copper core should be purple, shiny, soft. The shoddy copper core is purplish black, yellow or white, many impurities, poor mechanical strength, poor toughness, a little force will break, and the wire and cable are often broken. When checking, just peel off one end of the wire and cable 2 cm, and then rub a piece of white paper on the copper core slightly, if there is black material on the white paper, it means that there are more impurities in the copper core. In addition, the insulation layer of shoddy wire and cable seems to be very thick, in fact, most of it is made of recycled plastic, the product of the material is poor toughness, poor damage resistance, easy to peel and crack, a long time, the insulation will age and leakage, resulting in safety accidents.

(3) Talk about the price

Because of the low production cost of fake and shoddy wire and cable, vendors often sell at low prices under the guise of cheap and good quality, so that people are fooled.

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