Suggestions from printer manufacturers: how to choose wires and cables correctly

In 2019, the Yantai City Product Quality Supervision and Inspection Institute conducted random inspections on the quality of wire and cable products sold on the market. The results of the random inspection showed that individual wire and cable products had conductor resistance, insulation thickness and other items that did not meet the requirements of relevant standards. Cable and wire products have a close relationship with the lives of consumers. Their quality and safety directly affect the personal and property safety of consumers. It is very important to purchase wires and cables correctly. The staff of the Quality Inspection Institute remind consumers that they should pay attention to the following points when purchasing wires and cables:

First, check the 'CCC' certification mark or production license mark. All production enterprises must obtain the 'CCC' certification or industrial product production license of China's compulsory certification, and the 'CCC' certification mark or production license mark should be printed on the certificate or product.

Second, look at the inspection report. Wire and cable, as a product that affects the safety of people and property, has been listed as the focus of government supervision and inspection, and regular manufacturers are subject to inspection by the supervision department on a periodic basis. Therefore, the seller should be able to provide the inspection report of the quality inspection department, otherwise, the quality of the wire and cable products lacks basis.

Third, look at the packaging. All formal enterprises that produce products that meet national standards pay attention to the packaging of their wires and cables. When purchasing, pay attention to the exquisite packaging, clear printing, complete model specifications, factory name, factory address, and product standards.

Fourth, look at the appearance. The appearance of the product is smooth and round, and the color is even. Wire and cable companies whose products meet the requirements of national standards, in order to improve product quality and ensure that products meet the requirements of national standards, strictly control the purchase of raw materials, production equipment, production technology, etc., and the appearance of the produced wire and cable products meets the standard requirements, and is smooth and round. , The color is uniform, and the fake and inferior products are rough and dull in appearance.

Fifth, look at the conductor. The conductor is shiny, and the DC resistance and conductor structure size meet the requirements of national standards. Wire and cable products that meet the requirements of national standards, whether they are aluminum conductors or copper conductors, are relatively bright and free of oil stains. Therefore, the DC resistance of the conductors fully meets the national standards, has good conductivity and high safety.

Sixth, measure the length of wires and cables. Length is the main item that distinguishes between conforming to national standard requirements and counterfeit and inferior products. When buying, don't be greedy for cheap, and buy wires and cables whose actual meters are lower than their nominal meters. The length must be consistent with the nominal number of meters, and the product standard stipulates an allowable error of ±0.5 meters per 100 meters.

For the safety of consumers, please be sure to purchase high-quality wires and cables! Reliable quality wires and cables will have clear and complete markings. The regular brand will print company name, logo number, quality mark, product batch number, product specification, model, date, accurate meter, power supply, voltage, material description, usage requirements, etc.

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