Master Gu is a worker who is engaged in water and electricity decoration all the year round. Recently, many people have found him and called the home circuit, and a high-power electrical appliance is short-circuited. "On such a hot day, even air conditioners can't open." After some inspections, he discovered the tricks inside: Originally, this was mostly because the wires used were non-GB or poor quality wires, and the quality was not up to the standard.
Then what exactly is the national standard line? What is the difference between the national standard line and the non-standard line? Gu introduced the master line, the national standard line is produced in accordance with national standards for the use of wire, the current home improvement is the most commonly used a 2.5 (2.5 square cross section Millimeters of BV plastic wire) wires.
The difference between the non-marking line and the national standard line is “mainly the copper core is finer and some copper material is omitted to create a price advantageâ€, and some manufacturers will thicken the plastic wrapped in the copper core to ensure the “true†appearance. . In addition, the length of non-standard lines is also greatly insufficient. Many of the national standard lines can reach the fixed length indicated on the label. Taking a 100-meter line as an example, the error is controlled within ±0.5 meters. It is difficult to say that it is not the national line, and even the line marked 100 meters is actually only 70 meters.
Master Gu also told reporters that in addition to national standards and non-standards in the market, there is still a "factory standard." The factory standard line refers to the regular manufacturers, but does not meet the strict national standard line standards, but through internal relations with the national standard line certification and anti-counterfeit labels, customers are extremely difficult to distinguish. There are also many differences between the purchase price of the factory standard and the national standard, and many shopkeepers will vowed to the customer that they are selling an absolutely qualified national standard line, but they actually substitute the factory marking line with a lower purchase price. Since there is almost no difference in the appearance of the two, there is no major problem in the short-term use of the factory marking line, so many customers are unaware after buying the defective product.
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