How to distinguish standard high temperature line from non-standard high temperature line
Release time:
2023-05-23 14:26
The wide application of high temperature line, so that more and more bad businesses have distorted ideas, the market emerged a lot of non-standard high temperature line, relative to the standard high temperature line, non-standard high temperature line low cost, bad businesses to cheap promotion means, so that many customers deceived. Here share the common method of distinguishing standard high temperature line and non-standard high temperature line, so that customers can identify themselves.
Quickly distinguish the standard high temperature line and non-standard high temperature line mainly take physical methods: 1 weigh 2 rub 3 look. Specific operations are as follows:
1. Weigh
Good quality UL electronic wires are generally within the specified weight range. For example, the commonly used PVC insulated multi-strand copper core wire with a cross-sectional area of 0.35, each roll weighs 3.5-3.6kg; 0.85 PVC insulated multi-strand copper core wire, each roll weight of 5.3-5.40kg, etc. The weight of the poor quality wire is insufficient, either the length is not enough, or the copper core of the wire is too much impurities, and there are many empty cells in the cross-sectional area of the PVC layer of the wire skin, and the texture is uneven.
2. Identify copper
Qualified copper core UL electronic connection 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 2cm, 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 seems to be very thick, in fact, most of them are made of recycled plastic, and over time, the insulation layer will age and leak electricity.
3. Look at the manufacturer
Fake and shoddy UL electronic lines 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. Moreover, the outer packaging of the wire is not affixed with a UL blue small label issued by UL company.
How to distinguish standard high temperature line from non-standard high temperature line
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Quickly distinguish the standard high temperature line and non-standard high temperature line mainly take physical methods: 1 weigh 2 rub 3 look. Specific operations are as
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