When buying wires for decoration, the one thing we are most concerned about is the cost,and the other is the quality.The quality of the material is related to the quality of the decoration. But many people in life are the first time to decoratecan not distinguish the quality is good or bad, then decoration, how should we distinguish the quality of the wire?
1.Look at the copper core
When buying wire, let the boss give a small piece of sample wire, peel and see the copper core inside, if the copper core is bright purple, it is copper, it is very good copper core, if the copper core is bright gold, it is brass, second only to copper, if the copper core is dark, it means that there are impurities in the copper core, the quality is relatively poor.
2.Look at eccentricity
Just like the egg yolk looks perfect in the center of the protein, the wire is the same, the copper core of the wire is qualified in the center of the insulation layer, when viewing the sample wire, if the copper core is found to be biased toward the insulation skin, more and less on one side, so that the eccentricity is large, then such a wire can not be wanted, because the eccentricity of the wire is large in the use of the wire is easy to be broken down by the current.
3.Try bending
Let the boss take a piece of wire repeatedly bent by hand, good quality wire flexibility is good, repeatedly bending the outer insulation layer will not have traces, poor quality wire looks at the inner core is very sufficient, in fact, mostly made of recycled plastic, repeatedly bending place will turn white, even broken skin.
4.Test the burn
Good quality wire insulation is with a certain flame retardant, lit with a lighter, after leaving the open flame is extinguished within 5 to 8 seconds, and there is no thick black smoke and very pungent taste that the flame retardant effect is good, if it has been burning after leaving the open flame and black smoke and very pungent taste, indicating that the quality of the wire is very poor.
5.Look at identification and stamps
The national standard requires the production of each roll of wire to have a certificate of qualification, and the wire body and certificate are to write the product name, implementation standards and other details. If it is found that the printing on the thread body and the certificate is not clear, and it is relatively simple, most of the products will not be very good. It should be noted that the certificate of some products is brought on the packaging, like the certificate of overview wire is printed independently on the packaging, but also with the function of scanning the source of goods,such as you buy the overview wire in A store A but the address of the scan code is B place, it needs to be vigilant about whether the products you buy are transiting goods or fake and shoddy products. If it is confirmed that fake and shoddy products are bold to report, can not let fake and shoddy products run rampant.
