How to identify the authenticity of wires copper core wires ?

How do you distinguish between good and bad when buying wires?

Certificates; See whether the certificate is standardized; See whether there is the factory name, factory address, inspection seal, and production date; See if there are trademarks, specifications, voltages, etc. printed on the wires. It is also necessary to look at the cross-section of the copper core of the wire, and the high-grade copper.

The color is bright and soft, and the copper core is yellow and reddish, indicating that the copper used is of good quality, while the yellow and white are a reflection of low-quality copper.

2) You can take a wire head and bend it repeatedly by hand, where it feels soft, has good fatigue strength, has a large elasticity of plastic or rubber and is insulator of the wire.

If there is no crack on it, it is a superior product. The outer plastic skin of the wire should be bright in color and fine in texture, and there should be no open flame when lit with a lighter.

3) Intercept a section of the insulation layer to see if its core is located in the middle of the insulation layer. Not centered is due to the process is not high caused by the core phenomenon, in the use of small power can also be peaceful, once the power consumption, the thinner side is likely to be broken down by the current.

4) Be sure to see if the length and core thickness have been done. In the relevant standards, it is stipulated that the error of the length of the wire cannot exceed 5%, and the cross-section wire diameter cannot be exceeded, but there are a large number of short catties in the length and fraud on the cross-section (such as indicating that the cross-section is a square millimeter.

of the line, in fact, only 2 square millimeters).

The method of judging the authenticity of copper wire can be judged by using the different melting points of the fake copper wire of copper and copper-clad aluminum, and the method of fire can be used to judge that copper-clad aluminum will melt quickly with a lighter, and pure copper will become red without melting, so as to distinguish pure copper from copper-clad aluminum.

1 magnet, 2 cut a section, look at the color of the line, 3 look at the weight.

People build new houses, decorate houses need to buy copper wire, now the market is mixed with many people to buy fake copper wire, the following is a few ways to make you quickly identify inferior copper wire, tools.

Lighters, weighing, and your discerning eyes.

Method. Look at the trademark, manufacturer and other information, regular manufacturers have registered trademarks recognized by the state, and there is a R logo in the circle in the upper right corner, and three C certification.

Please click Enter a description.

Looking at the outer skin, the regular copper single-core wire and multi-core wire insulation skin are very uniform, the copper wire is in the center of the insulation skin, and the inferior one is uneven, and the conductor is on the side.

Please click Enter a description.

Look at the copper color, peel off the insulating skin, look at the color, the good copper wire is purple-red, shiny, soft to the touch, the inferior wire is yellow or dark, the copper strip is stiff and impurities, and it is <>

Please click Enter a description.

Take the fire, for the multi-core flexible wire, a lot of copper-clad aluminum, the appearance of this wire is the same as the copper wire, the touch is also soft, ordinary people can not distinguish at all, then the lighter comes in handy, peel off the insulating skin and burn on the flame, the appearance of the real copper wire remains unchanged, the aluminum quickly melts, into a round small aluminum droplet, very obvious.

Please click Enter a description.

Weighing, the appearance has been checked, on the weighing, the national standard of wire diameter and weight hardware manual, here is not listed one by one, after the above steps, you can have a sharp eye, you will be able to buy qualified wire.

Judging from the color of copper, copper is divided into brass and red copper. Suck it up with a magnet close to the copper wire, and you'll know. If it can be absorbed, it means that it is fake, and the iron content is relatively high, and if it is not absorbed, it means that it is a real copper wire.

How to identify copper wire.

Here's how to identify copper wires:

1. A good copper wire is yellow-brown, relatively soft, the wire is not too thin, and it is folded by hand after the strands are combined, and the elasticity is small.

2. There are many dopings in the bad copper wire, and it is as hard as iron wire when folded by hand.

3. The aluminum wire is wrapped with a layer of copper water, and the refurbished wire is jet black, and it will be broken when the wire is stretched by hand.

The most common identification method is to identify by the naked eye, the lacquered can be scratched open to distinguish the patent leather, the copper is not magnetic, and some can also be added to the identification with magnets.

It must be based on physical identification.

How to tell if the wire is a real copper wire:

Burn with fire. There is a mark on the insulating skin of the wire.

Look at the copper. Length.

Try it with your hands.

The specific way to distinguish whether the wire is a real copper wire:

Burn with fire. Fake wires burn quickly with fire, with open flames and thick smoke. True wires burn slowly, with a small amount of smoke or no smoke, and no open flames.

There is a mark on the insulating skin of the wire. Such as wire specifications and models, 3C certification, etc. and clear handwriting, generally can not be washed off, but also can not be wiped off, if you want to wash off its handwriting must be washed off with banana water, there is a certificate in the wire coil, the certificate has the manufacturer's address **, 3C logo, quality system certification, voltage, wire model specifications, etc. Whereas on false lines there is no or is missing.

Look at the copper. The higher the brightness of the copper, the better the copper, and the luminosity is uniform, the Xunhuai orange is shiny, there is no sense of hierarchy, and the qualified copper core wire and copper core should be purple red, shiny, and soft to the touch. If you can cut off a small piece of plastic skin, carefully check the copper wire inside and touch the top of the copper wire with your palm, the feeling should be flat and no stinging, and the feel is softer, while the fake and inferior copper core copper core copper core is purple-black, yellow or white, with many impurities, poor mechanical strength, poor toughness, and a little force will be broken, and there is often a broken wire in the wire.

When checking, you only need to peel off the wire at one end by 2cm, and then use a piece of white paper to rub it slightly on the copper core, if there is a black substance on the white paper, it means that there are more impurities in the copper core. In addition, the insulation layer of shoddy wires may seem to be very thick, but in fact most of them are made of recycled plastic, and over time, the insulation layer will deteriorate and leak.

Length. The state does not enforce the need to beat rice, but there are many manufacturers who have also beaten rice, and the rice is not necessarily the national standard, but the general national standard generally does not beat rice. Non-standard rice is just a means, and the length of the national standard line is generally 100 meters.

To try. You can take a wire head and bend it repeatedly by hand, where it feels soft, has good fatigue strength, plastic or rubber feels elastic and has no cracks on the wire insulator.

Electricity safety is an aspect that many people are concerned about. In home decoration, the purchase of wires also plays a very important role in ensuring the safety of electricity. So, in the face of uneven wires on the market, how can we distinguish the real from the fake?

The copper core material of high-quality wire is made of high-quality copper with high purity and good conductivity as the copper core raw material, which has a very good metallic luster, and the metallic luster of the copper core of inferior wire is very poor, which can be clearly distinguished by the naked eye. The copper core material of inferior wires has a high content of impurities, large resistance, poor conductivity, large loss of electric energy, serious heating of wires, unable to ensure the safety of use, easy to cause short circuit damage to household appliances, and more serious is that inferior wires are very easy to cause disasters, seriously endangering our lives and property safety.

The cross-sectional area of the copper core of high-quality wire is produced in strict accordance with the national electrical standards to ensure the safety of its use under the rated current intensity and rated voltage. In order to reduce the production cost of inferior wires, the cross-sectional area of its copper core cannot meet the national electrical standards, and it cannot reach the rated current intensity and rated voltage indicated in actual use. Such wires are easy to cause damage to electrical circuits when you use high-power electrical appliances.

You can get it for free

Weighing instructions: *** wires, generally within the specified weight range. For example, the commonly used plastic insulated single-strand copper core wire with a cross-sectional area is weighted per 100m; plastic insulated single-strand copper core wire, weighing 3 per 100m; of plastic absolutely.

To see: to see whether there is a quality system certificate; See whether the certificate is standardized; See whether there is a factory name, a factory address, a sacred mountain, an inspection seal, and a production date; See if there are trademarks, specifications, voltages, etc. printed on the wires. It is also necessary to look at the cross-section of the copper core of the wire, and the color of the copper is bright and soft, otherwise it is a defective product.

First, it is necessary to see whether there is a quality system certification; See whether the certificate is standardized; See whether there is a factory name, factory address, inspection virtual core section, production date; See if there are trademarks, specifications, voltages, etc. printed on the wire. The family also has to look at the cross-section of the copper core of the wire, which is an excellent product.