How to identify the advantages and disadvantages of home improvement copper wire?

1.Look at the appearance of the wires.

This includes the packaging of the wire, as well as the appearance of the wire insulation.

The wire is packaged with all the parameters of the wire, the certificate of conformity and the standards implemented. Then look at the insulation logo of the wire, there should be a clear mark on the outside of the insulation layer, including the manufacturer's marking, the model of the wire diameter and so on.

All wires with vague logos are certainly not a qualified product.

2.Look at the wire diameter of the wire.

Check the copper core of the wire, which is the core. Because there are actually two points in the bad of a wire, one is the insulation layer, and the other is the core of the wire.

We can strip the wire out a section until the copper inside is exposed. If we find that this copper wire is purple, the quality is good; In addition, we can also bend the copper wire with our hands, if it feels soft, it means that it is a good wire. On the other hand, we found that the copper wire was yellow, then it was brass, and there were other impurities in it, and the quality was not good;

In addition, when we bend the copper wire, if we feel that the copper wire is very hard, then it means that the wire is an inferior wire.

3.Detect the resistance performance.

This kind of wire is required to be flame retardant, the fire performance is very high, take a piece of wire, and then we use a lighter to light it, and then extinguish the lighter. At this time, let's observe whether the insulation layer of this wire will be automatically extinguished, if it is extinguished, then it means that it is flame retardant and qualified; If it is not extinguished, then it is a substandard product.

The simplest and most intuitive way to identify is to strip the wire, if it is particularly difficult to peel the wire, it must be a good wire, and the quality of the particularly easy peel is very average.

The aluminum wire is white and the copper wire is yellow. The hardness of copper wire is much higher than that of aluminum wire. The regular market will not sell copper-plated wire, and the quality of the non-standard line is much lower than that of the national standard line.

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.

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't distinguish at all, then the lighter comes in handy, peel off the insulating skin and burn it on the flame, the appearance of the real copper wire remains unchanged, the aluminum quickly melts, and becomes a round small aluminum droplet, which is very obvious and sensitive.

How to choose the cord for home decoration? How to distinguish the advantages and disadvantages of wires? Distinguish according to the total weight; For better cable products, the net weight is more uniform, that is, in a fixed and immovable category.

If the line section is flat, the net weight of 100 meters is about about kilograms. The total weight of 100 meters is about up and down. For example, if the cable is 4 flat, the total weight of 100 meters is about kilograms, on the contrary, if the net weight of the cable is not enough, indicating that the length is not enough, there may be too much residue.

.Observe the quality of electrical conductors; Metal conductors are the key cost of cables, so many manufacturers are shoddy from these aspects. A better cable is a better copper cable, which is dark purple and bright and soft to the touch.

On the contrary, if the core of the wire is black and purple, it is dark, indicating that there is a lot of residue, the compressive strength is not enough, and it is easy to break if it is brokenObserve the product information and then you can identify it on the outer packaging of the cable, the outer packaging of the better cable is sound, and the outer packaging has detailed product information. Such as the name of the manufacturer, the date of manufacture, the product model, the registered trademark and the working voltage and other information, and the handwriting is clear.

On the contrary, if the outer packaging of the cable is casual, and the product information; less, judged to be a fake and shoddy cable.

.Observe the eccentricity of the cable; You can extract a section of the cable to see if the core is vertically centered, and the core of the better cable is vertically centered, on the contrary, if the cable is eccentric, it indicates that the level of production and manufacturing is low, and once the power consumption is large, the thin surface is easy to penetrate. the length of the cable and the size of the core; Finally, it is distinguished from the length of the cable and the size of the cable diameter.

The length of the cable and the size of the cable diameter are all in line with the national industry standards. The length difference shall not exceed 2%, and the cross-sectional deviation shall not exceed. On the contrary, if the outer packaging of the cable indicates 100 meters, square meters, and the specific and accurate measurement is only 90 meters, 2 square meters, it indicates that it is a fake and shoddy cable.

Look at the appearance of the cable, the better cable is packaged in a coil, and the appearance also has a certificate of conformity and specifications. Accurate measurement, use vernier calipers to measure the core, such as a flat cable wire, with a core aperture of . Flame retardant grade, take the lighter to ignite the cable, if the flame will automatically go out, indicating that the cable sheath is up to standard, on the contrary, it is not passing.

The quality of the core is that the copper wire of the better cable is dark purple and the material is soft. On the contrary, the copper wire of the cable is black and purple, which is easy to break.

It is recommended to purchase according to the principles of health and environmental protection, safety and fire prevention, energy saving and application, and comprehensively consider the brand, model specification, quantity, performance, color and other factors.

One. 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.

Two. There are logos on the insulating skin of the wire, such as wire specifications and models, 3C certification, etc., and the handwriting is clear, the general water can not be washed off, and it can not be wiped off, if you want to wash off its handwriting, you must use banana water to wash it off, there is a certificate of conformity in the coil, and 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.

Three. Look at the copper, the higher the brightness of the copper, the better, and the luminosity is uniform, shiny, no sense of hierarchy, the qualified copper core wire copper core should be purple red, shiny, soft feel. If you can cut off a small piece of plastic skin, carefully check the copper wire inside, touch the top of the copper wire with the palm of your hand, the feeling should be flat and no stinging, and the feel is softer, while the fake 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.

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

Five. 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 there is no crack on the wire insulator is the best product.

What you mean can be understood as it is better to use a copper core soft wire, or a copper core hard wire, if it is a dark wire or a fixed one, it is best to use a hard wire, and if it is a mobile one, it is best to use a soft wire.

It is better to use copper core wire, and it is safer to use large diameter for air conditioners and kitchens.

Generally use soft wire, hard wire is used in engineering, when you buy wire, the person who sells the wire will tell you, if the household power is large, it is enough to use 4 square meters, and the smaller copper wire is OK.

Choose the national standard line, the surface is shiny, not easy to oxidize, the material is not hard, not easy to break, the thickness of the insulation layer is uniform, and it is flame retardant.

There are a lot of fake wires on the market, it is easy to buy poor ones if you don't pay attention to them when you decorate, you lose less money when you buy fake wires, and the most terrifying thing is to affect the circuits at home, which may cause the safety of life and property, and warn you to be careful when buying wires! Nowadays, many people will hand these over to the renovation company, but can you make sure that the renovation company has a conscience? Or do you have the intention?

No! I advise you to check the wires yourself.

When I was decorating my home, I was very confident in the decoration company, and I handed over everything to them, and then when I went to supervise the work with my friends, my friends saw the wires in my house, questioned the decoration master in person, and told me to quickly change a batch of good wires, otherwise the consequences would be unimaginable, I was frightened, and immediately called ** to the person in charge, and the contract regulations required, and argued with the decoration company before agreeing to change a batch of good wires. In fact, it is very simple to check the quality of the wire, as long as you take it apart, you can see how good the wire you use is.

To see the quality of the copper wire, first of all, you have to peel off the plastic skin to see if the copper wire inside is purple red, whether the color is good, and the texture is soft, this is a good wire. But if the copper wire is purple-black, the luster is dull, and it will break if it is broken, it goes without saying that it is some poor quality copper wire, so you can't ask for it.

There is also to look at the insulating sleeve, high-quality wires will have a kind of plastic skin on the outside, because if the copper wire is broken, it will also be protected from leakage, as long as you stretch the insulating sleeve, if you find that the insulating sleeve is white or broken, it means that the quality of such an insulating sleeve is very poor.

People in the general industry know that the wire must have CCC verification, which is a national compulsory product certification, these codes can be logged in to the national quality inspection ** to check the authenticity, so you must not buy products without 3C certification, the most important thing for electricity is safety.

If there is no testing equipment, you can fold the conductor by hand to see whether it is soft, the conductor is bright and oxidation-free, and whether the toughness of the insulation and sheath is excellent. Use a ruler to measure whether the diameter of the conductor is up to standard, whether the insulation is eccentric, and whether the sheath is smooth and flat