The wires used for decoration look like coils and circles, and the colors are dazzling. Many people don't know what is good for wires, how to choose, how to see the advantages and disadvantages?
Although these problems do not need to be fully familiar to our owners, we still need to have a basic understanding of the materials when we hand over the house to the renovation company.
Today, let's take a look at what kind of wire to choose when decorating, how to choose, and what problems need to be paid attention to.
Which kind of decoration wire is used?
There are many types of wires, such as BV wire (hard wire), BVR wire (multi-strand flexible wire), RVV wire (copper core cable), and so on. However, at present, BV lines are used for strong wires in our homes, and RVV lines are used for weak wires, such as closed lines, network cables, telephone lines, audio lines, etc.
Why do wires come in so many colors?
The different colors of the wires are not only different in the use scenarios and functions, but also because they are distinguished by different colors, which is safer.
According to the national standard, different cables use different colors, mainly to distinguish the phase wire, neutral wire, and protective ground wire in the wire, so as to reduce the possibility of wrong line connection.
With different colors, workers can better distinguish, construction will not be confused, and it is also convenient for future maintenance, at a glance, know which line is connected where, but also for the safety of people.
How to choose the right and qualified wire?
1. Look at the insulating rubber
A good wire sheath has good ductility, you can take a wire head to bend repeatedly by hand when buying, if the hand feels soft, the bending strength is good, the plastic or rubber feels elastic, the wire insulator has no cracks, and the lighter is lit without open flame is a better wire.
2. Look at the size
The error of wire length shall not exceed 2%, and the cross-section wire diameter shall not exceed 0.02%. It is recommended that you must buy from regular channels, and try to buy big brands with good quality, and the size error is generally very small.
3. Look at the wire core
Generally, the core copper core is the majority, and the qualified copper core should be purple-red, shiny, and soft to the touch.
Moreover, the core should be in the middle of the insulation layer, do not be biased, otherwise once the power consumption is large, the thinner side is likely to be broken down by the current, which is unsafe.
4. Look at the weight
Like tiles, wire weight also reflects quality. Generally speaking, the weight of the plastic insulated single-strand copper core wire with a cross-sectional area of 1.5mm is 1.8~1.9 kg per 100 m, the weight of 2.5mm is 2.8~3 kg per 100 m, and the weight of 4.0mm is 4.1~4.2 kg per 100 m.
5. Look at the certification standards
The common standards for home improvement wires are national standards, industry standards, local standards, and enterprise standards, and the national standard can be said to be the minimum standard for products, which is the standard that all wires must meet, and it is also the most common and commonly used.
When buying wires, you must see whether there is a national "CCC certification" and production license number.
In addition, there are also some wires that say that they are imported "European standards" and "German standards", etc., so they must meet the standards of the corresponding countries, but Xiao Ai personally feels that it is difficult to determine as an owner, or the national standard is relatively easy to identify.
6. Look at the packaging
The outer packaging of the wire is a point that we ordinary people look better at, and the wire specifications and standards produced by regular enterprises are clearly printed, and there will be model specifications, factory name, factory address and other information.
If the packaging is blurry, or the outer packaging is tattered and old, try to avoid buying it. Xiaoai suggested that you can use the way of scanning code identification to query, and many big-name wires have anti-counterfeiting codes.
Little Love Tips:
The color and use of the same home decoration wire should be consistent, and the red and blue lines should not be used differently. The unification is also to facilitate the identification and subsequent maintenance of the line.
Of course, decoration is a major event or to find a reliable decoration company before decoration, only to have a more reliable plumber, do not look for a small workshop, the quality of workers is uneven, I don't know whether it is professional or not, and the operation is uncontrollable and uncheckable.
For our safety and living experience, Xiaoai suggests that you hand over the house to a more professional decoration company, the quality and safety are reliable, and the owner can be more worry-free.