JZD Wire & Cable Factory
More Than 20 Years Experience
More Than 20 Years Experience
Author: Joey Wan 
November 08,2021
Are you struggling to find a manufacturer and hope it can provide you good quality building wire? If yes, this article definitelywill help you know those specific strategies.
The flexible cipper building wire is BVR single-core multi-strand flexible wire, and the hard wire is BV single-core single-strand hard wire. Both do not have who good who bad distinction, only who suits which position is different, according to the position that decorates will choose them respectively.
For the family decoration, flexible copper building wire is better or hard wire ?
Theoretically, is the hard wire is more appropriate, at ordinary times we can pay attention to observe, most of the joint burned out at home is not a multi-strand flexible copper building wire? Professional electricians master analysis: more shares every piece of copper wire cord is too thin, easy to cause damage and oxidation, electricity through actual allocation proportion of each copper uneven, also uneven heat conduction, the damaged part of the copper wire first, and then conductive ability to increase resistance, causes more heat has further, finally burned out.
And at present, because the flexible wire is a multi-wire metal, so the production is more complex, high cost, and then the price has no obvious advantage, so the hard wire is better. So the hard wire that the family uses electric wire had better be to use single unit is much better in reliability and durability, and the advantage of hard line is to wear tube and installation more convenient, the price is cheaper than flexible copper building wire, construction personnel is also more willing to wear hard cable, because this hard wire construction rises more convenient also.
Home decoration is generally applicable to hard wire, for the following reasons:
1. strong security
The standard method of use of flexible wire is to iron tin or press the nose of the joint when wiring, otherwise a multi-strand line may become warped and be connected with the conductor next to it, causing danger. When home decoration, tin ironing will increase the cost, second, waste time, and even some users do not know that they need to iron tin, so that they have hidden security risks.
2. Electrical conductivity
Normally, hard and flexible copper building wires of the same diameter have the same conductivity. But when we are wiring, flexible wire is often easy to accidentally break a few copper wire, and even some novice electrician or user personal replacement socket, often peeling line skin with peeling half of the copper wire down. In this way, it affects the capacity of the wire, but also accelerates the oxidation of the internal copper wire. In contrast, a single hard wire with a thick diameter does not exist.
3. Convenience
When replacing the wire, although the hard wire is more laborious, it can ensure that the complete line is pulled out smoothly from the threading tube. If necessary, it can also replace the threading steel wire and pull the new line together. Flexible wire is easy to break after aging, and the wire is likely to be pulled off accidentally when changing the wire.
4. Economy
It is said that the cord is a multi-strand wire, and the difficulty of the multi-strand wire in the production process is much higher than that of the single-strand copper building wire, so the price of the cord is also higher than that of the hard wire. And the hard wire can be recycled after waste, and the flexible wire does not have this feature. Moreover, soft wire inside the single copper wire is thinner, the service life is not as long as hard wire.
Where is it better to use cord?
Flexible copper building wire compared with hard wire, the biggest characteristic is to avoid the skin effect in the hard wire (there is no need to know what is the skin effect). Because of this, cords are often used for information transmission or secondary control, mainly for the transmission of signals.
Advantages: flexible copper building wire, more suitable for turning pipe, easy to install and move
1. The biggest difference between BV wire and BVR wire is that BV wire is single strand hard copper wire; BVR wire is multi-ply flexible copper building wire, that is, increase the number of conductor roots and reduce the diameter of single conductor, and the diameter of single conductor is less than 1 mm.
2. In terms of production process, when BVR is drawing, its single strand is relatively thin, and its requirements for process will be higher.
3. In the current, because of the "skin effect" of the conductor, the same cross-sectional area of the wire, multi-strand than single strand higher current-carrying capacity.
4. Therefore, the BVR wire with the same cross-sectional area is about 15%-20% more expensive than the BV copper building wire.
Tips To Distinguish The Manufacturer
1. IEC certificate is the first factor you need emphasize. IEC represtents the most widely standards for copper building wire, once your supplier has this certificate, you don't need worry about the qualification for manufacturing the product you are looking for.
2. Export Experiences are also one aspect you need consider. Your supplier export experiences decide whether you will have smooth trading process, you can't imagine that it will cause how many troubles if your supplier has no any relative experiences.
3. VED certificate also is a authoritative things you can refer. VED is a Germany certificated, if your supplier has this certificate, you could add some trust on the products your supplier could produces.
4. The annual sale amount. If your supplier has a bigger sale amount annually, this will help you know this supplier more and more quickly, in many cases, cooperating with a company with bigger sake amount is a more safer decide.
5. Whether your supplier had sold their copper building wire to your region is the most important point. In the international trade, if your supplier had exported the products you are looking for to your region is the important factor needed to consider.
6. At last , refer a external ponit, for copper building wire procurement, either you have a own professional examining goods team or you need hire a authoritative and trustful inspect goods company. Final inspection on the goods you will get is the very important things, that will prevent you from getting the bad quality goods.
Believe you have known those tips well if you have reached at here, any other problems about copper building wire, don't hesitate to contact us JZD Wire&Cable.
