A sensitive topic that cable practitioners have been familiar with in recent years is that selling national standards is too difficult. They say that their cables are national standards, and non-standard ones also say that they are national standards. As a result, they have an advantage in quoting, which has made cable market practitioners feel helpless;
What is the real difference between national standard cables and non-standard cables? You can have a detailed understanding from the following points:
1. Calculate the cost based on the weight of copper. At the beginning, it worked, but those who made the national standard overlooked a problem. Your copper is an oxygen free rod, while non-standard ones are not. When the weight of waste copper and oxygen free rods is the same, the price difference between waste copper and oxygen free rods is 10%. So the promotion of national standard cables with great effort failed, with a 10% difference in minimum guarantee between national standard and non-standard cables.
2. Cut corners on auxiliary materials. The country has increased resistance inspections and also strengthened inspections of conventional products. Non standard cables have begun to focus on auxiliary materials. If copper accounts for 70% of the cost of cables, then the auxiliary material cost accounts for about 20%, which is the cost of these 20%. If the materials are slightly inferior, the price can differ by 5% from the national standard. As you can see, many cables that have been exposed recently have problems with accessories.
3. Short meters of wires to short meters of cables. In fact, the issue of short rice has always existed, and it is the most difficult to investigate. Previously, it was common on BV, such as 95-meter, 98-meter, or 90-meter wires. Now, due to the increase in inspection items, the products being inspected have all been included, so non-standard products are starting to work in this direction again. I hope everyone's attention is drawn. A reduction of 1 meter for 100 meters has resulted in a 1% profit.
4. Both sides are thick and the middle is thin. That is to say, the cables at both ends are national standards, while the middle part is non-standard, which saves a lot of costs and correspondingly lowers the price of the cables. You can't cut the cable from the middle, so the leak was drilled like this.
Currently, the fourth concern is that as long as the user and cable production enterprise conceal it together, there is no way to investigate. Do we need to dig out the cables from the ground for measurement? This is also why it is also called a "national standard", but the price difference is so significant.