Analysis of the real difference between national standard cables and non-standard cables

A sensitive topic that cable practitioners are very familiar with in recent years: it is too difficult to sell national standard cables. Everyone claims that their cables are national standard cables, and non-standard cables also claim that their cables are national standard cables. As a result, they have an advantage in quoting prices, which once made cable market practitioners very helpless.

What is the real difference between national standard cables and non-standard cables? You can learn more about it from the following points:

1. Calculate the cost by the weight of copper. It worked at first, but the national standard cable ignored a problem: your copper is oxygen-free, but the non-standard cable is not. When the weight of the scrap copper and the oxygen-free cable is the same, the price of the scrap copper and the oxygen-free cable differs by 10%. Therefore, the national standard cable failed after much effort in promotion. The difference between the national standard cable and the non-standard cable is 10%.

2. Cutting corners on auxiliary materials. The country has increased resistance inspections, and at the same time has increased inspections on conventional products. Non-standard cables have begun to work on auxiliary materials. If copper accounts for 70% of the cost of the cable, then the cost of auxiliary materials accounts for about 20%. If the material is 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 auxiliary materials.

3. Short-meter wires and cables. In fact, short-meter wires have always existed, and this is the most difficult to check. In the past, it was often found in BV, such as 95-meter wires, 98-meter wires, or 90-meter wires. Now, because the inspection items have increased and all products have been inspected, non-standard wires have begun to work in this direction. I hope everyone will pay attention to this. If 1 meter is reduced from 100 meters, 1% of the profit will be obtained.

4. Thick at both ends and thin in the middle. In other words, the cables at both ends are of national standard, and the middle part is non-standard, thus saving a lot of costs, and the corresponding cable price will be much lower. You can't cut the cable from the middle when testing it, so the leak was drilled in this way.

At present, the most worrying thing is the fourth one. As long as the user unit and the cable manufacturer conceal it together, there is no way to check it. Do we have to dig the cable out of the ground and measure it? This is also the reason why the prices are so different even though they are both called "national standards".