When we buy network cables, including when we communicate with customers, we will ask what standard network cables we want, non-standard, national standard, security test, test, Fluke test, channel test, link test and so on.

Different standards represent different production processes, different quality, different prices, different technical levels, even the same standard also has the difference between good or bad data, some businesses and manufacturers will deliberately confuse the standard, such as the front said copper wrap copper deliberately with all copper to summarize, the wire diameter of 0.5mm is called national standard, A 300-meter resistance of less than 30 ohms is called an overtest.

In fact all of these are not the correct way of saying, in fact, the real national standard, test, fluke test is through the fluke tester in standards, this is the result of multiple data together, not just standard wire diameter, resistance to standard that simple, because of different standards to meet different application requirements, representing different craft, different price. try