Identify the quality of the cable can be started from a few simple ways:

　　1, the appearance of the cable uniform and supple (high quality cable surface is very uniform and supple);

　　2, the cable jacket, insulated tear strength of the prison excellent (of course users need easy to tear the exception);

　　3, the conductor brightness, softness, uniform diameter are excellent are of high quality;

　　4, the center of the conductor in the insulation, no eccentric belongs to better;

　　5, shielding density, high anti-interference is good;

　　6, the corresponding installation of engineering-type cable Tight tight (wear tube skin wrinkle-free, good overall)