English
عربى
There are many power cords in the world, but the power cords around the world are very different. Take the power cords of replica Rolex watches in Europe and America, there are many different places. For example, the United States uses 110V low voltage, In Europe, 220V high voltage is used, and the wire used in the United States has a thicker copper cross-section than ordinary wires, because the voltage and current of American-standard products are lower than those of European-standard products, and the required copper cross-section is stricter.
For example: H05V-U is the wire of the European harmonized (meaning of consistency) standard, the meaning of H is the meaning of the first letter of the English word of the European unified model, 05 means 300/500V, and only one V means that the insulation is PVC Material (70 degrees), if there are two Vs, the sheath material is PVC. - No meaning, U means single-strand conductor, which is solid in English. As for SJT, it is the American wire gauge of UL62 standard, SJ =Service Junior means small service, T=Thermoplastic thermoplastic means. That is to say, this wire is not a wire used alone, but a small cable that "serves" other electrical products.
As for the number of squares and wire specifications, generally European standards, including Chinese standards, the specifications of the wires are usually expressed in specifications such as 0.5 �. The number of squares is very small. In North America, the conductor is usually represented by the AWG specification. 18AWG is just 0.84MM^2. According to the UL62-----2006 version of the standard, 18AWG/3C wire, a single wire The core wire should be 0.824 square millimeters. The American standard wires are represented by AWG. The European standard wires will be recorded by square. The European standard and the American standard are two different systems, and the way of checking is also very different. Most of the national standards are similar to European standards.
