China's wire and cable product classification China's wire and cable product classification is divided into the following five categories according to its use。
In 1879, the American inventor T.A. Edison wrapped jute around a copper rod and put it into the iron pipe, and then filled the asphalt mixture to make a cable.
Most of the wire and cable products are products with the same cross-section (cross-section) shape (ignoring the error caused by manufacturing) and long strips, which are used as features in the system or equipment to form lines or coils.
The complete naming of wires and cables is often complicated, so people sometimes use a simple name (usually a category name) in combination with the model specification instead of the full name, such as "low voltage cable" for all plastic insulated power of 0.6/1kV class.
Shielding layer For the purpose of uniform conductive core and insulated electric field, medium and high voltage power cables of 6kV and above generally have a conductor shielding layer and an insulating shielding layer, and some low voltage cables are not provided with a shielding layer.
The copper core yellow is reddish, indicating that the copper used is of good quality, while the yellowish white is the reaction of low quality copper.
