The People's Republic of China Industry Standard Electric Industry Safety Work Regulations DL 408-91: 1.4 Electrical equipment is divided into high voltage and low voltage: high voltage: equipment with a ground voltage of 250V or more; low voltage: equipment with a ground voltage of 250V and below. ... read more
Generally, electric wires and cables are insulated and sheathed with plastic and rubber. These materials are all conventional materials, have abundant sources, can meet mass production, and the cost is relatively low. But for some special industries such as petrochemical, steel, aerospace, shipbuild... read more
The difference between wire and cable Wires are generally used for conductive metal wires that carry current. There are various forms such as solid, stranded or foil woven. According to the insulation status, it is divided into two categories: bare wires and insulated wires. A cable is an insulated ... read more
1. Unshielded twisted pair cables are widely used in Ethernet. As the name suggests, the twisted pair in the cable is unshielded. Eight individual copper wires (22 or 24 gauge) are twisted into four pairs to limit signal damage caused by electromagnetic interference. UTP cables must comply with the ... read more
1. Under the eaves. The standard LAN cable can be used only when the cable is not directly exposed to sunlight or ultra-high temperature. It is recommended to use pipes. 2. The exterior wall. Avoid direct sunlight on the wall and man-made damage. 3. In the pipeline (plastic or metal). If in the pipe... read more