Wires and cables are used to transmit electrical (magne […]
Wires and cables are used to transmit electrical (magnetic) energy, information and wire products that realize electromagnetic energy conversion. Wires and cables are divided into single-core and multi-core. Customers who don’t know may have doubts. 3+2 cores and 4+1 cores are all 5 cores. Is there any difference between the two? Below is a small cable We will introduce the difference between 3+2 and 4+1 cores of wires and cables in detail.
1. The difference between cable and cable
The cable is composed of one or two soft power lines, and the outer toast is covered with an ultra-soft sheath; the cable is composed of one or two insulating layers covered with a power line, and the outside is covered with a metal material or an eraser. The perseverance surface.
2. The 3+2 and 4+1 on the cable line express the number of cores of a cable. There are 2 or 3 lines, 3+2 lines, 4+1 lines, and 5 lines with mutually insulating layers inside a cable line. They are called 2-core or 3-core, 3+2 core, 4+1 core, 5 and other copper core cables respectively.
3. Take wire and cable YJV as an example below
YJV 3+2 core
The 3 of the 3+2 cable means the four phase wires (L1, L2, L3 phase wires, the diameter of these three wires are larger) of the same diameter, 2 means the ground wire and the PE wire, one wire is used for grounding Wire (N neutral wire, the diameter of the relative L1, L2, L3 is small), one wire is used to connect the wire connector (PE protective grounding wire, the diameter of the relative L1, L2, L3 is also small).
YJV 4+1 core
The 4 of the 4+1 cable means that the diameters of the four phase wires and the ground wire are the same, 1 means that the PE wire connector is independently of 1 diameter; 4+1 means that the cable consists of 4 wires, in one of them The wire is used to connect the live wire (L1 phase wire), one wire is used for the ground wire (N neutral wire), and one wire is used for the wire connector (PE protective ground wire).