Cable cores are wrapped with fine copper wire to create power cords for mobile devices. Wires and cables refer to materials used for power, communications, and related transmission purposes. There's no strict distinction between "wire" and "cable." Generally, products with a small number of cores, small diameter, and simple structure are called wires. Products without insulation are called bare wires, and all others are called cables. Wires with a larger conductor cross-sectional area (greater than 6 square millimeters) are called large wires. Smaller wires (less than or equal to 6 square millimeters) are called small wires. Insulated wires are also called cloth wires. Today, we'll focus on RVS, RVB, BVVB, and RVV cables, and their differences.
About RVS, RVB, BVVB, and RVV cables
RVS: Copper-core, PVC-insulated, twisted-pair flexible cable for connection.
R: Soft structure, V: PVC insulation, S: Twisted pair
RVB: Copper-core, PVC-insulated, flat, flexible power cable, commonly known as red-and-black cable.
R: Soft structure V: PVC insulation B: Flat
BVVB: Copper core PVC insulated, PVC sheathed flat wire.
B: Fabric wire V: PVC insulation V: PVC sheathed B: Flat
RVV: Copper core PVC insulated, PVC sheathed round flexible wire.
R: Soft structure V: PVC insulation V: PVC sheathed
Differences between RVS, RVB, BVVB, and BVVR
1. RVS and RVB
RVS is an unsheathed twisted pair wire with only an insulation layer.
RBV is an unsheathed parallel flat wire with only an insulation layer.
Both can be used for household lighting and appliance wiring.
2. RVS and BVVB
BVVB is a sheathed parallel flat wire with two layers of insulation and sheath.
RBV is an unsheathed twisted pair wire with only a single layer of insulation.
3. RVS and RVV
RVV is a round, soft-jacketed cable with an insulation layer and an outer sheath.
RVS is a twisted-pair cable with a single insulation layer.
As can be seen, RVS, RVB, BVVB, and RVV cables are all considered flexible cables. People often compare rigid and flexible cables. Flexible cables are primarily used for connecting power cables to appliances and equipment, as well as for connecting circuit boards and components within appliances. Flexible cables are more resistant to transverse breakage. Of course, each cable type has its own application, so the best choice is to consider its advantages and disadvantages based on the specific situation.
