How to distinguish between hard wires and soft wires and which one to choose?
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How to distinguish between hard wires and soft wires and which one to choose? What is the maximum square size for flexible wires? Some people say that BV is a solid wire, while BVR is a flexible wire ； Some people say that a letter P is attached to the back of flexible cables ； Some people say that YJV is a solid wire, while RVV is a flexible wire. . . There are so many code letters; it’s hard to figure them out
The main difference between hard wires and soft wires lies in their structure and material. Solid wires generally have a copper core with a PVC insulation layer on the outside; they have a relatively rigid structure and are suitable for applications that require a stable current flow and high loads. The flexible cable is made by weaving copper or aluminum wires, with a soft PVC insulation layer on the outside; it can be bent and twisted, making it suitable for use in situations where movement is required. The maximum square rating of a flexible cable depends on the specific application and requirements. Generally, the cross-sectional area of flexible wires is relatively small, usually ranging from 0.5 to 4 square millimeters. Regarding the selection of letter codes, different manufacturers and regions may have varying regulations. However, BV generally refers to single-core rigid wire, BVR generally refers to single-core or multi-core flexible wire, and RVV generally refers to multi-core flexible wire. If it is necessary to purchase cables, it is recommended to consult professionals or refer to relevant standard specifications to select the appropriate cables. .