Hard wire is generally labeled as BV, it is a single copper wire, so relative to many shares, the hardness will be larger, the mechanical strength is large, the surface area is small, so its tensile strength is strong, it is not easy to oxidize, and the service life is long. Compared with short circuit current, it is easy to form, so it is better to use hard wire as control cabinet.

The soft wire is the kind of wire that makes up a whole piece. It is generally labeled as BVR. It is made up of a lot of copper wire. It is softer than BV, and its surface area is large and easy to oxidize. If the connection is bad, it is easy to burn, and it is not very resistant to short-circuit current, so it is difficult to maintain a fixed shape.

The difference between soft and hard wire

From the price:

The multi ply soft line is obviously laborious and laborious, the cost will be higher and the hard line will be cheaper.

In the construction analysis:

Single strand hard wire is prone to cause problems at joints and pressure lines; the advantages of single strands are large tensile strength.

Multi ply flexible wire is better for tube piercing while it has a certain advantage in heat dissipation.