Is there a reason why wires are solid copper or strands of copper?

Question

I noticed that wirings have different kinds wires inside the rubber coating. Does it make any difference in terms of transferring electricity or being solid or strands have its own purposes?

In: 7

Answer 1

Stranded wires for movable applications like anything you plug into an outlet e.g. vacuum cleaner, Kitchen blender, extension cords etc.

Solid wires for immovable applications like anything wall mounted. There is no law or standard that requires you to use solid wires at all. They are just cheaper to make, yield more copper per volume, easier to organize, and the insulation material isn’t as stressed much as it doesn’t move.