What term describes the stranding of a conductor that has virtually eliminated voids between the strands?

The term that describes the stranding of a conductor which has virtually eliminated voids between the strands is "compact stranding." This technique is designed to maximize the surface area of the conductor while minimizing the air gaps that can affect performance. Compact stranding involves tightly winding the strands together, allowing them to fit closely and reducing the spaces between them. This close configuration enhances electrical conductivity and reduces the chances of oxidation or corrosion occurring within the conductor, which is vital for maintaining efficiency and reliability in electrical applications.

In contrast, other stranding types do not focus on eliminating voids to the same degree. For example, concentric lay typically refers to a construction where strands are layered in a concentric manner, which may not prioritize void reduction to the same extent. Solid stranding involves using a solid piece of conductor without separation into strands, thus lacking the characteristics important in this context. Lastly, thermoset stranding is not a standard terminology used to describe the physical arrangement of strands, but rather refers to conductors insulated with thermosetting materials, which are not directly related to the void elimination in stranding.