What type of wire is commonly used for elevator control circuits?

Stranded copper wire is commonly used for elevator control circuits due to its flexibility and durability. This type of wire consists of multiple small strands of copper twisted together, which makes it easier to route through various tight spaces in an elevator system. The flexibility of stranded wire allows it to bend and maneuver without breaking, which is particularly advantageous in applications where movement or vibration may occur, such as in an elevator control circuit.

Additionally, stranded copper wire provides excellent conductivity and is less susceptible to fatigue compared to solid wire when subjected to motion. It also tends to have a lower risk of damage during installation and use, which is crucial for a reliable elevator operation. The combination of these attributes enhances the safety and efficiency of elevator control systems, making stranded copper wire the preferred choice for this application.