What does "voltage drop" refer to?

"Voltage drop" refers to the reduction in voltage in an electrical circuit between the source of power and the load that consumes that power. This phenomenon occurs when electrical energy is converted into other forms of energy, such as heat, due to the resistance present in the conductors and components of the circuit. As current flows through these resistive elements, the voltage decreases, leading to a lower voltage being delivered to the load compared to what is available at the power source.

Understanding voltage drop is crucial for ensuring efficient electrical installations. Excessive voltage drop can result in inefficient operation of electrical devices, potential malfunctions, and equipment damage. Adequate sizing of conductors, minimizing circuit lengths, and using appropriate materials can help mitigate voltage drop, ensuring that devices receive the voltage they require for optimal performance.