Voltage drop occurs when there is a resistance in the electrical circuit, causing a decrease in voltage as the current flows through it. This reduction in voltage can happen due to various factors, such as:
If you have a 120V circuit and you calculate a drop of 3.6V: $$ (3.6 / 120) \times 100 = 3% $$ This is right on the limit of allowable drop. allowable voltage drop
Energy lost to resistance doesn't just disappear—it turns into heat. Excess heat can degrade wire insulation over time, posing a fire risk. Voltage drop occurs when there is a resistance
While some voltage loss is inevitable, excessive voltage drop is a silent killer of efficiency and equipment longevity. Excess heat can degrade wire insulation over time,
If voltage drop is natural, why do we have limits? Because operating equipment below its rated voltage causes significant problems:
The term "allowable" isn't just a rule of thumb; it is defined by electrical codes and standards. While specific regulations vary by region, the industry standard rule of thumb is: