What is the maximum total allowable voltage drop on both feeder and branch circuits?

The maximum total allowable voltage drop on both feeder and branch circuits is typically set at 5%. This standard is important for ensuring the efficiency and performance of electrical systems, particularly in entertainment and technical applications where lighting and performance equipment can be sensitive to voltage variations.

When voltage drops exceed 5%, devices may not function properly, leading to performance issues such as flickering lights or equipment failures. Adhering to the 5% guideline helps maintain the integrity of the electrical system and enhances the safety and reliability of the electrical distribution.

It's essential to note that while some systems may have different tolerances based on specific applications or local codes, the widely accepted standard for total voltage drop is 5%. This standard is rooted in both performance optimization and safety considerations, ensuring that equipment receives sufficient voltage under load conditions.