What is the voltage drop limit recommended for branch circuits?

The recommended voltage drop limit for branch circuits is typically established at no more than 3%. This guideline is crucial for ensuring that electrical devices receive sufficient voltage for proper operation. A voltage drop beyond this threshold can hinder the performance of electrical equipment, especially in cases where devices are sensitive to voltage fluctuations.

Maintaining a voltage drop within the 3% limit helps prevent issues such as flickering lights, overheating, and potential damage to appliances. This standard is derived from industry guidelines to enhance safety and efficiency in electrical installations. Keeping voltage drop in check contributes to longer lifespan and improved functionality for connected devices, making it essential for electricians to adhere to this recommendation during system design and installation.