What is considered an acceptable voltage drop for feeders and branch circuits?

The recommended acceptable voltage drop is 3% for feeders and 5% for branch circuits. This standard is in place to ensure that electrical systems operate efficiently. A voltage drop beyond these levels can lead to reduced performance of electrical devices, potential overheating, and can ultimately affect the lifespan of both the wiring and the connected equipment.

For feeders, a voltage drop of 3% is the upper limit to maintain system integrity and ensure that power is delivered effectively to various parts of the electrical installation. This allows for a balance between energy loss and the operational efficiency of the system. Similarly, a 5% voltage drop for branch circuits is deemed acceptable as it provides flexibility while still maintaining reliable performance.

Adhering to these standards helps to minimize energy loss while ensuring that devices function correctly, thus making the chosen answer the best option based on established electrical guidelines.