According to the NEC®, how many bends are allowed in a conduit run between two junction boxes?

The correct response reflects the guidelines set forth in the National Electrical Code (NEC) regarding conduit bends. Specifically, the NEC allows for a total of two 90-degree bends plus one 45-degree bend and one 12-degree offset in a single conduit run between junction boxes. This arrangement provides a reasonable balance of flexibility and structure, enabling electricians to navigate around obstacles while maintaining the integrity and safety of the conduit system.

The maximum allowable bends are established to ensure that conductors can be pulled through without excessive force, which might damage the wire or compromise the installation. Each type of bend serves a specific purpose in conduit layout. The combination of bends provides sufficient adaptability while adhering to NEC standards designed to facilitate safe and effective electrical installations.

Understanding the reasoning behind these specifications is critical for compliance and safety in electrical work, ensuring that installations meet both functional and legal requirements.