What is the maximum number of bends allowed in a conduit run per NEC requirements?

The National Electrical Code (NEC) outlines specific guidelines for conduit bends to ensure proper installation and functionality. According to the NEC, the maximum number of bends allowed in a conduit run is three. However, when analyzing the combinations of bends, the provision indicates that a maximum of two 90-degree bends is permissible if there is also a 45-degree bend included in the configuration. This regulation helps to minimize wire stress and enables easier pulling of conductors through the conduit.

The combination of two 90-degree bends and one 45-degree bend allows for efficient routing while adhering to the maximum bend limitations. This configuration therefore aligns with NEC standards for maintaining an effective conduit system. In comparison to other combinations, this option provides a strategic balance between maximizing bend allowances and ensuring the cable can be effectively installed without excessive strain or difficulty.