BICSI Technician Practice Exam

The allowable number of 90-degree bends in a single conduit segment is important for maintaining proper cable management and functionality. When two 90-degree bends are used, it allows for a manageable radius of the conduit's path, reducing stress on the cables inside.

In standard practice, having two 90-degree bends is typically acceptable, as it prevents excessive force on the cables, ensures that the conduit is not overly complicated, and allows installers to maintain appropriate pull lengths without difficulties. Pulling cable through more than two 90-degree bends can lead to issues such as increased friction, cable damage, and difficulties in installation.

While it may be possible to have one 90-degree bend more than this in certain situations, regulations generally allow for two bends unless specific conditions warrant a different approach. These conditions might relate to the installation environment, particular cable types, or manufacturer recommendations, which could include exceptions or require additional planning to ensure compliance with safety and standards.

Thus, two bends are the standard limit, providing a balance between flexibility in design and ease of installation while minimizing potential problems during the process or once the installation is complete.