How many 90-degree bends are allowed per 100 ft in a conduit with a bend radius?

In conduit installations, the number of allowed bends plays a crucial role in maintaining the integrity and performance of the wiring being installed. The National Electrical Code (NEC) and other industry standards dictate the maximum number of bends in a conduit to ensure that there is minimal resistance and no excessive stress is placed on the conductors.

When a conduit has a specified bend radius, it determines how sharply the conduit can change direction without causing problems such as pinched wires or increased pulling tension during the installation of the conductors. Typically, for a conduit with a certain bend radius, no more than two 90-degree bends are permitted within a 100-foot run. This limitation is in place to facilitate easier pulling of wires and to ensure that there are no issues with the electrical performance of the cable resulting from excessive bends.

Understanding this guideline is essential for professionals installing conduit systems, as it helps prevent potential installation issues and maintains compliance with regulatory standards. Therefore, the assertion that no more than two bends are allowable within a given distance is grounded in best practices for electrical installations.