What is the maximum number of bends allowed in a run of conduit without requiring additional pull points?

In conduit installations, the maximum number of bends allowed in a run without requiring additional pull points is three. This guideline is established to ensure that electrical wires can be pulled through the conduit without excessive friction or difficulty, which can cause damage to the wires or make installation cumbersome.

Each bend adds to the resistance the puller faces, and having too many bends can make it practically impossible to install the conductors. Therefore, if a run exceeds three bends, it necessitates the addition of a pull point, such as a junction box, to facilitate easier wire pulling.

Understanding this rule is vital for industrial electricians, as it helps to ensure the integrity of the electrical installation and compliance with electrical codes, which prioritize safety and efficiency in electrical work.