According to code, how long should the distance be for a straight pull?

In electrical installations, the term "straight pull" refers to the process of pulling conductors through a raceway or conduit without any bends that would change the direction of the cable run. According to the National Electrical Code (NEC), when conducting a straight pull, the distance from the point of pulling to the point where the conductors enter the conduit must be a specific multiple of the trade size of the conduit being used.

The correct answer indicates that the distance should be equal to four times the trade size of the conduit. This requirement ensures that there is enough room for the conductors to be pulled through without excessive strain or damage, which could occur if the distance were too short. By adhering to this guideline, electricians can minimize the risk of mechanical stress on the conductors and help ensure the integrity and safety of the electrical installation.

Understanding the correct pulling distance is crucial for maintaining compliance with code and delivering a reliable electrical system. Other potential distances do not provide the same level of safety and effectiveness in pulling conductors, which is why the four-times rule is the widely accepted standard.