In a conduit body, what is the requirement regarding the free space for conductors?

The requirement for conduit bodies regarding free space for conductors is that it must be sized for all enclosed conductors. This means that the conduit body should provide adequate space to accommodate the conductors that will be inside it, ensuring that they can be installed without undue stress or risk of damage. Proper sizing is critical to prevent overheating and to allow for safe pulling of cables, which is especially important in maintaining the integrity and safety of the electrical system.

By sizing the conduit body for all enclosed conductors, it adheres to the National Electrical Code guidelines, which aim to promote safe electrical installations. This consideration is vital in preventing overcrowding, which can lead to heat buildup and potential hazards. The requirement emphasizes that each conductor be able to fit comfortably within the space provided, contributing to the overall safety and reliability of the electrical installation.