In pull boxes or junction boxes with any dimension over which feet must all conductors be cabled or racked in an approved manner?

In pull boxes or junction boxes that have any dimension over 6 feet, all conductors must be cabled or racked in an approved manner. This requirement is part of the National Electrical Code (NEC), which outlines proper practices for ensuring safety and efficiency in electrical installations. The rationale behind this regulation stems from the need to manage conductor spacing, prevent overheating, and maintain accessibility for future maintenance or troubleshooting.

When a box exceeds this dimension, improper organization of the conductors may lead to several issues, including the risk of physical damage, increased electromagnetic interference, and difficulties in identifying or accessing specific conductors. By mandating that conductors be properly cabled or racked, the NEC ensures that installations not only meet safety standards but also facilitate effective maintenance and operation. The stipulation for 6 feet serves as a threshold where discrepancies in installation practices could lead to more pronounced risks, thus necessitating a structured approach to conductor management in larger boxes.