What is required for cabinets and cutout boxes to accommodate conductors installed in them?

Cabinets and cutout boxes must have approved space to accommodate conductors installed within them. This requirement ensures that there is sufficient room for the conductors to be terminated and connected properly without risk of overcrowding, which could lead to overheating and increase the potential for electrical hazards.

The concept of approved space also relates to managing the arrangement of conductors to prevent chafing, damage, or improper bending. Adequate space allows for maintenance and ensures that connections can be made safely and effectively in compliance with the relevant electrical codes.

While maximum load capacity, ventilation openings, and metallic construction are important considerations in electrical installations, they don't specifically address the need for adequate spacing of conductors within cabinets and cutout boxes. Ensuring approved space is a key factor in facilitating safe and efficient electrical installations.