For messenger-supported wiring, how should conductors enter the box?

Conductors entering a box should do so through individual holes to ensure proper strain relief and minimize the risk of damage to the conductors. This method allows for the effective separation of conductors, which helps to maintain organization within the box and ensures that any heat generated by the conductors is dissipated effectively. Individual openings also help prevent accidental short circuits that could arise from improperly grouped conductors.

Using single bundles can create issues with space and heat dissipation, and pushing conductors through insulation can lead to damaging the insulation itself, which increases the risk of electrical faults. Utilizing cable clamps ensures that individual conductors are secured and protected, but the primary guideline is that they should enter through separate holes to comply with safety codes and practices. This method supports not only safety but also makes it easier to identify and troubleshoot individual circuits if necessary.