What is the minimum wire bending space for two 1/0 conductors not entering or leaving the wall opposite the terminal?

The minimum wire bending space for conductors is specified in the National Electrical Code (NEC) to ensure that wires can be installed and serviced safely without being damaged or stressed too much. For conductors like 1/0 AWG, especially when they are not entering or leaving the wall opposite the terminal, there are specific requirements that need to be met for bending space.

The choice of 5 inches is correct because the NEC dictates that when multiple conductors are bundled together within a raceway or cable, the bending space must allow the conductors to bend without exceeding their radius limit. For 1/0 conductors specifically, the NEC provides a general guideline which includes 5 inches of bending space around terminals to facilitate proper installation.

This bending space is crucial for maintaining the integrity of the wire insulation and preventing potential faults or failures that may result from improper bends or stress on the conductors. Therefore, while other measurements may be options available to consider, 5 inches is the specified minimum that ensures compliance with safety and operational standards set forth in the NEC for installer practices.