How should the grounded conductors be installed in relation to service disconnecting means?

The correct answer regarding how grounded conductors should be installed in relation to service disconnecting means is that they must be routed with ungrounded conductors. This requirement is essential for maintaining the integrity and safety of the electrical system.

Grounded conductors play a crucial role in ensuring that fault currents can safely return to the ground. By routing them alongside ungrounded conductors, it provides a clear path for electrical currents during normal operation and during fault conditions. This arrangement helps to ensure that both types of conductors are appropriately managed and identified, reducing the risk of confusion or misconnection.

Additionally, routing grounded conductors with ungrounded conductors allows for better organization within the electrical installation, ensuring compliance with safety codes and reducing the potential for electromagnetic interference. This arrangement is part of the broader practice of properly grounding electrical systems to protect both equipment and users.

In contrast, isolating grounded conductors completely or not connecting them to any terminals would compromise the effectiveness of the grounding system and increase safety hazards. Such practices would not align with the standards outlined in Article 250, which emphasize the necessity of proper grounding and bonding techniques.