What is prohibited when connecting a grounded conductor on the load side of the service disconnecting means?

When connecting a grounded conductor on the load side of the service disconnecting means, several practices are prohibited to ensure safety and compliance with electrical codes. One of the primary rules is that a grounded conductor must not connect to metal parts of equipment, as this can create a dangerous path for current in fault conditions, leading to shock hazards or equipment damage.

Additionally, connecting a grounded conductor to a grounding electrode conductor is disallowed. This is because a grounding electrode conductor is intended solely for grounding purposes, while a grounded conductor carries current under normal operating conditions. Mixing these connections can compromise the effectiveness of the grounding system and lead to unsafe conditions.

Reconnecting to ground is another practice that is prohibited in this context. This principle is rooted in the necessity of maintaining clear distinctions between grounding and grounded systems to protect the integrity of the electrical installation.

Since all these practices can lead to serious safety issues, the prohibition against them collectively ensures that electrical systems remain safe and functional. Therefore, the correct answer encompasses all these prohibited actions.