What is often a common contributor to objectionable current over equipment grounding conductor paths in electrical systems?

The presence of neutral-to-ground connections on the load side of the service disconnect can indeed lead to objectionable current over equipment grounding conductor paths in electrical systems. This occurs because when a neutral is incorrectly bonded to ground beyond the service disconnect, it creates an alternate path for the neutral current to flow. This can cause the grounding conductor to carry current that it was not designed to handle, which can lead to issues such as spurious tripping of circuit breakers, overheating, and even equipment damage. Proper grounding practices dictate that the neutral should only be bonded to the grounding system at the service entrance to maintain safety and efficiency in the system.

Understanding the significance of proper grounding and bonding is essential for the overall safety and functionality of electrical systems, highlighting the importance of eliminating improper connections that can create hazards.