Metal water piping systems in separate buildings or structures shall be bonded to which of the following?

The bonding of metal water piping systems in separate buildings or structures is a critical aspect of electrical grounding and safety. The correct answer encompasses the notion that bonding can be applied to various scenarios depending on the requirements of specific properties and local regulations.

When metal water piping systems are bonded, it ensures that any stray electrical current that may leak from electrical systems is safely directed to the ground instead of posing a danger to individuals or damaging equipment. Bonding helps create a common ground potential between different structures, which is particularly important when these structures may have different grounding methods or are located apart from each other.

The requirement for bonding can apply to all structures on the same property, thereby enhancing the overall grounding system's effectiveness. Moreover, in some cases, bonding may also be recommended between adjacent structures to ensure that any potential electrical difference that could arise between them is minimized.

This flexibility reflects industry practices and safety regulations that emphasize the importance of grounding and bonding systems without restricting the applicability to a singular scenario. Hence, it is reasonable to recognize that metal water piping systems in separate buildings can indeed be bonded in various configurations, resulting in the understanding that any of the provided scenarios may be appropriate depending on specific circumstances.