The primary protector grounding terminal for a mobile home must be connected with a copper conductor no smaller than what size where there is no service equipment?

The requirement for connecting the primary protector grounding terminal in a mobile home is designed to ensure adequate grounding for safety and performance. The connection must be made with a copper conductor, and 12 AWG is specified as the minimum size. Using 12 AWG ensures that the conductor can handle the potential fault current in case of a fault condition without overheating. This size strikes a balance between being sufficiently robust to carry the expected load while remaining manageable for installation.

Larger wire sizes provide better conductivity and safety, which is essential in grounding applications. However, if the wire is too thick, it can complicate installation without providing additional safety benefits. Conversely, smaller wire sizes would not provide adequate protection, potentially leading to overheating or failure during fault conditions. Thus, 12 AWG is established in regulations as the minimum size to ensure a reliable and safe connection for grounding the mobile home’s electrical system.