The receptacle outlet required for indoor electrical service equipment shall not be required to be installed for which type of dwelling?

• A. One-family dwellings
• B. Two-family dwellings
• C. One- and two-family dwellings
• D. Multifamily dwellings

Answer: (C)

Receptacle outlets for indoor service equipment have exceptions based on the type of dwelling, because the code aims to balance safety and practicality in different building sizes and configurations. For one- and two-family dwellings, the requirement to install a dedicated receptacle outlet for indoor service equipment is not needed. This means single-family homes and two-family homes aren’t mandated to add that specific outlet, likely because the service equipment arrangements in these smaller buildings typically provide accessible servicing without an extra outlet. In contrast, multifamily dwellings often have more complex service setups and multiple units, so the receptacle is still required there to facilitate maintenance and testing across the building. So the type of dwelling for which this requirement is not required is one- and two-family dwellings.