Answer :
Final answer:
For electrical installations, at least one receptacle outlet must be installed directly above a show window for every 12 linear feet, ensuring safety and convenience in commercial display areas.
Explanation:
The question you asked pertains to the regulations for electrical installations, specifically the requirement for receptacle outlets above show windows. According to electrical installation codes, at least one receptacle outlet shall be installed directly above a show window for each 12 linear feet. This requirement ensures that there is adequate access to electrical outlets for lighting or other electrical needs in commercial display areas. The formal procedure to determine when an outlet is required is based on the linear measurement of the show window. Given the context provided, the answer is b. 12 linear feet. This standard helps ensure both safety and convenience in commercial settings.