I may be mistaken but I feel NFPA 54 addresses it as enough clearance shall be taken care of to permit cleaning, service etc. without having dimensional conditions. There are lots of matters which can be saved along with the code can't record them all, so The outline in Part https://preferredcontentlanguagee21986.salesmanwiki.com/9573167/5_easy_facts_about_preferred_content_language_english_described