Any safety pro with one week of experience in the field will understand the abuses of “extension cords.” These cords may be the most common finding of any organization, and often, the professional may not be fully versed in the OSHA and NFPA 70 requirements. So, once again, I turn to the IFC for some easy and very straightforward requirements that can be used as a “quick check” for the safe use of extension cords.
(emphasis by me)