All references are based on the 2017 edition of the NEC.
Construction Site Calamity
Generally speaking, when splices are made in wiring methods such as MC cable, AC cable, and NM cables (among others), Sec. 300.15 requires a box to be installed to protect and contain the splices. When it comes to temporary wiring, Art. 590 can amend or modify this general rule. Section 590.4(G) provides some modifications to this box requirement. Unfortunately, this installer did no