Hint: Campground chaos
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These UF cables are providing 120V power for receptacles and lights at several tent sites in this campground. While Sec. 340.10(3) permits UF cable to be used outside in wet locations, and Sec. 340.12(10) allows UF to be used where exposed to the direct rays of the sun if the cable is identified as being sunlight resistant, Sec. 225.26 specifically prohibits trees from being used for supporting overhead conductor spans. The swaying and movement of the trees can cause the cables to be damaged, resulting in shock or fire hazards. UF cable is not permitted to be used as overhead cable except where installed as messenger-supported wiring in accordance with Sec. 340.12(11). Another violation you may be able to spot in the photo relates to the splices made in the UF cable without the use of any box or enclosure. Section 300.15 requires splices to be placed in a box or enclosure. However, a box is not required when the UF is spliced underground in accordance with Sec. 300.15(G).