backfeed
n.— «Backfeed is the term used to describe the sometimes lethal (to unsuspecting utility workers) voltage that appears on an apparently isolated circuit.» —“Brownouts strike city” by Christopher Diakopoulos Saratogian (Saratoga Springs, N.Y.) Mar. 30, 2006. (source: Double-Tongued Dictionary)
Further reading
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One way to make your new business look trendy is to use two nouns separated by an ampersand, like Peach & Creature or Rainstorm & Egg or … just about any other two-word combination. A tongue-in-cheek website will generate names like...