Sherlock Ohms: Case of the Shocking Subcontractor

Sherlock Ohms: "Case of the Shocking Subcontractor" - RF CafeSherlock Ohms is a regular feature of Design News that presents submissions from readers about troubleshooting challenges and how they were solved. This story titled "The Subcontractor Zapped the Network" addresses the dangers an unbalanced 3-phase load can cause when the neutral is improperly terminated. As an electrician many, many moons ago, I encountered this scenario a couple times during trouble calls to industrial locations. Also demonstrated is the all-too-common problem of having mindless drones on staff.








Posted  February 2013