Labels:text | screenshot | number | display | parallel | font | rectangle | diagram | line OCR: GROUND LOOP Main Switch panel Computer Ho Neutral Power : Ground supply ! O Ground current - ! FIGURE 1: A typical wiring error known as a ground loop. The computer is already grounded at the main switch vio the three-wire power cord. A second ground connection, attached to the computer, completes a circuit, allowing ground currents to flow through the loop.
