Labels:text | screenshot | number | parallel | font | rectangle | display | line | diagram OCR: GROUND LOOP Main Switch ponel Computer Hol Neutral Power : Ground supply ! -- 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.
