Clients' Concerns:  Costly, intermittent problems with the operation of sensitive electronic hardware were being experienced by this high-tech manufacturer located north of San Francisco.  Electromagnetic interference (EMI) from the building (or nearby area) was suspected, because the problem had not occurred at their previous location and began as soon as they moved to the new production facility.

Solution Implemented:  We systematically traced and repaired a series of error conditions within the building's electrical system.  First, we initiated a very thorough and complete inspection and testing of all electrical panels, subpanels and circuits.  This was done to detect any wiring errors or other problems that might cause stray electrical current (or voltage) to "leak" into the grounding system or travel improperly within the neutral wires.  Either of these conditions are common causes of both radiated and conducted electromagnetic interference.  Our testing found six important wiring errors, all of which were easily corrected.  Six months later, the company's production engineer confirmed that the interference problems stopped right after we repaired the building's wiring problems.