Understanding the Problem
Damage from voltage surges usually can be avoided, but still accounts for significant losses losses each year. What are voltage surges? Simply stated, they are disturbances in the normal pattern of a power system’s supply voltage — those caused by circuit switching and those due to the environment.
Circuit switching surges happen when a sudden change to an electrical circuit occurs. That may be due to equipment use, changes in utility power supply, or damaged power lines. Arcing caused by loose connections or ground faults are other causes. The most evident example of environmental surge is lightning. Although people often discuss lightning and voltage surges as two distinct phenomenon, lightning is in fact one type of surge.
Protecting Your Equipment
How can you protect your Identix sensitive electronic equipment? The simplest means is the proper use of surge suppression devices and making sure all equipment is properly grounded. In order to be effective, the grounding system must be continuous. And there should be only one grounding system.
For devices that requires and external DC power supply, to avoid damages to the equipment caused by arching, make sure you always connect the device first to it's power supply and only after that, energize the power supply connecting it to the electric outlet.