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PowerShield protects whole buildings from transients, surges and spikes news on the Electrical news magazine PowerShield protects whole buildings from transients, surges and spikes (04/07/2007) PSI has launched the latest version of PowerShield. This transient voltage surge arrestor is fully compliant with the latest wiring standards and will deliver the highest level of protection for whole buildings, including all critical electrical circuits and equipment. It will play an important role in helping organisations to meet business continuity guidelines for maintaining operations.PowerShield is deployed in parallel with the incoming power supply to eliminate the damaging effects of transients, surges and spikes that can be caused by caused by external events such as local lightning strikes and utility capacitor switching. It detects the first impulse of any excess voltage and safely diverts it away in less than one nanosecond (one billionth of a second) preventing the occurrence of expensive damage to electrical equipment including computers, IT networks, production lines, telephones, EPOS, lifts and lighting.PowerShield has been designed to complement UPS systems that protect key equipment by maintaining power in event of sudden or unexpected loss. It has the resilience to be installed on the live side of an electrical system giving maximum protection to equipment connected to every power outlet including the UPS. Using the latest solid-state electronics, PowerShield is maintenance free and carries a full fifteen-year warranty. At 133x117x78mm, this small, compact unit can be easily installed into any main power panel. It has been fully tested and approved by Underwriters Laboratories a nationally approved testing authority. According to Jonathan Glover, a director of PSI: 揇espite the increasing reliance on computers and other microprocessor-controlled equipment, most businesses are unprepared for the catastrophic failures that could result from power surges. Insurance companies are now actively recommending clients to install surge protection to minimise the likelihood of business shutdowns as a result of power problems.