Last week a power outage that lasted about 30 seconds delayed about 300 US Airways flights. A key element of the airline′s backup power system was undergoing maintenance when commercial power went out near one of its Phoenix data centers. Because the UPS was being worked on, it did not act as an emergency power source.
Unfortunate accidents like this show the importance of UPS protection. However, power outages are not the only mains-borne events that can damage your business:
Electrical noise, for example, can be caused by lightning strikes as well as load switching, cable faults, nearby radio-frequency equipment and other sources. Data can be corrupted as a result.
Spikes are fast, short duration electrical transients in voltage (voltage spikes), current (current spike), or transferred energy (energy spikes) in an electrical circuit. They can be induced by thermostats or other equipment switching heavy electrical currents, or by power supply companies performing load switching. Nearby lightning strikes or short circuits are also potential serious sources.
Brownouts are drops of voltage in an electrical power supply. A voltage reduction may be an effect of disruption of an electrical grid, or may occasionally be imposed in an effort to reduce load and prevent a blackout. Depending on the supply company response, brownouts could last for several hours in extreme circumstances.
A correctly specified and installed UPS system can protect your equipment from these events. For this protection to be valuable, the UPS configuration must offer very high availability and resilience to failure. We recommend modular design to achieve this.
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