An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide instantaneous or near-instantaneous protection from input power interruptions by means of one or more attached batteries and associated electronic circuitry for low power users, and or by means of diesel generators and flywheels...
Tuesday, 31 January 2012
Tuesday, 17 January 2012
GE's Office Bently Nevada, Minden Nevada
Posted on 03:47 by Unknown

GE's Office Bently Nevada, Minden Nev...
Sunday, 1 January 2012
Sheet Metal Thickness Gauges
Posted on 04:50 by Unknown
Gauge (ga) Standard Steel Thickness (inches) Galvanized Steel Thickness (inches) Aluminum Thickness (inches) 3 0.2391 0.2294 4 0.2242 0.2043 5 0.2092 0.1819 ...
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