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| | 3,5,9 |
 | | The nine most common power problems are: power failure, power sag, power surge, undervoltage (brownout), overvoltage, line noise, frequency variation, switching transient, and harmonic distortion. |
 | | These nine power problems are potentially harmful to your valuable data and your computer hardware. |
 | | Each series is designed to fit a different level of power protection needs and allows you to match your needs precisely with the appropriate level of power protection. |
| www.powerlineengineering.com /3,5,9.htm (224 words) |
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