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Uninterruptible power supplies

Useful Links

Performance Test Method for Uninterruptible Power Supplies is available from the Shop CSA Web site of the Canadian Standards Association (CSA).

Uninterruptible power systems (UPS) - Part 3: Method of specifying the performance and test requirements can be purchased from the International Electrotechnical Commission (IEC)'s Web site. More information can be found in IEC's publications index.

The National Electrical Manufacturers Association (NEMA) provides useful information in Uninterruptible Power Systems (UPS) - Specification and Performance Verification. This document offers guidance to manufacturers and users on specifying and verifying UPSs.

Pacific Gas and Electric Company's information bulletin Uninterruptible Power Supply provides information on types of UPSs and factors to consider when selecting one.

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