Engineers involved in the speci-fication, design, installation, or relocation of equipment should understand electrical panel labeling requirements needed to meet national codes and OSHA standards for individual state laws. A component that has a listed label, such as Underwriters Laboratories Inc. (UL), has been subjected to test and evaluation, meaning the listed component meets the nationally recognized safety standards. Appropriate labeling, including incoming power, short-circuit currentrnratings, and required personal protection equipment, provides the information needed to install and maintain equipment in a safe and reliable manner.
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