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FM Approvals 3640
- Land Mobile Radios for use in Class I, Division 1 Hazardous (Classified) Locations
- standard by FM Approvals, 06/01/2013
- Publisher: FM Approvals
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This standard specifies the particular requirements for construction, test and marking for Land Mobile Radio (LMR) equipment and accessories for use in Class I, Division 1, locations as defined by the National Electrical Code, ANSI/NFPA 70. This standard applies to equipment with a nominal battery voltage not exceeing 24 Vdc.