scope:

This standard applies to electrical equipment, or parts of such equipment, for use in Class I and II, Division 2, and Class III, Divisions 1 and 2, hazardous (classified) locations.

This standard is intended to be used in conjunction with FM Approvals Standard 3600, Electrical Equipment for Use in Hazardous (Classified) Locations - General Requirements, which includes the general requirements that apply to all types of classified location protection methods.

Purpose

This standard states testing and certification requirements for Nonincendive Electrical Equipment for use in Class I and II, Division 2, and Class III, Divisions 1 and 2, hazardous (classified) locations as defined in Articles 500, 501, 502 and 503 of the National Electrical Code^®, ANSI/NFPA-70 (NEC^®).

Testing and certification criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a surveillance program.