ISA 12.12.01-2000
Nonincendive Electrical Equipment for Use in Class I & II, Division 2 & Class III, Divisions I & 2 Hazardous : S12.12
standard by The International Society of Automation, 04/01/2000
Full Description
Formerly S12.12-1994. Provides requirements for the design, construction, and marking of electrical equipment or parts of such equipment used in Class I, Division 2 locations. This document establishes uniformity in test methods for determining the suitability of the equipment and associated circuits and components as they are related to their ability to ignite a specified flammable gas or vapor-in-air mixture. This standard applies only to equipment, circuits, or components designed and assessed specifically for use in Class I, Division 2, hazardous locations as defined by the National Electrical Code NFPA No. 70, Articles 500 and 501 or the Canadian Electric Code (Part I), C22.1, Section 18.