Jh. Kuczka et Ar. Hopmann, NEC VERSUS IEC METHODS OF PROTECTION FOR CLASS-I, DIVISION-1 VERSUS ZONE-1, HAZARDOUS (CLASSIFIED) LOCATIONS - A COMPARATIVE-ANALYSIS, IEEE transactions on industry applications, 29(4), 1993, pp. 716-720
Everyday, we are made aware of the increase in information, changes in
technology, and other factors that are having the effect of shrinking
the earth on which we live. Key words in our society are ''Globalizat
ion'' and ''Harmonization.'' This paper examines the two major systems
in the world for dealing with hazardous (classified) locations. These
two systems are those of the International Electrotechnical Commissio
n (IEC) and the National Electrical Code (NEC). The classification sys
tems will be compared, as will the methods of protection for Class I,
Division 1, and Zone 1.