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CEC/NEC (North American) Area Classifications
Flammable gases, vapors or liquids
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In issuing and making this document available, LDPI is not undertaking to render professional or other services for or on behalf of any person or entity, nor undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstance.
This document is intended as a simplified guide through hazardous and extreme conditions as found in many industrial applications. For actual installations, use the NEC/CEC code book and IEC/CECELEC approvals and wiring codes as final authority on any installation. All design should be performed by licensed professional engineers and installation should be performed by competent licensed electrical contractors.
CLASS I
CLASS I (Gas and Vapors) Hazardous Substances
CLASS II
CLASS II (Explosive Dusts) Hazardous substances
CLASS III
EURO: IEC/CENELEC Area Classifications
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