1. 
   Nonincendive
   Nonincendive circuits are those which may spark under normal operating conditions, but which may not release enough energy to cause ignition. Circuits may contain enough energy for potential ignition should both the equipment fail and the process fail (tw
   Found op http://www.chemicalglossary.net/definition/1186-Nonincendive
   
   
2. 
   Nonincendive
   Nonincendive circuits are those which may spark under normal operating conditions, but which may not release enough energy to cause ignition. Circuits may contain enough energy for potential ignition should both the equipment fail and the process fail (two concurrent failures).
   Found op http://www.amgas.com/gloss.htm
   
   

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