From ladders to tools we can say they have no own source of ignitions.
Anyway their usage in potential hazardous environment shall be documented that while using there is no potential hazard of ingition.
Keep up good work!
Arpad
Ex personnel competency certificate Hazardous area classification (zone concept) Ex certificate or
…normal operation with worst conditions. iec 60079-10-1 says: “Catastrophic failures As far
concept to allow design, assessment and testing of electrical equipment that cannot
once we had a project: 2 rocket silos were built in a
arpadveress 
