Hi
timmy39120 wrote:
In other words "explosion proof". Iphones are used by a lot of people in industry where the manufacturing area is a classified areas (classified as per section 500 of the NFPA 70 i.e. NEC). These classified areas are dangerous in that it is possible under normal or abnormal conditions (depending on the classification) that a spark could result in an explosion. ..
The following information from the iPhone User Guide refers:
"Explosive atmospheres Charging or using iPhone in any area with a potentially explosive atmosphere, such as areas where the air contains high levels of flammable chemicals, vapors, or particles (such as grain, dust, or metal powders), may be hazardous. Obey all signs and instructions."
More information:
http://help.apple.com/iphone/10/#/iph301fc905