System Sensor intrinsically safe-firepro devices

Guide Use Safe Protection Devices Manuals Online of Contents INTRODUCTION of intrinsic safety hazards requiring explosion protection of explosions is intrinsic safety methods of protection filling safety safety of intrinsically safe equipment of detectors PRINCIPLES OF INTRINSICALLY SAFE DETECTION detectors smoke detectors where other types of detectors may be used note about proper detector placement INSTALLATION OF INTRINSICALLY SAFE DETECTORS methods identification and mechanical separation HAZARDOUS AREA CLASSIFICATIONS safety approval authorities vs European classification systems adoption of the IEC system system hazardous area classifications 1 Class Division Group the Division and Zone systems differ 2 Class I area classification comparison