Changes

'''Gb''' - Equipment Protection Level<br>

'''Gb''' - Equipment Protection Level<br>

<br><br>'''II''': There are two equipment groups - Group I, which concerns mines and is very restrictive due to the highly volatile methane gas and dust present, and Group II, which relates to all other above-ground industries.  

<br><br>'''II''': There are two equipment groups - Group I, which concerns mines and is very restrictive due to the highly volatile methane gas and dust present, and '''Group II''', which relates to all other above-ground industries.  

'''2''': There are three area category types, with Category 1 requiring a very high level of protection and defined as an area having a permanent or prolonged risk of explosions (Zone 0), Category 2 which requires a high level of protection and has a frequent risk of an explosive mix being present in the air (Zone 1), and Category 3, specified as requiring a normal level of protection with a small chance of an explosive mix forming (Zone 2).  

'''2''': There are three area category types, with Category 1 requiring a very high level of protection and defined as an area having a permanent or prolonged risk of explosions (Zone 0), '''Category 2''' which requires a high level of protection and has a frequent risk of an explosive mix being present in the air ('''Zone 1'''), and Category 3, specified as requiring a normal level of protection with a small chance of an explosive mix forming (Zone 2).  

 

'''G''': This specifies the type of explosive atmosphere. D for dust and G for gases.  

'''G''': This specifies the type of explosive atmosphere. D for dust and '''G''' for gases.  

'''Ex''': This means the equipment is explosion-proof.  

'''Ex''': This means the equipment is explosion-proof.  

'''ib''': This indicates the type of protection. Intrinsic safety ("ib") is a technique used to ensure that electrical and electronic equipment can be used in explosive atmospheres without the risk of ignition.  

'''ib''': This indicates the type of protection. Intrinsic safety ("ib") is a technique used to ensure that electrical and electronic equipment can be used in explosive atmospheres without the risk of ignition.  

'''IIC''': This indicates the level of protection against specific types of explosive gases. Group IIC certification is the highest possible, so also covers the other levels.  

'''IIC''': This indicates the level of protection against specific types of explosive gases. Group '''IIC''' certification is the highest possible, so also covers the other levels.  

'''T6''': Different substances may combust at different temperatures. The lower the combustion temperature is, the more dangerous the substance is. Therefore, each piece of equipment used in an explosive environment is classified according to the maximum surface temperature it generates. The maximum surface temperature of the equipment should always be well below the ignition temperature of the gases present. If Max Surface Temperature of Equipment does not exceed 85 °C its certified for T6 and is the highest possible rating, so also covers other classes. <br><br>

'''T6''': Different substances may combust at different temperatures. The lower the combustion temperature is, the more dangerous the substance is. Therefore, each piece of equipment used in an explosive environment is classified according to the maximum surface temperature it generates. The maximum surface temperature of the equipment should always be well below the ignition temperature of the gases present. If Max Surface Temperature of Equipment does not exceed 85 °C its certified for '''T6''' and is the highest possible rating, so also covers other classes. <br><br>

{{certification disclaimer}}

{{certification disclaimer}}