Increased safety ‘ e ‘

Increased safety ‘ e ‘

This protection prevents sparks or other surface temperatures that occur in normal and abnormal situations for which the engine is certified . The corresponding echo Directed ATEX Category 2 follow :

  • Potential sources of ignition such as sparks, flames, electric arcs and other ignition sources must not occur.
  • List of streets and electrical current leakage in conductive equipment parts which could lead to avoid.

To be installed in Zone 1 , the motor must comply with Category 2 requirements even used in zone 2 . The explosive gas penetrates inside the engine without any risk of explosion because:

  • All parts inside the engine temperature does not exceed the class approving the motor
  • In the abnormal situation that turns off the engine before the temperature inside reached the kind of engine temperature
  • No risk at all that sparks occur because the material selected for the relevant components , specific design regarding connection and open spaces of the moving parts . .
Related standards ‘ and ‘ type of protection:
EN 60079-0: 2004-03Electrical equipment for explosive gas atmospheres . Part 0 : General requirements .
EN 60079-7: 2003-08Electrical equipment for explosive gas atmospheres . Part 7 : Increased safety “i”
EN 50014: June 1997Electrical equipment for potentially explosive atmospheres . General requirements .
EN 50019: July 2000Electrical equipment for potentially explosive atmospheres . More security  ‘i’.
IEC 60079-0: 2004-01Electrical equipment for explosive gas atmospheres . Part 0 : General requirements .
IEC 60079-7: 2001-11Electrical equipment for explosive gas atmospheres . Part 7 : Increased safety “i”.
  • In addition to the above , there is in Germany a recommendation for you under the minimum time VIK Reference : March 1999. This protection is defined by: Tea Temperature Class : The maximum time allowed for the motor locked rotor and used to establish “and” certificate relay protects the motor. This protection is ensured during normal running conditions , conditions and lower abnormal conditions in case of a rotor situation happens after a period of continuous operation . Temperature rise : The maximum length of time you to provide compatibility with relay output characteristic must follow the minimum safety standards set by the larger engine .
    Temperature Class

    • Te : The maximum time allowed for the motor locked rotor and used to establish “and” certificate relay protects the motor. This protection is ensured during normal running conditions , conditions and lower abnormal conditions in case of a rotor situation happens after a period of continuous operation .

    Temperature rise : The maximum length of time you to provide compatibility with relay output characteristic must follow the minimum safety standards set by the big motors