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Type of ignition sources

  • Hot surfaces
  • Flames and hot gases
  • Mechanically produced sparks
  • Electrical equipment
  • Transient currents
  • Static electricity
  • Lightning strikes
  • Electromagnetic waves
  • Optical radiation
  • Ultrasound
  • Chemical reactions
  • People (indirectly)

The Techniques of equipment protection for use in explosive atmospheres are just a matter of controlling (eliminating) possible ignition sources (secondary explosive protection).
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During all stages of our manufacturing and production process, a fully documented and approved Quality Assurance System to ISO 9001 is imposed to ensure the highest quality throughout.

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DNH AS   Gruvevn. 2/6, 3770 Kragerø, Norway   Phone: + 47 35 98 56 00   Fax: + 47 35 98 56 10   E-mail: dnh@dnh.no  
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