Safety in Zones of Hazardous Areas on Ships

Each zone in hazardous areas on ships has specific requirements that must be met to ensure the safety of personnel, property, and the environment. In this lesson, we will cover the general requirements for each zone.

 

General Requirements for Zone 0:

  • All electrical equipment used in Zone 0 areas must be explosion-proof and certified for use in hazardous areas.
  • Adequate ventilation and gas detection systems must be installed and regularly maintained.
  • Strict hot work permit procedures must be followed, and smoking, open flames, and sparks are strictly prohibited.
  • Personnel working in Zone 0 areas must be trained in hazardous area awareness, gas detection, and emergency procedures.

 

General Requirements for Zone 1:

  • All electrical equipment used in Zone 1 areas must be certified for use in hazardous areas and designed to prevent the release of sparks or hot surfaces.
  • Adequate ventilation and gas detection systems must be installed and regularly maintained.
  • Smoking, open flames, and sparks are strictly prohibited, and hot work permit procedures must be followed.
  • Personnel working in Zone 1 areas must be trained in hazardous area awareness, gas detection, and emergency
 
General Requirements for Zone 2:
  • Electrical equipment used in Zone 2 areas must be designed to prevent the release of sparks or hot surfaces.
  • Adequate ventilation must be provided to prevent the accumulation of hazardous substances.
  • Gas detection systems must be installed and regularly maintained.
  • Smoking, open flames, and sparks are strictly prohibited.
  • Hot work permit procedures must be followed.
  • Personnel working in Zone 2 areas must be trained in hazardous area awareness, gas detection, and emergency procedures.
  • Intrinsically safe equipment must be used in Zone 2 areas, which means that the equipment is designed to prevent the release of enough energy to ignite flammable substances.
  • The use of portable electrical equipment in Zone 2 areas must be restricted and supervised.
  • The installation and maintenance of electrical equipment must be carried out by competent personnel.

 

All of these locations were classified by International Electromechanical Commission (IEC) by publishing a series of standards, they are also categorizing and testing all equipment designed in hazardous locations known as “Ex equipment”.

 

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