‍1. Explosion Protection Standards

The most common explosion protection standards are:

• ATEX (Directive 2014/34/EU): European standard for equipment operating in hazardous areas.
• IECEx: International explosion protection certification.
• NEC/CEC: North American space classification and equipment standards.

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2. Main Elements of Marking

2.1. Equipment Groups

• I: Equipment for underground mines.
• II: Equipment for surface installations and marine vessels. some text
   
  • IIA: Substances with low explosion risk (e.g. propane).
   
  • IIB: Substances with medium explosion risk (e.g. ethylene).
   
  • IIC: Substances with high explosion risk (e.g. hydrogen, acetylene).

2.2. Region Categories

• 1G/2G/3G: For gas environments (1G high risk, 3G low risk).
• 1D/2D/3D: For dust environments (1D high risk, 3D low risk).

2.3. Types of Explosion Protection

• Ex d: Explosion-proof enclosure prevents the explosion from spreading.
• Ex e: Increased safety, prevents sparks and overheating.
• Ex m: Prevents the entry of explosive materials with its filling component.
• Ex i: Spark-resistant electrical circuit with energy limitation.
• Ex p: Positive pressure protection prevents the entry of explosive gases.
• Ex t: Dust-tight enclosure protection.

‍2.4. Temperature Class

Prevents burning by defining the maximum temperature of the equipment surface. Examples

• T1: up to 450°C.
• T3: up to 200°C.
• T6: up to 85°C (the strictest category, for the most hazardous areas).

‍2.5. IP Protection Rating

The IP code indicates protection against dust and water:

• IP56: Partial protection against dust, protection against water spray.
• IP66: Complete protection against dust, protection against strong water spray.
• IP67: Full protection against dust, protection against temporary immersion in water.

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3. Ship Equipment Marking Examples

1. II 2G Ex d IIC T6 Gb
    
   • Equipment for surface facilities.
    
   • Suitable for zones 1 and 2 for gases in group IIC.
    
   • Temperature class T6 (up to 85°C).
    
   • "Explosion-proof enclosure" type of protection.
    
   • Gb protection level (high level for gases).
 
2. II 2D Ex tb IIIC T80°C Db IP66
    
   • Equipment for 21 and 22 (dusty areas).
    
   • Suitable for conductive dusts (IIIC).
    
   • Surface temperature up to 80°C.
    
   • "Dust-proof enclosure" type of protection.
    
   • IP66 degree of protection.

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4. Features in Ship Applications

There are three main areas where explosion-proof equipment is used on ships:

1. Cargo tanks and decks: Zones 1 and 2, where explosive vapor concentrations may occur.
2. Engine rooms: Especially zones 2 where fuel leaks occur.
3. Pipe systems: Zones 1 and 2 where explosive liquids and gases are transported.

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5. Explosion Proof Products in our Store

5.1. Lighting Equipment

• Footlight EPL56 100W, EPL56 200W, EPL56 400W: 100, 200 and 400 W reliable explosion-proof lamps for use in areas with gas or dust.

• Portable incandescent lamp CFS1: Ideal for temporary lighting, with bulb support.

5.2. Connection Elements

• DCJXH202-4 Ship Connection Box: For safe cable connections in explosion risk areas.

• DCTH202-4 Ship Socket and DCZH202-3 Ship Plug: Components for safe electrical connection.

• DCHH202-4 Ship Switch: For equipment control in explosion risk areas.

5.3. Control and regulation equipment

• LA5821-3Ex and LA5821-2Ex Explosion-proof push button box: Explosion-proof, compact remote control solutions.

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6. Recommendations for Equipment Selection

6.1. Consider Region Category

Clarify which zone (gaseous or dusty) the equipment is suitable for.

6.2. Check Markup

Make sure that the marking is appropriate to the areas, materials and temperature conditions on board.

6.3. Check Certificates

Ensure that the equipment has ATEX, IECEx or other international certifications; this guarantees reliability and safety.

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The explosion-proof equipment in our store is manufactured in accordance with international standards to ensure the highest level of safety on board ships. We offer products suitable for various hazardous areas and guarantee that our equipment complies with international requirements. Our experts are always at your disposal for consultation and equipment selection.