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Diesel Engine and diesel generator for Zone 2 Hazardous Areas

Diesel engines operating in Zone 2 hazardous areas present a risk of explosion. The flame protected engines used by Hiersun Power operate below 200°C. This lower operating temperature, combined with additional shut down features,
means the equipment can be used in areas where there is a strong potential explosion hazard.
Availability:
Quantity:
  • HZ20-HZ500

  • Hiersun

  • 20kva-500kva

  • 50HZ/60HZ

  • 400V/480V

Diesel Engine and diesel generator for Zone 2 Hazardous Areas

Atex Generator and  Atex Diesel engines operating in Zone 2 hazardous areas present a risk of explosion. The flame protected engines used by Hiersun Power operate below 200°C. This lower operating temperature, combined with additional shut down features,

means the equipment can be used in areas where there is a strong potential explosion hazard.

And with the addition of the available Zone 2 explosion protection equipment, the engine system is certified to the Zone 2 hazardous location requirements detailed in the ATEX directive 94/9/EC.

Zone II power pack


Diesel Engine and diesel generator for Zone 2 Hazardous Areas Components include:

  • Engine – Cummins or Perkins engine with water-cooled turbo housing and exhaust manifold keep engine surface temperature below 200ºC (392ºF).

  • Cooling System – Two-pump, two-loop cooling system for optimal engine performance and ease of installation.

  • Fuel System –  fuel system optimizes combustion for increased engine performance and fuel-efficient operation.

  • Exhaust System – Water-cooled exhaust gas heat exchanger

  • Air Inlet – Automatic air inlet shutdown available  to shut down the engine in the presence of a flammable gas mixture.

  • Emission Certification – EPA/CARB Tier2 or Tier 3, Marpol Tier 3. 

  • Control System – Electronic components certified to ATEX Directive 94/9/EC Group II, Category 3G requirements.

  • Corrosion Protection – Uses the  Corrosion Protection package including e-coated brackets, pre- and postassembly

        block and head priming and stainless steel plugs.

About  Zone  Hazardous Areas- Atex diesel engine, Atex Generator 

Zones are used to define the probability of presence of flammable materials

Groups classifies exact flammable natures of materials Protection Types are used to denote the safety levels of the devices. Equipment approved receives temperature codes indicating maximum surface temperature of the equipment.

The zone defines the probability of hazardous material being present in an ignitable concentration in the surrounding atmosphere.


Zone 0

Area in which an explosive gas-air mixture is continuously present or   present for long periods.

Zone 1

Combustible or conductive dusts are present. Area in which an explosive   gas-air mixture is likely to occur for short periods in normal operation.

Zone 2

Area in which an explosive gas-air mixture is not likely to occur, and   if it occurs it will only exist for a very short time due to an abnormal   condition.

Protection Types-Atex diesel engine, Atex Generator 

Different protection techniques are used to address the hazardous zones.


EX 


Zone

Ex d

Flameproof (Explosion proof) Enclosure

1, 2

Ex e

Increased Safety

1, 2

Ex ia

Intrinsically Safe

0, 1, 2

Ex ib

Intrinsically Safe

1, 2

Ex o

Oil Immersion

2

Ex p

Pressurized Apparatus (Purged Apparatus)

1, 2

Ex q

Powder Filling (Sand Filling)

2

Ex m

Encapsulation

1, 2

Ex n or Ex N

Non incentive or/and normally no sparking circuits

2

Temperature Codes-Atex diesel engine, Atex Generator 

A mixture of air and hazardous gases may ignite by coming in contact with a hot surface. An ignition depends on surface area, temperature and the concentration of the gas.

Certified equipment are tested for maximum temperature ratings by approval agencies. Equipment for Group II receives a temperature code indicating the maximum surface temperature.

Temperature Code

oF

oC

T1

842

450

T2

572

300

T3

392

200

T4

275

135

T5

212

100

T6

185

85

The coding is based on a 104 oF (40 oC) ambient temperature.

Groups-Atex diesel engine, Atex Generator 

Electrical equipment are divided into two groups where Group I covers equipment used in mines and Group II covers all other applications. Group II is subdivided into three subgroups where the specific hazardous materials within each group can be found in CENELEC EN 50014.


Group I For application in below ground installations (mines) where methane (firedamp) and coal dust may be present.

Group IIA For application in above ground installation where hazards due to propane may exist.

Group IIB For application in above ground installations where hazards due to ethylene may exist.

Group IIC For application in above ground installations where hazards due to hydrogen or acetylene may exist.


Flameproof (Explosion proof) Enclosure- Atex diesel engine, Atex Generator 

All electrical circuits are enclosed in a house strong enough to contain any explosion or fire that may take place on the inside.

Increased Safety

Electrical circuits incorporates special measures to reduce the probability of excessive temperatures and the occurrence of arcs and sparks in normal service.

Intrinsically Safety

The electrical energy available in circuits and equipment, is limited to a level to low to ignite the most easily ignitable mixtures in a hazardous area.

Intrinsically safe barriers, as Zener, are installed in the circuit to limit current and voltage in the hazardous areas to avoid sparks or hot spots under fault conditions.


Hiersun Engineers are trained and certified in the latest Power solution knowledge for each market and are able to assist you with engine integration into your specific application. Our engineers and sales representatives will spend time with you to understand your application and provide you with a custom solution to best fit your requirements. Customers benefit from Hiersun Power extensive experience and product knowledge of a variety of markets and can assist you with new product or repower applications.


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