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  Hazardous Area Electrical

Hazardous Area Electrical (UEENEEM001B, UEENEEM002B, UEENEEM004B, UEENEEM006B, UEENEEM009B, UEENEEM010B, UEENEEM011B and UEENEEM013B Accredited)

 

Many liquids, gasses and dusts which are generated, processed, handled and stored in industry are combustible and they may become explosive given the right conditions. If ignited they may burn rapidly and with considerable force.Hazardous Area Electrical

 

Figure 1 below depicts the “Infernal Triangle” which shows the three elements that must be present for a flame or explosion to take place

      Figure 1
The use of electrical equipment in Hazardous areas is necessary to facilitate various processes to take place depending on the need and outcome required in a manufacturing or other process.

 

As Electrical Contractors it is our role to ensure that all electrical equipment installed in Hazardous areas do not pose a source of Heat or ignition and Australian Standards require that all hazardous area electrical works are supervised or carried out by suitably accredited personnel. 

 


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Hazardous Area Cable Gland Selection

 

Cable and Cable gland selection for a particular installation are some of the most basic steps in ensuring the integrity of a hazardous area installation and if this task is not carried out accurately the whole installation may be rendered non compliant.

 

Cable Gland selection is set out clearly in Figure 2  below as set out in AS/NZS 2381.2:2006

                                            Figure 2

Other Measures and factors that must be considered are

 

·         Zone Classification ( i.e. Zones 0,1,2 or Zones 20,21,22 )

·         Increased Safety (Ex e)

·         Intrinsically Safe Circuits & equipment (Ex i)

·         Special Protection (Ex s)

·         Flameproof Enclosures (Ex d)

·         Encapsulation (Ex n)

·         Pressurized rooms and enclosures (Ex p)

·         Ventilation (Ex v)

·         Powder Filling (Ex q)

·         Oil immersion (Ex o)

·         IP Rating

·         Mixed Techniques (Ex edmq IP56 for example)

 

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MOLEC Electrical Contractors Pty Ltd Can ensure that your installation is Safe and compliant with both Australian Standards and local codes

 
To find out how we can help you, please call us on (03) 93151200 or click here to contact us

 
 
 
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