HAZARDOUS AREAS

 

IECEX Certification/ HAZARDOUS AREA DOSSIERS/ COMPLIANCE TO STANDARDS

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Lightning in Australia causes 5 deaths on average per year and millions of dollars in damage to infrastructure causing further significant losses due to production downtime.

 

Whilst it is important to understand the role of lightning and the risks to personnel, equipment and plant that lightning presents, it is also important to understand the types of lightning protection equipment that are suitable to be used in an hazardous area to reduce the risks associated with lightning.

 

Before installing any hazardous area electrical equipment, take the time to ensure that it is suitable for the specific hazardous area and that it complies with the appropriate Australian & New Zealand Standard,Code of Practice, Compliance Code, Occupational Health & Safety Act, Work Health and Safety Act and the Electrical Act.

 

FLAMMABLE LIQUIDS,GASES & VAPOURS

 

Check both the Certificate of Conformity (IECex or ANZex) and the equipment certification label for the appropriate:

               

Zone Classification (Zone Type - 0, 1 or 2)

Gas Classification (Gas Type - II, IIA, IIB & IIC )

Temperature Classification (T- Class - T1, T2, T3, T4, T5, & T6 )

Ambient Temperature Range (Amb) If it is not marked do not mount in the sun as it is only suitable for a range from -20 degrees to + 40 degrees

Special Conditions ( Vibration, UV, Corrosion, etc.)

 

COMBUSTIBLE DUSTS & FLYINGS

 

Check both the Certificate of Conformity (IECex or ANZex) and the equipment certification label for the appropriate:

         

Zone Classification (Zone Type 20, 21 or 22)

Cloud and Layer Ignition Temperatures (CLI)

Cloud Ignition Energy of the Combustible Dust (CIE)

Ambient Temperature Range (Amb) If it is not marked do not mount in the sun as it is only suitable for a range from -20 degrees to + 40 degrees

Special Conditions ( Vibration, corrosion, etc.)

 

VERIFICATION DOSSIER

 

It is the responsibility of the persons in control of the installation or parts thereof to ensure that a verification dossier is produced for every plant. The dossier is a record of how the installation complies with the relevant Australian & New Zealand Standards.

 

Clause 4.2 of AS/NZS60079.14:2009 and Clause 4.1 of AS/NZS60079.17:2009 cover the requirements for the verification dossier.

 

A Verification Dossier is required to correctly install or extend an existing installation in a hazardous area. It provides detailed information including but not limited to: diagrams showing the Zone, Gas Type, T Class, CLI, CIE, Amb, Special Conditions, classification and extent of the zone.

 

"IF IN DOUBT - REFER TO THE STANDARD or seek assistance from an authorised H CLASS INSPECTOR or Hazardous Area Specialist