Hazardous Area Electrical Works
Mobile Automation can supply Engineers, Technicians and Electricians to carry out Hazardous Area Electrical works with an emphasis on safe work practices at all times.
Hazardous Area Electrical Works
Introduction
Hazardous area electrical work in Victoria requires specialized knowledge, certification, and strict adherence to safety standards due to the presence of flammable gases, vapors, dusts, or fibers. This work is regulated by Energy Safe Victoria (ESV) and must comply with both Australian and international standards.
Regulatory Framework
- AS/NZS 3000 (Wiring Rules)
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AS/NZS 60079 series (Explosive Atmospheres standards)
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Electricity Safety Act 1998 (Victoria)
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Electricity Safety (General) Regulations 2019
Hazardous Area Classification
Hazardous areas are classified into zones based on the frequency and duration of explosive atmosphere occurrence:
Gas/Vapor Zones
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Zone 0: Explosive atmosphere present continuously or for long periods
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Zone 1: Explosive atmosphere likely in normal operation
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Zone 2: Explosive atmosphere unlikely in normal operation
Dust Zones
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Zone 20: Combustible dust present continuously
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Zone 21: Combustible dust likely in normal operation
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Zone 22: Combustible dust unlikely in normal operation
The Mobile Automation team have extensive experience in Hazardous area electrical works, and follow strict procedures to ensure the safety of all personnel and equipment.
Licensing Requirements
In Victoria, electricians working in hazardous areas must:
- Hold a current Victorian A-Grade Electrical License
- Complete specialized hazardous area training
- Maintain current knowledge of relevant standards
- Register with Energy Safe Victoria for hazardous area work
Essential Safety Considerations
Equipment Selection
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All electrical equipment must be appropriately certified for the zone classification
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Equipment must have proper IP ratings for environmental protection
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Protection techniques must match the hazard type (gas/vapor/dust)
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Temperature classifications must be suitable for the specific hazardous materials
Installation Requirements
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Proper cable types and glands must be used
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Intrinsically safe barriers where required
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Appropriate earthing and bonding systems
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Separation of intrinsically safe and non-intrinsically safe circuits
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Proper labeling and documentation
Documentation Requirements
Before Installation
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Hazardous area classification drawings
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Equipment certification documents
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Installation design documentation
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Risk assessments
During Installation
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Installation checklist
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Visual inspection records
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Testing procedures and results
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Photographic evidence of critical installations
After Installation
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As-built documentation
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Verification dossier
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Maintenance requirements
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Emergency procedures
Maintenance and Inspection
Regular Inspections
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Visual inspections (quarterly recommended)
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Detailed inspections (annual recommended)
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Comprehensive testing (every 2-3 years)
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Documentation of all inspections and tests
Maintenance Procedures
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Only certified technicians to perform maintenance
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Hot work permits where required
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Proper isolation procedures
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Replacement parts must maintain certification status
Common Industries
Hazardous area electrical work in Victoria is common in:
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Oil and gas facilities
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Chemical processing plants
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Paint shops and spray booths
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Flour mills and grain handling facilities
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Pharmaceutical manufacturing
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Fuel storage and distribution
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Wood processing facilities
Emergency Procedures
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Clear emergency shutdown procedures must be established
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Emergency contact information must be readily available
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Evacuation routes must be clearly marked
Best Practices
- Always verify area classification before work
- Use proper PPE at all times
- Maintain comprehensive documentation
- Regular training and updates
- Follow manufacturer guidelines strictly
- Implement permit-to-work systems
- Regular audit of procedures and installations
Regular updates to knowledge and skills are essential as standards and technologies evolve. All electrical workers in hazardous areas should maintain close contact with industry bodies and regulatory authorities for the latest requirements and best practices. Mobile Automation can support all your hazardous area electrical works requirements.
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