Previous inspections had been completed intermittently, and documentation was inconsistent across different plant areas. The client required a structured, compliant Ex inspection programme to:
- Confirm ongoing compliance with electrical standards IEC 60079 Series
- Confirm ongoing compliance with non-electrical standards BS EN 80079 Series
- Identify deterioration or damage to Ex equipment
- Provide clear, auditable records for insurers and regulators
- Reduce the risk of ignition sources developing within potentially hazardous areas
The primary challenge affecting the client’s compliance stemmed from the harsh environmental conditions at the coastal location, including exposure to salty air, high temperatures, and direct sunlight. These factors contributed to the corrosion of Ex-rated equipment, while prolonged UV exposure caused the Ex-nameplates to fade.
To address these issues, we recommended the use of more durable materials for glands and fittings, such as stainless steel, to minimise corrosion and extend service life. Additionally, we advised implementing protective measures to shield the nameplates from direct sunlight, ensuring their legibility and maintaining compliance over time.
Scope of Work
The client specified the requirement for Close and Visual Inspection, although detailed inspection would be required at a future date.
Ex Inspections were completed for the following areas:
- Fuel storage and transfer areas (Zone 0, 1 & 2)
- Flammable cylinder and paint/solvent storage (Zone 0, 1 & 2)
- Wood Dust powder handling systems (Zones 20, 21 & 22)
The inspection scope included:
- Electrical equipment such as lighting, motors, pumps, junction boxes, instrumentation, and control panels
- Mechanical integrity applicable to Ex protection including pumps, flow meters, etc.
- Verification against site hazardous area drawings and equipment schedules
Inspections were carried out in accordance with:
- Electrical Standards IEC/BS EN 60079-14:2024 & IEC/BS EN 60079-17:2023
- Non-electrical Standards BS EN 80079-36:2016 & 80079-37:2016
- Site-specific ignition risk assessment and permit-to-work procedures