AEMT Guide - Introduction to Ex repairs

Introduction

• Importance of proper maintenance and repair of Ex-rated equipment
• Potential consequences of improper repairs (e.g., Deepwater Horizon, Piper Alpha)

Legislation and Standards

• Overview of ATEX Directive and IECEx scheme
• Specific requirements for hazardous zones

Explosion Protection Techniques

• Different protection techniques for various zones:
  • Ex d: Flameproof protection
  • Ex t: Dust protection
  • Ex e: Increased safety protection
  • Ex p: Pressurised enclosures

Design Criteria for Ex-Rated Equipment

• Differences between Ex-rated and non-Ex-rated equipment
• Importance of controlling surface and operating temperatures
• Higher IP ratings to prevent ingress of hazardous substances

Repairing Ex-Rated Equipment

• Complexity and involvement in repairing Ex-rated equipment
• Roles and responsibilities:
  • Responsible Person: Ensures compliance, supervises operatives, maintains records
  • Operatives: Engineers and technicians performing repairs

Training and Certification

• Need for specialised training for Ex repairs
• AEMT training courses and their benefits
• Importance of staying updated with standards and legislation

Traceability and Documentation

• Importance of maintaining detailed records for ten years
• Documentation requirements:
  • Drawings
  • Electrical and mechanical measurements
  • Written agreements between user and repairer

The Ex Register

• Benefits of choosing a repair facility from the AEMT Ex Register
• Requirements for inclusion in the register:
  • ISO 9001 quality control system
  • Calibrated equipment
  • Trained and competent personnel

Summary

• Emphasis on the critical nature of correct repairs in hazardous areas
• Necessity of ongoing investment in training, tools, and systems
• Ultimate responsibility for compliance and safety rests with the end-user

For more detailed information and to find accredited service centres, visit the AEMT Ex Register at bit.ly/AEMTEx.