Section 3: Earthing Layout and MALZ (Part 1 & 2)

Categories: Earthing Design
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About Course

This course provides a comprehensive understanding of Earthing Layout and Minimum Approach Limit Zone (MALZ), focusing on their critical role in electrical safety and system reliability. Participants will learn the principles of effective earthing design, methods for planning and implementing earthing layouts, and the importance of maintaining safe touch and step potentials in electrical installations.

Apply MALZ concepts to practical earthing layouts

 

        Click Here Course Video

 

The course also introduces MALZ, explaining safe working distances around live electrical equipment, risk assessment, and compliance with relevant electrical safety standards. Through practical examples and real-world scenarios, learners will develop the skills needed to design safe earthing systems, identify hazards, and ensure protection of personnel and equipment in substations and electrical networks.

 

Practical Focus

  • Step-by-step example of earthing layout optimization
  • Comparison of before/after MALZ results

 

Suggested Diagrams

  • Earthing grid before improvement
  • Earthing grid after MALZ optimization
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What Will You Learn?

  • By the end of this course, you will be able to:
  • Understand the fundamentals and purpose of earthing (grounding) systems
  • Identify different types of earthing and their applications
  • Design and interpret earthing layouts for electrical installations and substations
  • Calculate and evaluate touch and step potentials for safety
  • Understand the concept of Minimum Approach Limit Zone (MALZ)
  • Apply safe working distances around live electrical equipment
  • Identify electrical hazards and assess risks related to earthing and MALZ
  • Ensure compliance with relevant electrical safety standards and codes
  • Implement best practices for protecting personnel and equipment
  • Analyze real-world scenarios to improve electrical safety and system reliability
  • This course will equip you with both theoretical knowledge and practical skills essential for safe electrical design, installation, and maintenance.

Course Content

Developing an earthing layout from site data

MALZ evaluation for equipment areas and walkways

Effect of crushed rock (surface resistivity) on MALZ

Iterative improvement of earthing layouts

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