Earthing, Lightning & Surge Protection Course
About This Class
- 13 – 15 May
- Live Online Training
- 15 Lessons
Earthing and protection of industrial and commercial electrical systems against lightning continue to be a very important area of study. Any engineer involved in power supply networks ought to have some working knowledge of earthing and its role in ensuring safety of equipment and people to avoid mistakes that could lead to fatalities and cessation of business. For proper operation and maintenance of electric power substations it is important to understand and maintain correct earthing systems in the utility substation and in industrial electrical networks.
This 3-day course will be covering earthing, surge and lightning protection for power and electronic systems, telecommunications and IT systems.
Local Fee
R 17,999
International Fee
$ 1,300
Download Brochure
Some of what you will learn:
- Principles of design, testing and maintenance of earthing systems and equipment
- Hazards and safety precautions associated with earthing
- Requirements and procedures for electrical safety compliance standards
- New methodology for carrying out lightning risk assessments on distribution lines
- The role of earthing in the mitigation of noise in electrical systems
- Soil characteristics, resistivity and structure in relation to the design of earthing systems
Day 1
▪ Reasons for Power Systems Earthing
▪ Reasons for Equipment Earthing (Bonding)
▪ Touch and Step Potentials
▪ Power System Earth Systems (LV, MV and HV)
▪ Earthing and International / National Standards
▪ Minimum requirements for roof and ground conductors
▪ Connectors and fittings
▪ Simplified ground fault location
▪ Improved system and equipment fault protection
▪ Reduced maintenance time and expense
▪ Greater safety for personnel
▪ Reduction in frequency of faults
▪ Unearthed neutral system
▪ Solid neutral earthed system
▪ Resistance neutral earthing system
▪ Resonant neutral earthing system
▪ Transformer earthing
▪ 1 mA: Threshold of perception
▪ 1 mAto 6 mA: Let-go currents
▪ 9 mA to 25 mA: Painful, difficult to release energized objects
▪ 25 mA to 60mA: Muscular contractions, breathing difficult
▪ 60 mA to 100mA: Ventricular fibrillation
Day 2
▪ Objectives
▪ Resistance Requirements
▪ Soil Resistivity
▪ Measurement of Soil Resistivity
▪ Types of Earth Electrode Systems
▪ Resistance Properties
▪ Measurement of the Resistance of Earth Electrodes
▪ Electrode Enhancement
▪ Cathodic Protection
▪ Lightning Protectors
▪ Resistance and Surface Potential Distribution of Typical Earth Electrode Construction
▪ Constructional aspects of Earths of Earthing Electrodes
▪ Wiring and grounding for safety and performance
▪ Wiring and distribution systems
▪ Dedicated and derived neutral systems
▪ Grounding and bonding systems
▪ What is static electricity and how is it generated?
▪ Examples of static charge build up and its dangers
▪ Energy of spark due to static electricity
▪ Ways of controlling static build up
▪ Risk assessment and preventive measures
▪ Wenner method
▪ Schlumberger method
▪ Soil resistivity variability
▪ Physics of Lightning
▪ Electrical Surges due to Lightning
▪ Lightning Waveforms
▪ Lightning Protection Systems (Evaluation and Selection)
▪ Lightning Protection of Electricity Supply Systems
▪ Lightning Protection for Buildings
Day 3
▪ Causes and mitigation of surges
▪ Ways by which surges couple into electrical circuits
▪ Principles of surge protection and commonly used devices
▪ Graded surge protection
▪ Relative merits of different types of surge protection devices for sensitive instrumentation
▪ Surge protection of telemetry and data communication systems
▪ Power conditioners
▪ Uninterruptible power systems
▪ Power quality alternative sources
▪ Wiring and Grounding for Power Quality
▪ Electrical Environment and Causes of Power Quality / Noise Disturbances
▪ PQ and Grounding for PQ
▪ Typical Wiring and Grounding Problem
▪ Minimize Electrical Interference
▪ Shielding Methods
▪ Frequency and Power Quality
▪ Effects of Harmonics in Electrical Systems
▪ Minimize Harmonic Interference
Who should attend
This 3-day training course is specifically designed for:
- Electrical Engineers & Technicians
- Engineering Managers
- Project & Design Engineers
- Maintenance Engineers
- Power System Protection & Control Engineers
- Instrumentation & Control Engineers
- Electrical Design Consultants
- Facilities Managers
- Building Service Designers
- Plant Operators
- Government Safety Regulators
- Inspectors
Professor Walker
Professor Walker is the director of a company that specializes in consultation on High Voltage insulation testing as well as the supply of test equipment for High Voltage applications. He is a Doctor of Technology graduate from the Vaal University of Technology, completed in 2005 with a thesis titled “Diagnostic Evaluation of Water Tree Aged XLPE-Insulated Cables”.
He started with a Higher National Diploma in Electrical Engineering acquired at Vaal Triangle Technikon where he later worked as a lecturer in the Department of Power Engineering after completing his Bachelor of Technology Degree. In 2005 he was appointed an Associate Professor at Vaal University, and subsequently the head of the Institute for High Voltage Studies, a position he held until his retirement the following year.
Professor Walker has over the years of acquiring field and academic experience; he also published a number of articles and journals on electrical power systems and has presented a number of papers at local and international conferences.
Note: Professor’s full professional Biography is available on request.
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