Workshop on Lightning Protection and Earthing

Approximately lightning takes over 2000 lives a year all over the world and causes billions of dollars of equipment damage and loss of valuable economical time. Lightning is one of the most recurring natural events roughly estimated to strike 50 times each second all over the world. Extremely high voltage buildups and current values cause severe damage to objects exposed directly or indirectly to a lightning strike.

A properly designed lightning protection system can protect the intended object with quite a high efficiency. Accepted international standards provide a significant detailed description of designing such an effective lightning protection system.

The training programs cover all significant areas of designing an effective lightning protection system and share the broad and valuable experience of the speakers. All speakers are experts in their respective fields and will bring diverse experience in the practical application of designing and installing lightning protection systems.

Workshop

Workshop on Lightning Protection and Earthing is designed to cover four (04) significant areas of lightning protection; Surge protection, Structural Protection, Grounding and Bonding, and Measurements. Each session will be covered by a different speaker and each session is complemented with 20 minutes of Q & A session.

Detailed description of the content

DAY 1 SESSION 1 (Prof. Vernon Cooray)

Topic - Lightning Phenomenology (30 mints +10 mints Q&A)

1. General information on lightning
2. Lightning interaction with humans
3. Parameters important for lightning protection (against direct and indirect strikes)

DAY 1 SESSION 2 (Mr. Arno Kiefer)

Topic - Surge protection (1 hours + 10 mints + 1 hour + 20 mints Q & A)

1. Introduction
2. Source of disturbance
3. Risk and damage statistics
4. Functioning principals of SPDs
5. Maintenance
6. Applications

DAY 1 SESSION 3 (Mr. Hartono)

Topic - Structural Protection (1 hours +10 mints + 1 hour + 20 mints Q & A)

1. Risk assessment and introduction of structural protection
2. Application of Rolling sphere, protective angle, and mesh methods in designing of air termination network, down conductor system and their placement
3. Conventional and Non-conventional air terminals.
4. EMC concerns and placement of down conductor
5. Materials and installations according to the standards.
6. Special topics
1. Human safety (such as side flashes)
2. Protection of trees, archeological structures, and isolated important sites
3. Protection of oil storage tanks, solar PV farms, electric train systems, computer/data centers, satellite earth stations, etc.

DAY 2 SESSION 1 (Prof. Loboda)

Topic - Grounding and Bonding (1 hours +10 mints + 1 hour + 20 mints Q & A)

1. Understanding grounding and bonding according to the latest standards
2. Grounding system design example
3. Equipotential bonding concerns of an LP system
4. Soil improver mechanisms and practical applications
5. GPR concerns and implications of grounding system design
6. Materials selection and standards.
7. Special topics
1. Grounding in a troubled environment
2. Human safety concerns (touch and step potential)
3. Large scale groundings such as in substations
4. Integrating other grounding systems
5. Maintenance (such as corrosion)

DAY 2 SESSION 2 (Prof. William A. (Bill) Chisholm)

Topic - Measurements (1 hours +10 mints + 20 mints Q & A)

1. Role of earthing resistance in LPS considering wind turbine, overhead power, buried cable, telecom, and medical systems
2. Techniques for measuring or estimating earth resistivity
• Remote sensing
• Four-probe methods
• Three-probe methods
• Spatial variability and suitable log-normal statistical distribution
• Step and transient response in resistivity tests including CIGRE TB781 method results from Canada
3. Techniques for measuring or estimating earthing resistance
• Estimates using effective perimeter: a case study
• Predicted effects of interconnected electrodes including CIGRE TB275
• Clamp-on and directional test methods at 1 to 5 kHz
• Step response in earthing impedance tests
4. Importance of measuring surge impedance for LPS and available devices.
• Observed relations between earthing impedance and earthing resistance
• Observed effects of interconnected electrodes: adjacent towers closer than 150 m

For whom

The workshop is primarily intended for Technical personal involved in designing, installing, and maintenance of lightning protection and earthing systems. Anyone having a technical / Engineering background and in a related field such as insurance or administration of such facilities could also benefit from the discussions.

Registration

Registrations will be accepted from 14th November to 22nd November 2021. Details of registration can be found

Registration

Investment

100 USD per person (+ tax)

For more details contact us through,

Email: info@slprd.org

Phone: + 94 715 401 104