410-2036/01 – Lightning Protection System for Buildings (SOBB)
| Gurantor department | Department of Electrical Power Engineering | Credits | 4 |
| Subject guarantor | Ing. Petr Orság, Ph.D. | Subject version guarantor | Ing. Petr Orság, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 2 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2024/2025 | Year of cancellation | |
| Intended for the faculties | FEI | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Students will learn to understand the structure and content of an external influences determination protocol and develop an operating procedure for an assessment area. They will be able to practically design and size an external and internal lightning protection system. They will learn both to design the earthing system and earthing of buildings and to implement protection measures inside buildings, including the design and sizing of surge arresters.
Teaching methods
Lectures
Individual consultations
Tutorials
Summary
The course deals with the characterization of space according to external influences for the purpose of electric shock assessment, which is important for the design of electrical distribution, electrical equipment and technologies and their revision. It also deals with the broad issue of the design of lightning protection of buildings and structures and the risk analysis required for their level of protection with respect to lightning hazards. The course also includes calculations related to the design and sizing of external and internal lightning protection systems, familiarisation with supporting software tools for complex design and sizing of lightning protection and experimental measurement of lightning protection.
Compulsory literature:
[1] DEHN. Lightning Protection Guide [pdf]. 3rd updated edition. DEHN + SÖHNE, 2014. Available from: https://www.dehn-ua.com/en/lightning-protection-guide
Recommended literature:
Way of continuous check of knowledge in the course of semester
• Continuous verifying of student knowledge in the exercises in a form of debate and inquiries to achieve student active participations in study process. Identify, deduce and search of problem solving and their interpretation by students.
• Tests
• Term work and projects on a given theme on the basis of selection, investigation, ordering and final compilation of facts and their processing into final form of given theme.
E-learning
Other requirements
There are no other requirements for the student.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1. External influences, standards and related legislation, determination of spaces according to the influence of external influences, connection to design and electrical inspections. Normal and abnormal external influences acting on an electrical installation or electrical equipment (EZ), including their evaluation.
2. Structure and content of the protocol for the determination of external influences, operating rules, requirements of TIČR and SÚIP. Relation of the protocol to electrical equipment inspections. Composition of the committee for the preparation of the protocol for the determination of external influences, requirements. Methods of recording external influences in the protocols, responsibility.
3. Design of electrical distribution or electrical equipment with regard to the determined external influences. Requirements for electrical wiring in accordance with the provisions of the Decree on technical requirements for buildings. Issues in the design of electrical installations, EZ in terms of products used by the layman. Classes and codes of external influences, tables.
4. Lightning protection, standards and related legislation, link to the stages of project documentation.
5. Lightning and its effects, atmospheric phenomena, lightning parameters, direct and indirect lightning strikes, induced surges.
6. Design, installation, inspection and maintenance of lightning protection systems according to applicable standards, identification and analysis of risks, classification of buildings according to protection class.
7. Design of external lightning protection system, types of lightning arresters, methods of design of arresting system, arresters, shielding.
8. Design and implementation of protective measures to prevent injury to persons or animals by touch or step voltage according to the standard, earthing and earthing.
9. Design of the internal lightning protection system, lightning protection zones, bonding, electrical insulation, surge protection, principles, operation and verification of surge protectors, surge arrestor ratings and sizing.
10. Software tools for comprehensive design and sizing of lightning protection.
11. Selection, placement, arrangement and coordination of surge protectors, protection of electrical and electronic systems against overvoltage and electromagnetic interference.
12. Protection of inverters and PV plants against lightning.
13. Protection of bus systems and IT networks.
Exercise:
1. Determining space by external influences.
2. Establishing the operating rules of the school laboratory.
3. Assignment and solution of the 1st semester project.
4. Stages of project documentation related to lightning protection.
5. Calculation of the electrodynamic force for a direct lightning strike to a building with external lightning protection and induced surges.
6. Calculation of the risk to the object (house) due to lightning strike.
7. Design and calculation of an external lightning protection system for a given type of roof of a building (house) by the rolling ball/protective angle method.
8. Design and calculation of the ground system of the given object (family house).
9. Design and calculation of the internal lightning protection system for a given object (family house) for direct and indirect lightning strikes.
10. Assignment and solution of the 2nd semester project.
11. Design of lightning protection for a given object using a software tool.
12. Experimental measurements of earth resistance, lightning conductor earth resistance and surge protectors.
13. Credit test.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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