When confronted with a reallife lightning protection problem, it is helpful to bear an ideal next best thing to a metal box solution in mind, in order to reach the closest practical approximation to this. In buildings fitted with lightning protection systems, the lightning current causes a voltage drop at the earthing resistor. External lightning protection current lightning protection standards. Code of practice for the protection of building and allied structures against lightning. Lightning protection international pty ltd lpi is a fully australian owned manufacturer and supplier of direct strike lightning protection, transient voltage surge suppression, and earthing grounding. Finally, the impact of lightning is examined and simple techniques for minimising its impact are described.
Poor grounding practice can be the cause of continual and intermittent difficulttodiagnose problems in a facility. A reliable lightning protection system lps requires installation of earth termination and effective bonding system. The earthing and lightning protection systems shall be suitable for installation on the transmission system in accordance with the following eirgrid network parameters. Fundamentals of lightning protection systems page 1 of 14 fundamentals of lightning protection systems, edition 1c september 2011. Earthing equipotential bonding lightning protection exothermic welding. Earthing, lightning and surge protection seminar earthing, lightning and surge protection seminar di s counts earl y bird offer. Conductors air termination conductor network lightning protection accessories. Its a matter of providing an alternative path for the lightning current to flow to ground and ensure that.
Pdf essential requirements for earthing system determining the. Furse offer a renowned total solution for earthing and lightning protection. Any conductor, normally copper or aluminium that is the connection between the equipment and the earth mat. A proper lightning protection system consisting of air terminal, down conductor, earthing design is very important to ensure increased protection of a building against lightning and its effects. Combining over 100 years technical expertise with an enviable reputation for innovation, quality and service, furse is uniquely placed to provide a total solution to all your earthing, lightning and transient overvoltage protection needs. Bs en 62305 earthing systems earth rods earth bars. On completion of the installation the following isolated and combined testing measurement and or checks has to be made and the results. The minimum dimensions specified in these standards are the. The importance of lightning protection 6 7 key considerations identifying the need for both external and internal lightning protection for effective cover against lightning strikes technical design service 8 9. Earthing and lightning protection systems pdf document. Lightning protection system design and installation. Lightning protection systems are the modern development of the innovation pioneered by benjamin franklin. During a storm, when propagation field conditions are favorable, an opr ese air terminal will generate an upward leader.
Earthing systems earthing general introduction an earthing system is a need in any electrical system to protect from the adverse effects of lightning, leakage currents, insulation failures, short. This approach to lightning protection is now fully endorsed by the iecbs en. Today, lightning protection systems are in use on thousands of buildings. This handbook is written to assist in the understanding of. Without external protection, equipment housed in the building may provide the easiest path to earth for lightning currents via sideflashing where the lightning. Soil resistivity testing lightning and surge technologies. Southern sun newlands, cape town benefits of attending overview of legislationemr 2011 related acts and. It contains three procedures,which specifically refer to each one of the three topics covered. Principles of electrical grounding john pfeiffer, p. Combining over 100 years technical expertise with an enviable reputation for innovation, quality and service. Nfpa 780 standard for the installation of lightning protection systems. Furse is a world leader in the design, manufacture and supply of earthing and lightning protection systems. Lightning protection design, earthing system design lightning protection for buildings design duration. Abb furse iet wiring regulations read all about the requirements laid out by.
A practical guide to lightning protection in australia and new zealand author. Lightning protection zone concept the lightning protection zone concept allows planning, implementing and monitoring protection measures. Maximum earth fault short circuit level shall be taken to be the 3 phase short circuit level rms outlined in eirgrid general functional specification xdsgfs00001. Furse was acquired by the abb group in 2012, and through the wider distributor. Structural earthing and lightning protection systems for. Lp consultants international pvt ltd 216,841 views 5. Practical earthing, bonding, lightning and surge protection. Earthing and lightning protection systems arthur flury. The products are produced and tested under stringent iso quality control measures. A practical guide to lightning protection and australia and nz. This is a discussion of the basic principles behind grounding systems and how grounding is related to safety and the effective operation of circuit.
System earthing arrangements in lv are mainly concerned by common mode faults which occur most frequently in loads and cables. Everdo earthing provides a market leading comprehensive range of services for the design, supply, installation and maintenance of earthing, lightning and surge protection systems. Plan lightning protection and earthing systems professionally and efficiently on your personal pc. Kalister copper bonded grounding rods are made by molecularly bonding 99.
Know your earthing and lightning protection best practice. Xdsgfs12001r2 earthing and lightning protection uncontrolled when printed page 2 of 37 xdsgfs12001r2 1 scope 4 2 specifications and standards 4 2. A risk assessment based on actual lightning exposure design of the air termination network and downconductors di fth tht i ti t k d thdesign of the earth termination network and earth electrodes. Common methods for earthing and lightning protection. Lightning is one of natures most powerful and destructive phenomena take a look as to why protection against it, is so important. Use the flury tool box with the complete flury product range. Earthing and lightning protection providing a total solution structural lightning protection from furse air termination systems including air rods and strike plates to capture lightning strikes, through to our comprehensive range of down conductors and lightning protection components which channel lightning energy safely. Our products are manufactured and tested in strict. Rohit narayan, be electrical, mba tech mgmt, mieaust background the current standard for lightning protection in. Ds202de dehn uni earthing clamp saddle clamp pdf only. Design guidelines for proper lightning protection system. This is a discussion of the basic principles behind grounding systems and how grounding is related to safety and the effective operation of circuit protection devices such as fuses and circuit breakers. The standards in the united states for lightning protection systems are the national electrical code nec, the national fire protection association 78, lightning protection code nfpa 78, and. Grounding and surge protection for telecommunications and it systems are examined in detail.
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