None of these systems claims to protect against 100% of the possibility of a lightning stroke arriving near protective area. Well also look briefly at personal lightning protection. Basic design specifications for lightning protection systems. Lightning protection initially as part of an nfpa task force, since disbanded assembled for the purpose of responding to the nfpa standards committee decision 0030, specifically the request for technical substantiation of the lightning protection techniques and practice contained in modern lightning protection standards. Lightning pdf professional free version download for pc. The lightning protection institute is a nationwide notforprofit organization founded in 1955 to promote lightning protection education, awareness, and safety. Talk to your electrical engineer about appropriate risk assessment. The synergy of these mergers has positioned erico as the largest global supplier of lightning protection solutions and productsunder the trade names. Erico facility electrical protection the company erico was formed in 1903 as the electric railway improvement company. Nlsi promotes proactive defenses to mitigate the effects of lightning hazards. Thousands of trees are struck by lightning every year. These electrons could be lost in less than an hour unless the supply is continually replenished. Metal electrical cabinets in lightning protection zone 1 should be regarded as lightning protection zone 2 internally.
Requirements for the the safety of people staying at work, home etc. The lightning protection system must be solidly and permanently grounded. How to protect your house from lightning premier power inc. Poor or high resistance connections to ground are the leading cause of lightning system failure for each one of these systems. The eritech system 3000 is an integral part of the erico six point protection plan for total facility protection, providing the facility owner or design engineer an efficient method for lightning discharge capture combined with a controlled means to convey. Fundamentals of lightning protection systems page 1 of 14 fundamentals of lightning protection systems, edition 1c september 2011. The author examines the physical behavior of lightning, various types of lightning damage, the role of lightning detection and warning in effective protection, as well as options for deflecting or eliminating lightning. All thunderstorms produce lightning and are very dangerous. Materials used shall be resistant to corrosionmaterials used shall be resistant to corrosion aa coppercopper bb copper alloyscopper alloys cc aluminumaluminum i. In order to design an effective lightning protection system with franklin rods or capturing meshes, the following rules shall apply. How to protect your house and its contents from lightning.
Chapter 2 lightning protection design, engineering, acquisition. In 1938 erico developed the cadweld exothermic welding process which has found industry wide acceptance as the ultimate electrical connection. Pdf lightning protection of overhead power distribution lines. A lightning protection system consists of numerous components that are constructed from highlyconductive copper or aluminum alloys, and that is where we come in. Lightning protection for a house or building usually consists of 3 components. For the purposes of this worksection the definitions given in as. A practical guide to lightning protection in australia and new zealand author. Active lightning erico system 2000 protection system conventional lightning protection system the six point plan of protection from erico capture the lightning strike.
The answers, however, to the previous 10 questions are equally important in the assessment of the need for lightning protection. An interesting survey of the costs of various types of lightning damage can be found on the first 3 or 4 pages in. Reviewed in the united states on december 24, 2012. In addition to these, there may be legislation or rules of each country that must be taken into account. The lightning protection international standard prof. Lpi started promoting lightning protection education, awareness and safety in 1955.
Lightning protection for facility operational continuity requires attention to combinations of. Sites above marked with the contain pdf copies of this application guide. Enhanced protection system the nvent erico system 3000 is a technically advanced lightning protection system. In the real application of lps, there is no known method that can be providing 100% safety protection against the lightning strikes. Its membership is comprised of engineers, manufacturers, contractors, scientists, architects, and safety directors. The ieee surge protection devices committee spdc has been writing. The basis of conventional lightning protection technology.
You can follow all the rules and still lose equipment in a severe storm. General principles since it is impossible to avoid a lightning strike, the application of lightning protection measures must be considered. Physical damage to structures and life hazard software for design and calculation of lightning protection systems when designing lightning protection systems, various parameters must be taken into account. If you hear the sound of thunder, then you are in danger from lightning. Design of lightning protection systems dehnsupport toolbox software. The unique features of this system allow optimum performance, flexibility of design, and overall costeffective installation. Reliable protection of industrial and commercial operations and personnel demands a systematic and comprehensive approach to minimizing threats caused by strikes, and nvent erico can. We develop and manufacture these components so installation specialists can effectively protect businesses and homes. Dec 10, 2017 download lightning pdf professional for free. The nvent erico lightning protection selection calculator is now part of our worldwide electronic catalog. Its a great conductor of electricity, so do not take a shower, wash your hands, wash dishes or do laundry. The unavailability data of lightning strikes occurrences and its frequency at telecommunication station.
Study of lightning safety distance using rolling sphere method. Lightning protection for facility operational continuity requires attention to combinations of defenses. Professional surge protection for building installations. Erico manufactures, using the eritech trade name, lightning protection systems in full accordance with more than twelve national and international standards, as well as nonconventional systems for applications where these. Pdf lightning protection of overhead power distribution. Th e failure rate of the surge pr otective devices has also to be considered in the costb enefit analysis.
Installations where lightning protection is highly. Our systems are tested daily by mcafee and secured by ssl. Types of lightning protection systems lps electrical knowhow. Ingesco specializes in the production and design of lightning rod protection, surge arresters and prevention products. The file size of the latest downloadable setup file is 30 mb. Article lightning protection pdfs lightninfg eliminators. The level for lightning transients in lightning protection zone 2 is 0. Developing a consumeroriented guide on surge protection. Lightning protection theory schirtec lightning protection. Electrical code, nfpa 70 and installation requirements. Lightning protection of pv systems request pdf researchgate. Much of this lecture and the next are adapted from material in umans the art and science of lightning protection cambridge univ. Jan 01, 2000 abstract early streamer emission ese lightning protection systems are a relatively new approach to the perennial problem of lightining damage, and these systems may hold promise for a more effective protection against lighting. Other than in 5 67, in each paper lightning has been mentioned only once or few times, mostly to say that it is one of the natural hazards.
Protection of structure from lightning lightning protection systems, essentially lightning conductors protection of structures and voltage surge protectors protection against overvoltage, offer effective protection if they are. If you have any questions or need more information contact nvent or refer to the nvent erico protection handbook. A m p d s l ightning p rotection electro specialties. Copper lightning protection materials shall not becopper lightning protection materials shall not be installed on aluminum roofing, siding or otherinstalled on. As was stated many times in the past, the conventional lightning protection philosophy, the methods and their.
Lightning is a bright flash of electricity produced by a thunderstorm. Lightning protection for comrex equipment lightning protection is not an exact science. The planet earth is simi lar to a huge battery continuously losing electrons to the atmosphere. Lightning interception non conventional lightning protection. National lightning safety institute provides expert training, consulting, education, videos, and witness service on lightning safety for buildings and critical facilities, both government and commercial. Lightning strikes and the dangerous overvoltage surges caused. Dimension a in both figures is 20 or 25 feet and is the maximum spacing recommended by the nfpa between lightning rods.
Do not use electric equipment like computers and appliances during a storm. Pdf lightning protection scenarios of communication. No more complicated calculations with dehnsupport toolbox 2. Nfpa 780 and ul 96a are application standards governing satisfactory installation of an lps. Lightning protection system design and installation. Bonding, grounding and surge protection by richard kithil, president and orlando alzamora, vicepresident national lightning safety institute nlsi 1.
A m odern p erspective on d irect s trike l ightning p rotection by dr. This is a medium to advanced level book, very suitable for science, electric, physics or electronic students written by the world lighting authority dr. For the most uptodate product features and benefits, specifications, certifications and associated downloads for all products used in lightning protection applications, please visit our lightning protection home page. Prevention and protection against lightning ingesco. Many decades of experience shows that by combining franklin rods located at critical points on a structure with a proper down conductor and grounding system the damage due to lightning could be reduced significantly 1. Lightning strokeslightning strokes at i llihtia typical lightning lightning stroke shape stroke can last for over one second gg p over one second and consist of many strokes discharges, sometimes over ten, each with aneach with an arcchannel current of between 2ka and 200ka 1% of200ka 1% of strokes exceed 200ka. Houston chroniclefuel fix some companies dont wait for lightning to strikemarch 20. These trees will have varying degrees of damage ranging from complete shattering and destruction of the tree, to a slow lingering death, to virtually no apparent. With decades of research into the phenomena of a lightning strike, pioneering isolated downconductor technology.
Early streamer emission lightning protection systems. Ul 96 and ul 467 are product standards for lightning protection components. A practical guide to lightning protection and australia and nz. If you continue to use this site we will assume that you are happy with it. Lightning protection national lightning safety institute. The random nature of lightning means the role of statistics is quite important in determining the need for protection. Spd, protection of equipment in existing structures. Developing a consumeroriented guide on surge protection thomas key epripeac 10521 research dr. It provides a comprehensive and personalized service. The substation earthing layout design shall identify lightning spire and lightning shield wire placement whilst maintaining the required access and safety clearances in.
Capture the lightning strike to a known and preferred attachment point using a purposedesigned air terminal system. Lightning protection, grounding, equipotential bonding and surge protection are all interdependent disciplines and the focus of the nvent erico brand of facility. The lightning protection industry began in the united states when benjamin franklin postulated that lightning was electricity, and a metal rod could be used to carry the lightning. Pdf lightning protection scenarios of communication tower. During the 1970s, erico pioneered the development and standardization of the copper bonded steel grounding. Lightning protection systems with nonradioactive ionization device. We use cookies to ensure that we give you the best experience on our website. A full listing is available in the facility electrical protection catalog or the system 2000 lightning. The lightning protection ground should be connected to the main building ground and any nearby buried metallic items. This paper attempts to separate the desired protection practices from folklore and marketing hype.
This books should be accompanied by the others books. Request pdf lightning protection of pv systems lightning strikes can affect photovoltaic pv generators and their. Rohit narayan, be electrical, mba tech mgmt, mieaust background the current standard for lightning protection in australia and new zealand is asnzs 1768. This paper provides comprehensive analysis on the lightning protection scenarios in 48 communication and broadcasting towers situated in similar isokeraunic contours in sri lanka at 79 81 east. Early streamer emission ese lightning protection systems are a relatively new approach to the perennial problem of lightining damage, and these systems may hold promise for a more effective protection against lighting. Outdoor lightning protection system design specifications.
This helps assure that your lightning protection installation will provide your facility with the optimum level of protection. Designers and manufacturers of lightning protection systems for buildings, factories, and homes. The nf c 17102 and similar ese standards requirements for inspection and testing range from each year to every four years dependent upon location and protection level selected. The equipment and systems used for lightning protection are required to comply with the national. Lightning pdf professional is an allin1 pdf solution for creating industrystandard pdf files, editing pdf text and images, converting pdfs to office documents, adding comments plus editing and filling in pdf forms. Pdf lightning protection of pv systems enrico pons and. Usa, all leading manufacturers of lightning and surge protection products. Lightning phenomenon, effects and protection of structures. Metal building components, irrigation and security systems, invisible and electric fences.
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