Lightning protection principles knowledge of the mechanism of the lightning discharge enables an understanding of the way in which lightning detection and warning systems operate. Professionally installed lightning protection systems are the best way to reduce the likelihood of a lightningcaused fire. Nfpa 780 and ul 96a are application standards governing satisfactory installation of an lps. Thousands of trees are struck by lightning every year. Lightning protection consultant handbook erico is dedicated to providing a costeffective lightning protection solution for any given application. No more complicated calculations with dehnsupport toolbox 2. The basis of conventional lightning protection technology. Jul 12, 2007 bs en 62305 defines four lightning protection levels lpls based on probable minimum and maximum lightning currents. 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. These lpls directly equate to classes of lightning protection systems lps. Inadequately protected aerospace vehicles can be upset, damaged, or destroyed by a. Buy nfpa 780, standard for the installation of lightning. The lightning protection institute is a nationwide notforprofit organization founded in 1955 to promote lightning protection education, awareness, and safety. Jun 15, 2015 hence works which have been previously installed and already accepted under the old standards do not become defective because, as a result of the updating of the standards, a higher technical standard is demanded.
Furse structural lightning protection and earthing components are therefore rigorously tested to this standard. Surge protection critec where do you turn for lightning protection expertise and certification. Lightning protection for comrex equipment lightning protection is not an exact science. Prior to this was bs cp326, first published in 1965. The valms t1t2 protective device for lightning protection level iii iv also covers the range of a type 2 arrester. Furse total solution catalogue this indepth 300 page product catalogue features. Guidelines for providing surge protection munich re.
May 02, 2015 materials used shall be resistant to corrosionmaterials used shall be resistant to corrosion aa coppercopper bb copper alloyscopper alloys cc aluminumaluminum i. Copper lightning protection materials shall not becopper lightning protection materials shall not be installed on aluminum roofing, siding or otherinstalled on. Now the third revised edition of the english lightning protection guide is available. Electrical engineering, lightning and cathodic protection of december 1979. Lightning is one of natures most powerful and destructive phenomena take a look as to why protection against it, is so important. Protection against lightning a uk guide to the practical. Power lightning arrester and signal lightning arrester are used for lighting protection. Knowledge our knowledge of the latest standards ensures designs and selected products comply with the latest iecbs ennfpaul standards. The matched, safe and tested lightning protection sys tems from obo bettermann protect people, buildings. Lightning protection design of a renewable energy hybrid. Design of lightning protection systems dehnsupport toolbox software. Bs eniec 62305 lightning protection general standard. Protection against lightning a uk guide to the practical application of bs en 62305 michael l henshaw mba, i.
Overvoltage protection devices surge protection devices, or spd for short generate equipotential bonding between the. Established in 1984, east coast lightning equipment provides highquality, ul listed lightning protection system components to the lightning protection and professional design industries throughout the usa, canada, central america, and the middle east. This report investigates the discharge mechanism and discusses the principles of lightning protection and the way this is applied to the protection of structures. A lighting protection system lps is the system that provides a means by which a lightning discharge may enter or leave earth without passing through and damaging personnel, electrical equipment, and nonconducting. Chapter 2 lightning protection design, engineering, acquisition. This paper attempts to separate the desired protection practices from folklore and marketing hype. The policy of the naval facilities engineering command is to provide the most effective degree of lightning protection. Today, i will explain the different types of lightning protection systems lps. Lightning protection systems with nonradioactive ionization device. Furse are experienced on a range of projects from stock exchanges to schools, royal palaces to oil refineries and more. Efla sheriff surge protection device spd to secondary circuit protects airfield ground lighting equipments and system from damages upon lightning strike. 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 not only do we supply lightning protection and earthing materials, we will also design the system you need.
If an outdoor ac power cord should be directly connected to the device, please use a power lightning arrester. The new standard uses the class of lps to define several attributes of the lps. While pricing generally runs less than 1% of the value of the structure, costs for protection vary depending on the size of the structure, location, construction, roof type and grounding conditions. Power lightning arrester is used for limiting the voltage surge due to a lightning. Abb furse iet wiring regulations read all about the requirements laid out by the iet wiring regulations and find out where appropriate surge protection measures in the form of surge protection devices may be needed. Bonding, grounding and surge protection by richard kithil, president and orlando alzamora, vicepresident national lightning safety institute nlsi 1.
Lightning protection national lightning safety institute. Lightning protection for facility operational continuity requires attention to combinations of. Electrical code, nfpa 70 and installation requirements. Metal building components, irrigation and security systems, invisible and electric fences.
Power lightning arrester is not provided with our product. The lightning protection international standard prof. Fundamentals of lightning protection systems page 1 of 14 fundamentals of lightning protection systems, edition 1c september 2011. The art and science of lightning protection uman, martin a. Samad khan, global product and standardisation manager for furse, explains the logic behind the changes to surge protection requirements and test standards in the 18 th edition of the iet wiring regulations and protecton the industry needs to know about them. The indelec tester meets the requirements of nf c 17102. You can follow all the rules and still lose equipment in a severe storm. A lightning protection system provides a network of low resistance paths to intercept, in a safe manner, lightnings dangerous electricity and direct it to the ground without any impact to a structure or its occupants. Lightning and surge protection basic principles 1 introduction rarely does the power of nature strike an observer more forcibly than the sight for the first time of a. Reviewed in the united states on december 24, 2012. Ul 96 and ul 467 are product standards for lightning protection components.
Lightning protection for facility operational continuity requires attention to combinations of defenses. A lighting protection system lps is the system that provides a means by which a lightning discharge may enter or leave earth without passing through and damaging personnel, electrical equipment, and nonconducting structures such as buildings. This handbook is written to assist in the understanding of the iec 62305 series of lightning protection standards. This operation is conducted on site and does not require the lightning rod to be dismantled. Lightning protection and overvoltage protection for sunny. State of the art for the installation of lightning protection systems 0. By choosing lightning protection components conforming to the bs en 50164 series, the designer ensures he or she is using the best products on the market and is in compliance with bs en 62305. Lec services have provided lightning, grounding, and surge protection solutions throughout multiple industries which have produced greater. Direct lightning strike hit to runway or taxiway may cause massive blackout and equipment damage even for hundreds of light fixtures and transformers. An expert on lightning protection must determine for each pv system which.
In addition to these, there may be legislation or rules of each country that must be taken into account. 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 not only do we supply lightning protection and earthing. Furse provides a wide range of literature for customers covering everything from indepth product catalogues and technical guide books on the latest standards, through to product datasheets and risk assessment software. This is a medium to advanced level book, very suitable for science, electric, physics or electronic students written by the world lighting authority dr. 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. Knowing lightning and surge protection terminology, abbreviations, signs and symbols, knowing what is lightning and types of lightning flashes, knowing what is the lightning protection systems lps, types and components, knowing the correct choice of lightning protection system components. 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 damage at all figure 1.
Lightning protection mastering the maze of bs en 62305. 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. Ds202de dehn uni earthing clamp saddle clamp pdf only. Proven protection where there is a risk of lightning striking directly or indirectly. 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 protection system harger lightning and grounding. For 100 years, furse have manufactured marketleading lightning protection and earthing systems solutions, fully compliant with national and international standards. Furse lightning protection systems bailey lightning. Materials used shall be resistant to corrosionmaterials used shall be resistant to corrosion aa coppercopper bb copper alloyscopper alloys cc aluminumaluminum i. Lightning protection equipment lightning protection. Types of lightning protection systems lps electrical knowhow.
Obo bettermann is one of the worlds most experi enced manufacturers of lightning and surge protec tion systems. Marketleading lightning protection and earthing systems. Services with lecs unique combination of experienced consultants, engineers and integrated services, you can rely on expert advice backed by over 40 years of experience. Reflecting the latest protection methods, devices, and safety challenges, the 2017 spanish edition of nfpa 780, standard for the installation of lightning protection systems is the new industry benchmark for protecting lives and property from fire and related dangers associated with lightning events. Bs en 62305 defines four lightning protection levels lpls based on probable minimum and maximum lightning currents. Lightning protection guidelines for aerospace vehicles. Where do you turn for lightning protection expertise and. 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. Furse total solution to lightning protection 10 furse offers comprehensive solutions for all lightning protection needs lightning protection 11 40 providing an overview of the requirements for an effective structural lightning protection system together with detailed product information conductors 41 48. Nlsi promotes proactive defenses to mitigate the effects of lightning hazards. Type 2 surge arrester including residual current device. In both cases, this recommendation provides the procedures for the design and installation of the lightning airtermination system, down. Lightning protection software design acad drawings lightning protection training seminars installation certification erico will complete a takeoff of all lightning protection products and will provide a design and a bill of material. Furse lightning protection systems bailey lightning protection.
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