Design calculations of lightning protection systems part six first. Lightning protection according to iec 62305 diogo filipe da silva santos thesis to obtain the master of science degree in. The subject of surge protection is rather complicated and requires special knowledge. Pdf lightning discharge parameters in building lightning. Air rods or finials whether they are free standing masts or linked with. Download lightning protection risk assessment calculator for free. Product update new strikerisk software for lightning.
Free download software to calculate risk assessment of lightning strike in buildings or facilities. The bs eniec 62305 standard for lightning protection was originally published in. Lightning discharge parameters in building lightning protection calculations. Lightning protection risk assessment calculator photo. The program is made based on the methodology, established in the international standard bs en 623052. Bs eniec 62305 lightning protection standard the bs eniec 62305 standard for lightning protection was originally published in september 2006, to supercede the previous standard, bs 6651. Then purchase the remove pdf protection software which is capable to break pdf password, break pdf protection and remove pdf restrictions and remove protection from pdf. Free lightning protection design software paradise electric.
From our own designed and manufactured products to systems design advice through to onsite supervision and testing and commissioning, furse can provide a total solution to an organisations. A catenary is a curve formed by a wire, metallic rop, or chain hanging freely from two points that are on the same horizontal level. Lightning protection risk assessment calculator the simplified iec risk assessment calculator is intended to function as a companion, and not alternative, to the written standard. The lightning protection standard is an iec standard and was therefore incorporated in the standards of the cenelec members under consideration of national requirements. Design calculations of lightning protection systems part scribd. Installation of an lps is a tried and true protection method that has been used for more than a century. Structure is adequately protected for this type of loss and no lightning protection is required, this phrase will appear in green color as it is an approval for the design. How to calculate lightning protection risk level for the. Calculate the risk of a building according to main standards like iec en 62305. Arguably, the most common use of a catenary lightning protection system is the overhead ground wire used to protect the phase conductors in power transmission lines. Rolling spheres method for lightning protection epow 6860 surge phenomena fall 2007 joe crispino 1. Promoting research, applications and education on lightning. This guide is designed to assist in that determination. Low letthrough voltage protection in all common and differential modes means.
Pdf since lightning has no specific path to reach the ground, it may choose to utilize any. Lightning protection calculation free software downloads. Sep 01, 2015 i have using lightning protection calculation in excel format based on bsen 62305. Therefore, this catalogue provides you with some helpful information. All relevant devices, installations and systems must be reliably protected to an economically reasonable extent. Lightning stock flushing density number of thunderstorm. Lightning is one of natures most powerful and destructive phenomena take a look as to why protection against it, is so important. It can serve as a useful guide to justify additional cost incurred by additioh.
The basis of conventional lightning protection technology. No known practical method of providing 100% shielding. Once a lightning protection level has been selected, this fixes many of the parameters for the design and installation of the system. Building lighting protection calculation excel electrical. For a finite period, bs eniec 62305 and bs 6651 ran in parallel, but as of bs en iec 62305 lightning protection standardaugust 2008, bs 6651 has been withdrawn and now bs eniec 63205 is the recognized standard for lightning protection. Calculate whether lightning protection is required or not for following building.
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. Despite this, coordination with external lightning protection is necessary. During thunderstorms too, high volume of energy is instantaneously released which is more common in nature. With the support of this application user are capable to copy, modify, edit, extract text, filling forms, print, copy. Higher the lighting strike density, higher the probability of lightning strike which needs higher level of lightning protection level. Design guidelines for proper lightning protection system as. Abstract the technical committee tc 81 lightning protection of the international electrotechnical commission iec was established in stockholm in june 1980 with the scope to prepare international standards and guides for lightning protection for structures and buildings, as well for persons, installations, services and contents. Ul marking and application guides are updated as necessary due to new product development. The goal of this course is to learn how to design lightning protection systems. This application is simple to use and highly intuitive, in order to. State of the art for the installation of lightning protection systems 0.
For example, the size of the rolling sphere for calculating protection zones is 20 m for a protection level of i, and increases to 60 m for level iv. Fundamentals of lightning protection systems page 1 of 14 fundamentals of lightning protection systems, edition 1c september 2011. Different approaches by national lightning protection standards. Jun, 2019 lightning protection system are method to divert the effects of lightning discharges away from the building, its occupants and sensitive equipment housed in the building, including from the. It is the measure of lightning strikes per kilometre square per year in the particular area. Lightning protection risk assessment calculator free. Documentation and printout countryspecific standard designations and the associated national calculation values can be selected and displayed in the dehn risk tool software. The risk here is defined in the standard iec 62305 as the probable average annual loss in a structure and in a service due to lightning flashes risk factor depends on 1the annual number of lightning flashes influencing the structure and the service 2the probability of.
Lightning protection design software free download. Lightning protection system components are intended to be installed and used in accordance. Access to the marks hub is free and open to all regulators, but registration to use it is required. The product terms mentioned in the lightning protection guide that are also registered. 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. Apply all the steps for lightning protection system design process, perform the risk assessment study, size air termination system components, apply methods for the best positioning of air terminals, determine the number of down conductors, design earth termination system, write specifications for the designed lps. Now the third revised edition of the english lightning protection guide is available. The protection calculation of large complete substations, such as the 21bay substation below with 46 lightning rods, is just as feasible as the combined calculation of lightning arresters comprising of rods and wires. Risk assessment software lightning protection, surge. Standard for the installation of lightning protection systems. Bs eniec 62305 lightning protection general standard principles. Implementation of a lightning protection system including free standing pylons on site is also feasible. The bs eniec 62305 standard for lightning protection was originally published in september 2006, to supersede the previous standard, bs 6651. Calculate lightning protection for building structure.
The unpredictable, probabilistic nature of lightning. Costeffectiveness calculation for lightning protection systems. Lightning protection consultant handbook erico is dedicated to providing a costeffective lightning protection solution for any given application. Lightning discharge, risk assessment, lightning protection system, iec 62305. Bs eniec 62305 lightning protection standard mafiadoc. Calculated risk of a structure with a lightning protection system lpl ii. Pdf from the entire set of the electrical lightning parameters only the visible ones are the most significant. An epic storm over city of kosice slovakia with lightning bolts blasts too close for comfort by martin lajs via flickr these calculations are according to iec standard 623052. The primtech lightning protection calculation can accommodate lightning protection rods and wires as lightning arresters. Risk assessment calculator, maxwell lightning protection co. A properly installed lightning protection system lps is over 98% effective in preventing damage associated with a lightning strike. Whenever you are worried about your protected pdf file. Pdf lightning protection guide 3rd updated edition.
Lightning protection calculation free software myelectrical. As a guide, it is not possible to cover each special design element that may render a structure more or less susceptible to lightning damage. Design guidelines for proper lightning protection system. Lightning loss risk assessment involves the evaluation of various criteria to determine the risk of loss due to lightning. Calculate no of down conductor for lightning protection area of building structure. Like many other engineering systems, lightning protection is not necessarily a design preference, but the need for a lightning protection system is determined by the requirements of nfpa 70 and nfpa 780, a lightning risk assessment, and oftentimes the facilitys insurance carrier. Toni merrill furse technical department product update for more information or to request a free trial, please visit. Erico manufactures, using the eritech trade name, lightning protection systems in full accordance with more than twelve national and international. The lightning protection institute is a nationwide notforprofit organization founded in 1955 to promote lightning protection education, awareness, and safety.
This illustration identifies the components and introduces the basic rules for an. Helpful calculation tools for determining a zone of protection are provided. The ideal lightning protection for a structure and its connected services would be to enclose the structure within an earthed and perfectly conducting metallic shield box, and in addition provide adequate. Design calculations of lightning protection systems part. Install lightning protection measures in order to reduce the calculated risk r, this phrase will appear in red color as a warning sign. This formula shows that it is more difficult for an airterminal. Designing to the iec 62305 series of lightning protection standards. It does not cover the protection of electrical transmission and distribution systems, and communications systems. Mar 08, 2018 a proper lightning protection system design is very important to ensure increased protection of a building against lightning and its effects. Danger for people h it is the factor of presence of people and panic in the building in case of a lightning strike.
Structural earthing and lightning protection systems for. Design problems the unpredictable, probabilistic nature of lightning. Lightning protection calculation lightning protection. New strikerisk software for lightning calculations. Janakiraman, senior manager product development, obo bettermann india pvt ltd explains the design guidelines. Bills of quantity related to each lightning protection system design are accessible at any time in the software, and can also be exported to excel file. Sep 20, 2015 3what will be the change in the density of arc electrical parameters when it sparks out from leading electrode and when it reaches the end electrode after ionising the air molecules when a lightning strike occurs directly lightning strokes and if lightning hits the transmission line please provide guidance such that it would be useful for.
Bs eniec 62305 lightning protection general standard. Equipotential bonding for lightning protection shielding of enclosed spaces avoiding proximity chapter 5. Using lightning protection rods and wires as lightning arresters, it visually illustrates the required results in form of the lightning protection volumes and areas. Lack of data due to infrequencies of lightning strikes in switchyards. The class of lps to be installed is governed by the result of the risk assessment calculation highlighted in bs eniec 623052. Lightning protection calculation free download as pdf file. Lightning protection system design and installation. 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. For a finite period, bs eniec 62305 and bs 6651 ran in parallel, but as of august 2008, bs 6651 has been withdrawn and now bs eniec 63205 is the. Abb furse is providing tailored customer support with technical and design services to optimise the cost of earthing and lightning protection systems. Lightning and surge protection system for electrical installations is an indispensable infrastructural condition for the trouble free operation of complex electrical and electronic systems. Implementation of a lightning protection system including freestanding pylons on site is also feasible.
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