For a finite period, bs en iec 62305 and bs 6651 ran in parallel, but as of bs en iec 62305 lightning protection standardaugust 2008, bs 6651 has been withdrawn and now bs en iec 63205 is the recognized standard for lightning protection. The current iec 62305 3 standard requires that roofmounted structures be located within the protected. Finally, methods to simulate lightning currents in laboratory are presented which allow the verification of lightning protection measures or components. Lighting protection level i is the most severe, with level iv being the least. Iec 6164312 is valid for the installation of energy protection components and iec 6164322 is valid when protecting measurement and control systems. British standards can be obtained in pdf or hard copy formats from the bsi online. Design calculations of lightning protection systems part. Need for lightning protection protection measures basic design criteria lightning protection level lpl lightning protection zone lpz protection of structures bs en 62305 2 risk management 21 perception of risk risk management procedure uk and world maps bs en 62305 3 physical damage to structures and life hazard 35 lightning protection. Knowledge evolved from lightning research has also led to improvements in the calculation of the separation distance. 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.
Iecbs en 62561 lightning protection system components lpsc 125. A guide to bs en 62305 protection against lightning. Adoption of iec 62305 as the basis for one major u. Objective of the paper is to revisit the determination of separation distances. This standard, iec 62305, consists of four parts and was adopted in its entirety by the european committee for electrotechnical standardization, cenelec, and published as the en 62305 series in 2006.
Pdf comparison of lightning risk calculation results. The iec 62305 lightning protection standard was created by the european tc. The latest iec 62305 3 standard requires that roofmount. Bs eniec 62305 lightning protection general standard principles. Knowledge in the field of lightning research allowed to constantly further develop the method of calculating the separation distance.
The primtech lightning protection calculation can accommodate lightning protection rods and wires as lightning arresters. Lightning protection calculation lightning protection. Iec 62305 is the overall guideline for all applications when dealing with lightning and surge protection. Desigr ers thought that protection was not necessary in many cases because the antenna mast was relatively short 10 meters or less. The international standard iec 623053 recommends using electrically conductive parts of a building or structure as socalled natural components of the lightning protection system.
Design calculations of lightning protection systems part thirteen in article design calculations of lightning protection systems. Iec 62305 2 provides a lightning risk management procedure that ncorporates. In order to accomplish that, it is crucial to dominate two subjects. In order to design an effective lightning protection system with franklin rods or capturing meshes, the following rules shall apply. Lightning protection system design and installation. Lightning discharge, risk assessment, lightning protection system, iec 62305. Software for design and calculation of lightning protection. Pdf iec 623053protection against lightning branislav. These lpls equate directly to classes of lightning protection system lps. In 2006 the international electrotechnical commission issued a new standard covering protection against lightning. Design calculations of lightning protection systems part three.
Design calculations of lightning protection systems part two. Design guidelines for lightning protection of pv systems. Bs en 623054 electrical and electronic systems within structures. Lightning protection level lpl four protection levels i, ii, iii and iv are defined by considering the peak current, charge, specific energy, duration of various lightning strokes and the probability of these being exceeded. Bs eniec 62305 lightning protection general standard. St d d li ht istandards lightning protection systemsprotection systems iec en 62305. Structural earthing and lightning protection systems for. Risk management bs en iec 62305 2 part 2 risk management approach, does not concentrate so much on the purely physical. Lightning protection risk assessment calculator photo.
The aim, by a series of trial and error calculations is to ultimately. Differences between national lightning protection standards and the iec 62305. Functions of an external lightning protection system. The international electrotechnical commission iec is a body responsible for implementing international standards. Bs eniec 62305 lightning protection standard mafiadoc. Lightning protection according to iec 62305 diogo filipe da silva santos thesis to obtain the master of science degree in. Lightning protection measures as per iec 62305 12010, protection measures may be adopted in order to reduce the risk according to the type of damage.
Bs en iec 62305 1 part 1 is an introduction to the other parts of the standard and essentially describes how to design a lightning protection system lps in accordance with the accompanying parts of the standard. Every class have different value d for calculation position of lightning rod figure 3 iec 62305 3 class of protection level the protection level is correlated to the damage probability on the considered structure. In order to evaluate whether or not lightning protection of a structure is needed, a risk assessment in accordance with the procedures contained in iec 623052 shall be made. Protection against lightning a uk guide to the practical. Risk management this englishlanguage version is derived from the original bilingual publication by leaving out all frenchlanguage pages. Comparison of lightning risk calculation results using different software based on new standard iec 62305 2 conference paper pdf available september 2006 with 1,956 reads how we measure reads. Missing page numbers correspond to the frenchlanguage pages. Bookmark file pdf bs en 62305 2011 update furse how to install lightning protection on a house practically everything you need to know to purchase and install lightning protection for a building.
Design guidelines for lightning protection of pv systems eng460 engineering thesis final report mick constable august 2012 to november 20 a report submitted to the school of engineering and energy, murdoch university in partial fulfilment of the. The same is also implemented in new national building code 2016, part 8, section 2 which also clearly defines the need of the measures to be taken care for planning, erection, testing and maintenance of lightning protection system. Interception of direct lightning strikes by means of an airtermination system conducting the lightning current to earth by means of down conductors distribution of the lightning current in the. History of lightning protection system design in tactical sstems many older communication systems do not have lightning protection incorporated into their design. In order to evaluate whether or not lightning protection of a structure is needed, a risk assessment in accordance with the procedures contained in iec 62305 2 shall be made. Lightning protection system lps bs en iec 62305 1 has defined four lightning protection levels lpls based on probable minimum and maximum lightning currents. This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. Pdf comparison of lightning risk calculation results using.
Bs en iec 62305 lightning protection standard iec 62305 3 edition 2. Design guidelines for proper lightning protection system as. Keep up to date with new publication releases and announcements with our free iec just published email newsletter. Lightning protection measures as per iec 6230512010, protection measures may be adopted in order to reduce the risk according to the type of damage. Building lighting protection calculation excel electrical. A lightning protection system consists of an external and internal lightning protection system. The correlation between the four levels of lpl and lps is identified in table 7. Per iec 62305 1, a risk assessment in accordance with the procedures contained in iec 62305 2 shall be made in order to evaluate whether or not lightning protection of a structure is needed. British standards can be obtained in pdf or hard copy formats from. Bs en 62305 4 pdf bs en protection against lightning part 4.
Although focused on the bs en standard, this guide may provide supporting information of interest to consultants designing to the iec equivalent. External lightning protection current lightning protection standards. Pdf lightning protection guide 3rd updated edition adrian. Obo supports and drives the development of nation al and international lightning protection standards of the series iec 62305 vde 0185305. A detailed calculation can be found in annex a of iec 623052. Iec 623053 provides formulae to determine the necessary separation distance. It should be helpful in understanding the effect of selection of parameters in risk assessment tools based on iec 6230512, and if a manual assessment is to be. Electrical and electronic systems within structures. The bs en iec 62305 standard for lightning protection was originally published in september 2006, to supersede the previous standard, bs 6651. Key to bs eniec 62305 is that all considerations for lightning protection are driven by a comprehensive and complex risk assessment and that this assessment. Scheme design criteria the ideal lightning protection for a structure and its connected. 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. Mar 08, 2018 the international standard for lightning protection referred as iec 62305 protection against lightning, which is also accepted by many countries as national standard especially adopted by bureau of indian standard as is iec 62305, in one of its part explains the need of planning, erection, testing and maintenance of lightning.
Conventional calculation according to iec 62305 3 specific protection measures must be taken to prevent lightning damage. Bs en physical damage to structures and life hazard. Once a lightning protection level has been selected, this fixes many of the parameters for the design and installation of the system. Comparison of lightning risk calculation results using different software based on new standard iec 623052 conference paper pdf available september 2006 with 1,956 reads how we measure reads. Provides the requirements for protection of a structure against physical damage by means of a lightning protection system lps, and for protection against injury to living beings due to touch and step voltages in the vicinity of an lps see iec 62305 1. 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.