The standing seam guardrail system provides permanent fullperimeter fall protection that allows 100% watertight installation with standard roofing and sheet metal details. Oct 28, 2019 example of electrical earthing lightning protection implemented in the site project free convertible templatemethod statement for installation and testing of earthing, bonding and lightning protection. Bs eniec 62305 lightning protection general standard principles. The roofing contractor will be responsible for sealing and flashing all lightning protection roof penetrations as per the roof manufacturers recommendations. Article 250 covers the grounding requirements for providing a path to the earth to reduce overvoltage from lightning, and the bonding requirements for a lowimpedance fault current path back to the source of the electrical supply to facilitate the operation of overcurrent devices in the event of a ground fault. A beginners guide to lightning risks and protection. Method statement for earthing, bonding and lightning. System description the entire lightning protection system shall be designed and installed in accordance with. Lightning protection of buildings international nuclear information. Designers and manufacturers of lightning protection. The structurethe structure ss effective collection areaeffective collection area for lightning strikes. Jul 03, 2019 for each of these, nfpa 7802020 outlines unique protection guidelines, covering materials, grounding, bonding, concealed systems, corrosion protection, and various other protective measures.
Spd, protection of equipment in existing structures. Design calculations of lightning protection systems part. Structural earthing and lightning protection systems for. Lightning strikes present a real and significant threat to life, to the structures in which we live and work, and to the electronic systems which support us lightning contains awesome amounts of electrical energy. Lightning protection systems training for utility, industrial. The early streamer emission ese air terminal provides the design engineer with an air terminal free of.
Pdf lightning protection techniques for rooftop pv systems. The capacity of an installation to provide sufficient protection against lightning protection is guaranteed by compliance with all. Lightning protection archives lightning eliminators and. If some information is not clear, use the index to find more detail. Detailed manufacturers data sheets on all components, accessories and.
Designing to the iec 62305 series of lightning protection standards. All material specified is manufactured by thompson lightning protection inc. Below are a few examples of typical lightning protection details that might be shown on a lightning protection system design layout. Since the details are inherently graphical in nature, they are not readable by a screen reader. The use of lpi earth points enables the installer to locate the complete earthing system within the structure and provides a location free from possible damage or.
Article 250 grounding and bonding mike holt enterprises. 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. The complete lightning protection system and its components will be automatically captured in a parts list, which can be exported to financial application for calculating offers or tenders. C the installing contractor shall be listed with the lightning protection institute, and underwriters laboratories, inc. Access to the marks hub is free and open to all regulators. Lightning protection packing up to 100 million volts of electricity, a bolt of lightning has the power to rip through roofs, explode walls of brick and concrete and ignite deadly fires. Even with the air terminals and down leads, there is always a risk of sideflash, which is one of the primary. This is supposed to prevent puncture between the steel reinforcement of the floor slab. Documentation and printout countryspecific standard designations and the associated. Lawrence, 19publication date 1973 topics lightning protection, lightning. Furse freestanding interception air rods are designed to protect rooftop mou. Wire with plastic sheath halogenfree, frostresistant and uvstabilised as additional mechanical corrosio. Bs eniec 62305 lightning protection general standard.
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. The installation contractor shall have personnel on staff certified by the lpi as a master installer designer of lightning protection systems. The lightning protection installer will work with other trades to insure a correct, neat and unobtrusive installation. This standard has a comprehensive risk assessment section that is based on iec standards, well written rules for the design of lightning protection systems, guidance. Moreover, ddscad lightning protection provides extensive features for producing detailed plots, ensuring correct assembly on site. As was stated many times in the past, the conventional lightning protection philosophy, the methods and their. M1 is a high performance, solvent free, uv resistant, moisture curing polyether. However, the lightning protection contractor will be. This ufc supersedes milhdbk 10046, lightning protection, and army tm 581 air force afm 889 chapter 3, electrical design, lightning and static electricity. Now the third revised edition of the english lightning protection guide is available. Code of practice for the protection of buildings and. Downloads lightning and surge protection, safety equipment. Each detail is available in pdf and autocad dwg formats, go to our secure ftp site do not use internet explorer, use another browser for the dwg format drawings.
Pdf lightning protection guide 3rd updated edition. This catalog details the system 2000 lightning protection products to meet the. For long gaps the sparkover voltage is about cause they tend to absorb free electrons. When designing a structural lightning protection system using the faraday cage principle advocated. State of the art for the installation of lightning protection systems 0. Use current division to control the dissipation of lightning strike energy on an antenna tower grounding system through multiple paths. Lightning protection theory schirtec lightning protection. The lightning protection system simply provides a safe path for the lightning current to follow allowing the harmful current to be guided safely into the ground and away from your home. General principles bs eniec 623051 risk management bs eniec 623052. Internal lightning protection surge protection surge protection is not part of the installation of a lightning protection system, rather it is a separate operation.
Commercial and industrial protection from lightning strikes for buildings and site assets. In the initial stages of development, air acts as an insulator between the positive and negative charges in the cloud and between the cloud and the ground. For details of the selection and usage of performance enhancement materials of earthing systems, refer iec 625617 2011. Lightning protection system design and calculations electrical knowhow. Since then, further information has been steadily added to the planner section of the guide to include information on surge protection. Despite this, coordination with external lightning protection is necessary. Nov 30, 2020 va standard details numbering system relates to specification masterformat 2004. For years, lightning preventor of america has designed and manufactured worldleading technologies that divert lightning ground strikes. Lightning protection standards lpi 175 and nfpa 780. Equipotential bonding for lightning protection shielding of enclosed spaces avoiding proximity. Every specialist who has to do with lightning and surge protection appreciates our indepth lightning protection guide. The product terms mentioned in the lightning protection guide that are also.
The information provided here must be utilized by electrical engineers in the development of the plans, specifications, calculations, and designbuild request for. Lightning protection solutions nvent erico system 2000. Welcome to the web site for lightning preventor of america. 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. That is, the protection of personnel equipment facilities. The lightning protection standard is an iec standard and was therefore incorporated in the standards of the cenelec members under consideration of national requirements. Protection of ground based assets can be achieved by locating lightning masts or shield wires to intercept lightning strikes before they reach equipment or assets. For approval of a manufacturer other than specified.
Furnish all labor, materials, and items of service required to complete a functional and unobtrusive lightning protection system approved by the architect in strict accordance with the specifications and contract drawings. Standard for the installation of lightning protection systems. Detail drawings of supporting masts, down conductors, ground systems, and bonding applications for the prevectron 4 electronically activated streamer emission ease lightning protection system. While the design of the mast incorporated a welldesigned lightning. This method statement formalizes the requirements for earthing, bonding and lightning protection.
In 1991, lightning protection was again an issue of the system designed to replace the ab577621 series of masts. The current standard for lightning protection in australia and new zealand is asnzs 1768. 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 underwriters laboratories 96a, standard for installation requirements for lightning protection systems, ul 96a. Standard for the installation of lightning protection. Requirements for lightning protection systems, or nfpa 780, standard for the.
Feb, 2018 read below to learn the basics of lightning risks, as well as common lightning protection methods to lessen damages. An improperly installed lightning protection system can cause more damage then not having any lightning protection. Masts can be positioned to draw away the current and direct it into an earth grid. In actuality, groundings purpose is a lot more than providing a common point of reference. Mar 15, 2021 industrial lightning protection for businesses is vital to their success. Lightning protection, grounding, equipotential bonding and surge protection are. For more information on erico, caddy, eriflex and lenton, please visit erico.
Referring to the illustration, ridge protection, less than 75ft, corner downcomer, let us examine each detail. Separate the antenna tower from the equipment building by a minimum of 30 feet. Details are available in autocad and adobe acrobat formats. For more than three decades, this standard reference book has provided extensive knowledge, e. Lightning protection lightning is a giant spark of electricity in the atmosphere or between the atmosphere and the ground. For long gaps the sparkover voltage is about cause they tend to absorb free ele. A direct lightning strike can damage structures, critical equipment and occupants. The protection system is also equipped with surge protection devices spd based on the zonal protection scheme to protect the site from both direct and indirect damages of lightning, with special. Ul marking and application guides are updated as necessary due to new product development. Deliverables can include interactive 3d pdf models, screen shots, plan views and section views demonstrating the protection solution achieving the required protection for your assets. Lightning protection guide is available as printed book, as pdf file.
General principles since it is impossible to avoid a lightning strike, the application of lightning protection measures must be considered. Lightning protection and lightning preventor of americas ese lightning protection systems for compliance with manufacturers installation standard hbp21. Each ul product category code provides a direct link to the guide information for the product. Moreover, ddscad lightning protection provides extensive features for producing. Lightning protection standard the bs eniec 62305 standard for lightning protection was originally published in september 2006, to supercede the previous standard, bs 6651. Wire with plastic sheath halogenfree, frostresistant and uv stabilised as additional mechanical. All of our material sales come with design drawings andor details that pertain to your lightning protection system. Lightning protection by lightning eliminators and consultants. A lightning protection system does not completely eliminate the damage that can be caused to a structure, but it can certainly decrease the damage by routing the energy directly to ground instead of giving it free reign of the building. Lightning protection is not a doityourself project. The details below show typical mounting applications on various roofs, fastener placement on various roofs and miscellaneous bonding and conductor splicers. An earthing system is a need in any electrical system to protect from the adverse effects of lightning, leakage currents, insulation failures, short circuiting and other faults. Ufc 357501 lightning and static electricity protection. It is recommended the lightning protection system be visually inspected at least annually per nfpa by a lightning protection contractor that is a member of the lpi and ul listed.
Nfpa 7802020, standard for lightning protection systems. A practical guide to lightning protection and australia and nz. Downloadable lightning protection standards system specifications including lpi175 standard and nfpa 780 for the installation of lightning protection systems. It is advisable to use this reduced mesh size for each building to ensure that a lightning protection system can be installed at a later date. Before implementing a lightning protection system, its important to understand the risks associated with lightning. Pdf since lightning has no specific path to reach the ground, it may choose to utilize any conductor. Limited scope report from lightning protection institute inspection program lpiip, depending on the lightning protection scope of work. The standing seam guardrail system attaches to the structural metal panels with preengineered s5 clamps ensuring solid and maintenance free installation without. We normally think of lightning as coming down from the sky, so the highest point on the structure has the most exposure.
This standard has a comprehensive risk assessment section that is based on iec standards, well written rules for the design of lightning protection. Ds202de dehn uni earthing clamp saddle clamp pdf only. A lightning protection system neither attracts, repels or prevents a lightning strike. Since our beginning, thompson has sought to be the industry leader in manufacturing the. The lightning protection institute is a nationwide notforprofit organization founded in 1955 to promote lightning protection education, awareness, and safety. Lightning riskslightning risks ri k t i b d li ht i t ik d itrisk assessment is based on lightning strike density maps called isokeraunic or isoceraunicmaps, plus. You cant stop lightning, but you can prevent its destructive effects.
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