Search by VIN

Lightning protection system design ppt

– 5-4. Focus on Protection of Structures against Lightning Broader focus on Protection against Lightning including the structure and services connected to the structure Specific tables relating to choice and dimension of LPS components and conductors Specific tables relating to sizes and types of conductor and earth electrodes. In this article, you will be able to cover the different electric protection methods, system and devices, grading and protection, overhead lines protection, power system protection, cables feeder protection, transformer protection, motor protection ,generator protection, capacitor banks under all wind conditions. g. If the fence is isolated it needs to be assessed for touch potential hazards based on the fault scenario and EPR. 1. Soil Resistivity Testing 1. Lightning Protection Systems Design. 1 (December 2016) surge protection of electrical equipment is a very important part of the electrical system design. the tank wall. The respective system performances were compared in terms of total energy generated and energy yield. Determine the required height of masts. 1 Protection of AC systems with linear voltage sources 28 6. 2. ) Lightning is a well known phenomenon. The DEHN Air-Termination Lightning Protection & Earthing System Design Training Courses for the prevention of damage to buildings and power assets. This PPT contain 88 pages due to time constrain we are only ableThis PPT contain 88 pages, due to time constrain, we are only able Chapter 2 The external lightning protection system 45. Basically, lightning is a gigan-tic spark resulting from the development of millions of volts between clouds or between a cloud and the earth. There are some applications where it becomes difficult to use the standard in its entirety. so, some of the links will not work during this period and we are sorry for that. It could spoil many significant components of any power system. 2 Protection of DC systems with linear voltage sources 40 6. Types of Lightning Arresters The lightning arrester protects the electrical equipment from lightning. This is a long and descriptive article on different types of protection for electrical systems and networks. With these lightning protection components installed in the prescribed locations, both the 138kV system and the 69kV system will have complete lightning protection coverage. When designing lightning protection systems, various parameters must be taken into account  2 / TMS Times standard PowerPoint Template /. 3 Protection of DC systems in photovoltaic systems 43 CATHODIC PROTECTION SYSTEM DESIGN • Presented By DENIS L ROSSI P. The lightning rod requires a connection to earth to perform its protective function. Chapter IV - System Planning, Design, Construction, and Protection NEI Electric Power Engineering Page IV-9 power to a customer. 1. Shunt capacitor banks are relatively inexpensive and can be easily installed anywhere on the network. Complete autonomy. 5 Billion by 2024 (2) - Aircraft Communication System Market is estimated to exceed USD 2. Like it or not, that is about the best you can do. (b) The same house protected by a lightning rod system consisting of three smaller rods, each assumed to provide a 45 °-angle cone of protection. Lightning monitoring system 26 5. 2. – Compact design Easily integrated in all types of lamp posts due to its highly compact design, suitable to small power supply boxes. Major Differences Between the Standards exposure of the substation, designing the lightning protection system according to an appropriate method and evaluating the effectiveness and the cost of the lightning protection system (LPS). 0 Early Field Surveys Validating the Performance of Lightning Protection 11 7. Lightning protection controls the PATH of the lightning after it hits. 4 Magnetic shielding and line routing 98 10. The grounding system in substation is very Lightning protection; Regulations for earthing systems vary considerably among countries and among different parts of electric systems. Jan 05, 2018 · Lightning protection is an essential system for any construction and it is thus necessary to understand the design and usage of this system. 5. Higher the lighting strike density, higher the probability of lightning strike which needs higher level of lightning protection level. 3. (a) Electrical bonding and protection against static electricity must be designed to minimize accumulation of electrostatic charge that would cause − (1) Human injury from electrical shock, (2) Ignition of flammable vapors, or The substation design manual is not intended to replace Asset Management Standards, but rather to act as a reference document that cross-references existing standards and process documentation and plugs any gaps where Asset Management documentation does not exist. 8 Get Connected to the Power Grid 23 4. Transmission system protection includes not just the protection of the transmission lines, but also the generators, transformers, and substation buses that complete the transmission system. Overvoltage Surge Protection - Technical Note, Europe and APAC Revision History Version 2. Basis of design a. telecommunications grounding system needs to take account of the following 5 points, typically but not always in this order of importance: 1. Reclosing may be applied to keep the line in service for temporary faults, such as lightning strikes. If you are considering lightning unit's design it is recommended that you seek out a professional, experienced lightning protection design team. More intense strokes get intercepted. Different energy sources - Electrical Energy, Lightning, Static Electricity, RF Energy In any discussion of the grounding of electrical systems, particularly as it applies to power systems, there also needs to be a consideration of how the grounding system relates to overcurrent protection. These methods are explained below in details. 2 Basic protection measures 94 10. Fields of application 28 6. * IEC 62305-2: Protection against lightning – Part 2: Risk management ** IEC 62305-3: Protection against lightning – Part 3: 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. in use today are of the traditional Franklin design. 5 Externally sited equipment 99 SME is an SABS ISO 9001:2015 specialist company with 34 years experience in the field of lightning protection, earthing and surge protection solutions. No known practical method of providing 100% shielding. LED Lighting Surge Protection Modules Design and Installation Guide Specifications descriptions and illustrative material in this literature are as accurate as known at the time of publication, protection system selected should provide redundancy to limit the impact of device failure, and backup protection to ensure dependability. Lightning Protection. The purpose of lightning protection is NOT to stop the lightning from striking. 1 Scope The scope of this guide is the identiÞcation and discussion of design procedures to provide direct stroke shielding of outdoor distribution, transmission, and generating plant substations. The DEHN Distance Tool allows to calculate the separation distance and to visualise the building as a 3D model. After validating the data, three variables were studied with respect to lightning damage: aircraft age, aircraft flight hours, and the level of lightning and HIRF protection. When lightning Lightning Protection Systems: Advantages and Disadvantages Donald W. Reynaldo Zoro. C. Not covered in NFPA 780 – 5-4. The argumentation is based on experiences gathered during the past Grounding in ®the Gastite Design & Installation Guide for details on bonding & grounding CSST. Evaluate the effectiveness and cost of design. 3  Oct 1, 2017 A common question on Lightning Protection Design that crops up time and the positioning of an air-termination system is adequate if no point of the make boring training for earthing PowerPoint (PPT) slides less boring…. The National Fire Protection Assoc. Jul 10, 2018 · Lightning protection and earthing equipment is usually made up of earth rods either copperbonded, solid copper or stainless steel (figure 25) – also forming the earthing system are copper earth plates (figure 26), copper lattice earth mats (figure 27) or 25 x 3mm copper earth tapes. The value received begins with proper design, continues through quality installation practices, and must include inspection and certification. e. Mar 30, 2011 · The lightning arrester provides protection against surges. Session Two: Proper Grounding of Instrument and Control Systems in Hazardous Locations Explosion Protection and Hazardous Locations Conference 2009 – IDC Technologies 2 Types of Grounds Any discussion on grounding invariably leads to a discussion on the different types of grounds and the corresponding definition of each. The safety ground for audio, video, and other electronic systems must be designed to work in conjunction with the building (facility) safety ground. 1 Operations of Solar PV Systems 28 Earthing Risk Management (ERM) – Providing Earthing & Lightning Protection Design and Site Assessments to sectors of industry since 2002. People spend billions on power quality equipment because it is less expensive than tens of billions in equipment losses. There are a lot of devices available in market which is used for protection against of lightning strikes. , grounding rods) will not reduce the hazard For a correct design of a lightning protection system in a structure, we must first carry out an analysis of the risk of the same, to determine if its protection is necessary. Technical Advisor for UL’s Lightning Protection Services Member of NFPA 780 Technical Panel Certification for Residential Building Inspector to the International Building Code for Single and Multi Family Dwellings Pending Lightning protection design for a structure using Rolling Sphere Method is undertaken. It is not the intention of this instruction to define the full process of design, construction and commissioning of lightning protection systems and design of insulation coordination and selection of surge diverters in detail. g. Benevides Jr. that which comply with the technical The blog is now under development which allows a better user's experience and a better arrangement of our courses and materials. Determine if the lightning design system is for a Greenfield or Brownfield project. 0 Design Procedures. Electrical engineering documents for lightning protection arc flash, lightning protection, distribution system design, and application of distributed generation. Lightning Research Center. Copper roofs offer ideal lightning protection where the copper roofing, gutters and rain leaders are electrically interconnected and reliably grounded. AC surge protection for incoming power and DC surge protection for tower mounted radio units. As one of the largest and most respected companies providing these services in south-east England, we are approved contractors to many local authorities, national bodies and major mechanical engineer, fire protection engineer, and architect with over 35 years experience in the design of buildings and related infrastructure. library. Type 1 surge protectors are designed to be installed where a direct lightning strike risk is high, especially when the building is equipped with external lightning protection system (LPS or lightning rod). It is recommended that the grounding design and installation be compliant to all applicable codes and standards [4][5]. The grounding system provides a low-impedance path for fault current and limits the voltage rise on the normally non-current-carrying metallic components of the electrical distribution system. Before you begin looking at prices or providers for a lightning protection system for your home, it can be a good idea to get an average price range for the installation. The selection of arrester depends on the various factors like voltage, current, reliability, etc. For an additional 9 years he was a senior advisor to the California Legislature on infrastructure and capital outlay issues. E. The protective angle (α) for interception rods varies according to lightning protection class. In a lightning protection system, a lightning rod is a single component of the system. Determine the soil resistivity by tests. 3. An earthing system is also known as protective earth or a grounding system. designing a lightning protection system. The objective of an external lightning protection system is to control the lightning strike point and provide the lightning current with a path to earth avoiding damage to the structure. Not covered in NFPA 780 – 5-5 NONCONVENTIONAL SYSTEMS. Safety: The No. Historical Vignette. 9 Sale of Solar PV Electricity 23 4. 6. Materials include Bare Copper, Lead Covered, and Stainless-Steel Lightning Protection equipment. Distribution system and protection against indirect contact and earth fault. b. They go hand in hand. ) The power quality industry is a multi-billion dollar industry. Arresters cannot effectively absorb very large stroke currents (arresters may fail, or discharge voltage become too high). TC81 has achieved its first cycle of work when issuing a standard (IEC 62305) in four parts (IEC 62305-1 to 4) listed below. Short authored the book Electric Power Distribution Handbook, 2nd Edition. The maximum load current level will impact the sensitivity of protection functions, 4. com Section 10: Design of protection for electrical and electronic systems within a structure 91 10. The methodology behind the design of the grounding system should be versatile enough to apply to any facility. S. txt) or view presentation slides online. Lightning protection appliances are buildup to switch the lightning strikes to ground so that any power system is *Corresponding author . Provide a lightning protection system in accordance with BS 6651 and IEC 61024 to protect the building structure and personnel from the risk of a lightning strike. Department of Energy AREA SAFT Washington, D. An LPS does not attract lightning , and cannot dissipate lightning , it simply provides fire and structural damage protection by preventing lightning from passing through building materials themselves. 2 Lightning current detection 27 6. A lightning protection system is designed to protect a Lightning protection systems are used to prevent lightning strike damage to structures. <Figure 2> : Franklin Rod Method BS Standard 6651:1999 specifies a few designs of lightning protection systems according to this principle. Historical Vignette Lightning protection systems have been in use in one fashion or another for over two hundred History of Lightning Protection System Design in Tactical Sstems Many older communication systems do not have lightning protection incorporated into their design. Verification of Lightning Protection Measures. 1 Smart monitoring 26 5. Direct lightning strike energy is enormous, and a surge protector alone cannot protect the stricken instruments. 9 Recommended Practices An array of measures, some detailed here, have improved safety. He is a graduate of Stanford University and has held numerous lightning. In this case radius of the sphere is calculated using the ‘Leader Potential Concept’ for calculating striking distance. 1 Components of a lightning protection system A typical lightning protection system in a watercraft has four major components. As explained in the above points, the main and important difference is the protection radius of each external lightning protection. protection from lightning and switching surges for the internal insulation of power transformers, etc. introduction of new aircrafts with a focus on reducing weight and incorporation of advanced avionics are boosting the aircraft communication system market over the Lightning Protection Overview . Lightning storms occur in every state, but most prevalently in the central and eastern United States. Lightning Protection products listed are for use with Industrial and Commercial Stacks, or Chimneys. The Ergon Energy design philosophy is to provide substations: angle cone of protection - that is, the height of the rod is H and the base area assumed to be safe from a lightning strike has a radius H. The possible types of damage are injury to living beings due to step and touch voltage; physical damage (fire, explosion, mechanical destruction, chemical and radiological release) due to lightning current effects and failure of internal systems due to lightning MEET THE NEW POLYPHASER. This standard covers a wide range of structures that are used in commercial and industrial applications. Basic requirements for cathodic protection design Contents of cathodic protection design report design life of the cathodic protection system, design documents justifying the sizing and layout of equipment (e. 1 Lightning Protection System 20 3. Strike termination devices, or air terminals, provide terminals for the lightning to attach to the watercraft. This paper discusses the design of a lightning protection system (LPS) as per the prescribed rules in AS1768. During a storm the ambient electric field may rise from  Before proceeding with the detailed design of a lightning protective system, the following essential steps should be taken: a) Decide whether or 'not the structure   A review of proper lightning protection system design and application as conforms with LSA instructors use a PowerPoint presentation to provide an in- depth  switchyards. When lightning protection is desired, it is usually achieved by providing a path of low resistance to ground. 1 INTRODUCTION Protecting overhead transmission lines against lightning strokes is one of the most important tasks to safeguard electric power systems, since lightning is a usual cause of faults in overhead lines. 4. Studies show that a flat voltage profile on the system can significantly reduce line losses. Step 2: Electrical Review of PV System (Calculations for Electrical Diagram) • In order for a PV system to be considered for an expedited permit process, the following must apply: 1. 3 Expertise in surge protection 24 5. aircraft and their systems and to assess the effect of the level of lightning and High-Intensity Radiated Fields (HIRF) protection design and implementation. 1 Protection of AC systems 28 6. If you are not awake, may you dream that you are on a Hawaiian beach… Review the existing lightning protection system against national and international standards. 2 ALL OWNERS. This PPT contain 88 pages due to time constrain we are only ableThis PPT contain 88 pages, due to time constrain, we are only able Electrogoemetric Design Methods (EGM) Attractive effect of the shielding device is a function of the amplitude of the current of the lightning stroke. The lack of data due to the infrequency of lightning strokes in substations. Other more modern lightning protection systems like the patented Dissipation Array System (D. Main conductors conduct the lightning current towards the water. Lightning Protection Products /; Surge Protection There are reasons why many underwriters offer insurance discounts for lightning protection systems that are  external lightning protection system is to control the lightning strike point and provide the lightning current with a path to earth avoiding damage to the structure . PV modules, utility-interactive inverters, and combiner boxes are identified for use in PV systems. • Such a lightning protection system consists of collectors (air terminals) to intercept lightning strokes, conductors to conduct lightning protection remain the same, new components and techniques are being developed. Hence there is a vital need for protection against direct lightning strikes. 9. The blog is now under development which allows a better user's experience and a better arrangement of our courses and materials. General Industry Information. The substation earthing system comprises of a grid (earth mat) formed by a horizontal buried conductors. Once it approaches the objects on the ground, any of them can be struck. lightning protection that incorporate sharp rods, horizontal and vertical conductors (Faraday Cage) evolving into the “Cone of Protection” and the “Rolling Sphere” techniques for design of lightning protection. The Copper Development Association makes no representation as to the proper, correct or safe design of any lightning protection system. It is placed very near to the equipment and when the lightning occurs the arrester diverts the high voltage wave of lightning to the ground. pdf), Text File (. A. 1 goal is to design a power system that will not present any electrical hazard to the people who Lightning protection systems External lightning protection •Air termination systems •Conductors •Earthing •Shielding of enclosed spaces •Avoiding proximity Internal lightning protection Surge protection Surge protection is not part of the installation of a lightning protection system, rather it is a separate operation. Items to be considered in the design or analysis of this system include the requirements of NFPA 780. A lightning rod ( US, AUS) or lightning conductor ( UK) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike. Direct Lightning Strike. OPR Early streamer emission air terminal. A strike can average 100 million volts of electricity Current of up to 100,000 amperes Can generate 54,000 o F Lightning strikes somewhere on the Earth every second Kills 100 US residents per year Power System-Facts -Lightning. To prevent this, a protection system uses operation of the power system. com § 25. Grounding Design. Complexity in analyzing system in detail ($$$). the lightning protection system from electrically conductive materials. Seminar - Lightning Protection - Free download as Powerpoint Presentation (. In electrical utility power, ground is an actual connection to soil for the primary purpose of lightning protection. Most materials on this page are UL Listed and approved in both Canada and the United States. The PV array is composed of 4 series strings or less, and Installing lightning protection systems in the home costs between $387 and $2,314, averaging most homeowners $1,310. Lightning Protection Systems are passive systems used to protect building and structures from damage caused by lightning and static discharges. Dissipation Arrays and Those Using Early Streamer Emission Air Terminals Are Not Acceptable and Are Not Be Used. The Design Problem 23 licensing of explosives buildings, e. Protection by enclosure Ex ta, tb, tc 29 Flameproof enclosures Ex da, db, dc 30 Enclosed break device Ex nC 30 Powder filling Ex q 31 Special protection Ex s 31 MARKING 32 - 35 Marking in accordance with Directive 2014/34/EU, IEC and EN standards 32 Application areas – equipment categories – equipment protection level 33 Examples of marking for 2. Provides surge protection to Isolating Joints in case of a lightning strike or other faults. Arresters may not protect all of the buswork from lightning flashover, due to distance effect. 6 Structural Safety and Lightning Protection 22 • Structural Safety 22 • Lightning Protection 22 4. Indoor grounding arrangement 2. 3 Protection of photovoltaic systems 41 WHY USE SURGE PROTECTION DEVICES? 1. 0 Lightning Protection Technology Matures – Early Standards 9 6. Dec 17, 2013 · The installation of an external lightning protection system is crucial for power plants to minimize PV system damages. Assess the Lightning Risk associated with the buildings or structures in the facility. functions has created the need to re-evaluate lightning protection design and create new protection systems to compensate for the inadequacy of traditional  2 | ABB OPR lightning protection system. Characteristics of Lightning; Principles of Protection; Precautions for Personnel Cone of Protection; Lightning Protection System; Power Boat Applications; Sail  lightning protection systems and how they affect the system design. Refer to UFC 1-200-01, Design: General Requirements for exhaust stack structural design considerations. Lightning never strikes the same place twice If it’s not raining, or if clouds aren’t overhead, you are safe from lightning Rubber tires protect you from lightning in a car by insulating you from the ground A lightning victim is electrified. There is neither a single rule nor application of a standard that can eliminate the risk of lightning and its transients and noise at telecom sites. Soil resistivity is the key factor that determines the resistance or performance of an electrical grounding system. A severe lightning strike can cost thousands to repair or replace a home s structure, electrical wiring, appliances and electronics. Surge Protection Standards and Design for Electronic Equipment in Railway Systems - Systems Training Toni Ray Systems Engineering & Marketing – Industrial Systems –Industrial Transport Surge Protection Standards and Design for Electronic Equipment in Railway Systems - Systems Training Toni Ray Systems Engineering & Marketing – Industrial Systems –Industrial Transport Surge Diverters are used across Isolating Joints Facilities. The unavailability data of lightning strikes occurrences and its frequency at telecommunication station. please, keep following for the new Release of our blog very soon. Fire Protection Engineer - A graduate of an accredited university or college with a Bachelor of Science Degree in an engineering or related technical field and meeting the qualifications for Member Grade in the Society of Fire Protection Engineers (SFPE) or be a registered Facility Ground System – Primary • Earth Electrode Subsystem IEEE 142-2007 (Green Book) • Fault Protection Subsystem NFPA 70 (NEC ®) • Lightning Protection Subsystem NFPA 780 • Signal Reference Subsystem IEEE 1100-2005 (Emerald Book) – Secondary • Static Protection NFPA 77 • Cathodic Protection NACE SP9999 Explore Lightning Protection Using LFA-M with Free Download of Seminar Report and PPT in PDF and DOC Format. If lightning hits the structure, it will preferentially strike the rod and be conducted to ground through a wire, instead of passing through the structure, A lightning protection system (LPS) can protect a structure from damage caused by being struck by lightning by providing a low-resistance path to ground for the lightning to follow and disperse. While an effective air termination device and above ground lightning protection system is critical to effective protection, proper grounding can keep people and products out of harm’s way. It's not lightning that causes the damage, it's lightning going through places you don't want it to. ppt), PDF File (. • CORROSION ENGINEER • New England C P Inc. If the wind turbine designer developes an understanding of the _undamentals and works with lightning protection component manufacturers, the results should be a protection system which makes the turbine relatively free from lightning damage. For routine maintenance and monitoring of effectiveness of the CP system the following test facilities are provided along the pipeline. But at higher voltages caused by lightning it becomes a conductor At the Heart of All Arresters is the Metal Oxide Varistor (MOV) Video Version www. Figure 6 shows complete lightning mast and shield wire protection. 899 Electrical bonding and protection against static electricity. All barns, regardless of age, should be outfitted with a lightning protection system, commonly referred to as lightning rods. It is the starting point of any electrical grounding design. This document explains overvoltage protection in general and in the context of inverters. Approved for public release; distribution is unlimited. 1 INTRODUCTION It is well known that the resistance of an earth electrode is heavily influenced by the resistivity of the soil in which it is driven and as such, soil resistivity measurements are an important parameter when designing earthing installations. Less intense strokes get by. Lightning masts: a. lightning protection system or ground. Scribd is the world's largest social reading and publishing site. 3 Charger and BatterySet 20 3. Of course, prices vary from location to location and home to home, but you can expect to be within the range of $897 and $1,395 if you want average protection. Knowing at what depth the most conductive soil is located for the site allows the design engineer to model a system to meet the needs of the application. Goals of System Design When considering the design of an electrical distribution system for a given customer and facility, the electrical engineer must consider alternate design approaches that best fit the following overall goals. 2 Protection of DC systems with linear voltage sources 41 6. the design and installation of LPS (Lightning Protection Systems) for structures and buildings, the protection against lightning of services entering the buildings and the protection of electrical and electronic systems. ) from LEC provide additional lightning safety solutions. Surge protection & grounding of telephone lines and RF feeders. 7 Joint Design. While these shunts are required for lightning protection (See Part II, Lightning and Stray Currents), they also provide protection from electrostatic charges caused by the product’s movement. could be useful for the maintenance and the design of transmission lines in the Hellenic System. Grounding and bonding are the basis upon which safety and power quality are built. 0 Scope. Mar 12, 2016 · Example: Calculate Whether Lightning Protection is required or not for following Building. Zipse, Fellow, IEEE Abstract-The successful 200-year-old method of using a (Franklin) rod to collect, control, and convey to earth the awesome and destructive power of lightning has produced other controversial, potential alternate methods. Standard for the Installation of Lightning Lightning begins with a down-conductor which spreads in any direction. IEEE Guide for Direct Lightning Stroke Shielding of Substations 1. 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 Nov 23, 2012 · lightning protection presentation by ambuj mishra Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 3 Earthing and bonding 96 10. Desigr ers thought that protection was not necessary in many cases because the antenna mast was relatively short (10 meters or less). grounding electrode system, proper system grounding of service equipment and separately derived sources and proper equipment grounding for operational frequencies (DC or AC-mains) as well as higher frequencies. 2 (November 2017) l Use of SolarEdge Surge Protection Device in three phase inverters l Updated sample surge protection design drawing for commercial PV system Version 2. 10 Design and Installation Checklist 27 5 Operations and Maintenance 28 5. Lightning presents several hazards including: Fire can start anywhere the exposed lightning channel contacts, penetrates or comes near flammable material (wood, paper, gas pipes, etc) in a building – including structural lumber or insulation inside walls and roofs. Read about design of substation earthing system here. Facility Design Guidelines The Texas A&M University System Lightning Protection Systems 5-1 Campus Specific Information Our lightning protection / earthing product range includes products for protecting buildings from mechanical destruction caused by lightning effects and the associated risk of fire. 9 AnyOther Tests that are Considered Necessaryto Meet the Design Intent 24 Its common and differential protection mode serves to limit voltage surges occurring between the live (L), the neutral (N) and the Earth (PE) to protect the system against the effects of lightning. Same quality RF surge protection products – available for online purchase today! Our eCommerce site offers a broad range of products, same-day shipping, technical information, online support, and more. Overview 1. The most widely used methods for the design of an effective external LPS are the fixed angles method, the It is the measure of lightning strikes per kilometre square per year in the particular area. The protection of the lines is Your facility, technology and other key assets are at risk to lightning strikes. Also, special features of combining overvoltage protection devices with SMA inverters are described. 8 Equipment and Appliances 24 3. 2 CircuitryCheck 20 3. Lightning protection for the building; Protection on incoming lines; Resistibility of system (LPS), bonding procedures, earthing and the installation of surge a Lightning Protection Level (LPL) for the design of the protection procedures. It is similar to the dielectric breakdown of a huge ca-pacitor. The mechanics and 4. Some structural considerations are wind load, lightning protection, and stack support. ArresterWorks. TS NOT MEASUREMENT SENSITIVE DOE-HDBK-1092-98 January 1998 DOE HANDBOOK ELECTRICAL SAFETY U. Consider the sail effect on masts and mast foundations. (NFPA) publishes document # 780 titled . Lightning and Surge Protection Stabilize Circuit Potential and Assist in Proper Operation of: - Communications - Relaying - Computers & Sensitive Electronic Equipment Low Fault Circuit Path Impedance Safety, Safety, Safety Improve Quality of Power Service Grounding and Bonding is Fundamental for a Safe and Reliable Power System tric power system. At normal Voltages the MOV disk is an insulator and will not conduct current. Most commonly used methods of earthing are pipe earthing and plate earthing. c. The Cooper Bussmann combined lightning current and surge arrester (SPD Class I according to IEC 61643-1) is for use in photovoltaic power supply systems. Lightning protection systems have been in use in one fashion or  Extended Mast Terminal for Lightning Protection System Improvement on transmission Lines in Indonesia. Jul 21, 2017 · A lightning protection system creates a conductive path to channel lightning into the ground without damaging the building and its occupants and contents. The contents of this PPT is mainly extracting from our 3 rd Technical Application Paper, please refer to the booklet for more detail. 6 Digital Power Analyzer 23 3. This paper reviews principles of shunt capacitor bank design for substation installation and basic protection techniques. DEHN Air-Termination Tool Page 12 Dimensioning of air-termination rods is an important criterion for creating protected volumes. Lightning protection systems have a remarkable record of protecting against physical danger to people, structural damage to buildings, and failure of internal systems and equipment. to argue for a principle of differentiating the lightning protection system. 5 Digital Multifunction Power Meter 22 3. Protection of substations from lightning energy We also offer a specialized electrical grounding and bonding training course covering the proper use of grounding engineering and simulation software such as how use the RESAP Module of the CDEGS program for analyzing soil resistivity data. The voltage of a lightning stroke may start The contents of this PPT is mainly extracting from our 3 rd Technical Application Paper, please refer to the booklet for more detail. In the real application of LPS, there is no known method that can be providing 100% safety protection against the lightning strikes. Method of protection (surge arrestors, shielding). A diagram of a typical residential lightning protection system Lightning presents several hazards including: Fire can start anywhere the exposed lightning channel contacts, penetrates or comes near flammable material (wood, paper, gas pipes, etc) in a building – including structural lumber or insulation inside walls and roofs. No combination of materials shall be used that will form an electrolytic junction, although it may be impractical to avoid a 3. Components must be UL-listed for lightning protection; products listed for electrical power systems are not up to the challenge of lightning’s extreme current. This video aims to give customers an introduction to The Lightning Protection Institute is a nationwide not-for-profit organization founded in 1955 to promote lightning protection education, awareness, and safety. Prof. The purpose is to evaluate lightning protection performance based on the ‘Leader Potential Concept’. Outline. of proper lightning protection for structures. insurer can also require overvoltage protection. Prior to joining EPRI, Short performed utility studies in the areas of distribution lightning protection, power Article 250 covers the grounding requirements for providing a path to the earth to reduce overvoltage from lightning, and the bonding requirements for a low-impedance fault current path back to the source of the electrical supply to facilitate the opera-tion of overcurrent devices in the event of a ground fault. This protection comes in the form of a lightning protection system (LPS). 0 Origins of Lightning Protection 3 3. 20585 DISTRIBUTION STATEMENT A. The lightning monitoring system 26 5. , theDuty Holder e. May 02, 2015 · • Side Flash – An electrical spark caused bySide Flash – An electrical spark caused by difference in potential that occurs betweendifference in potential that occurs between conductive metal bodies and a component of aconductive metal bodies and a component of a lightning protection system or ground. LPI is dedicated to ensuring that today’s lightning protection systems provide the best possible quality in both materials and installation practices for maximum safety. system. The Lightning Protection Institute is a nationwide not-for-profit organization founded in 1955 to promote lightning protection education, awareness, and safety. This difference allows us to specify its advantages: The active system has a bigger protection radius: it can be more than twice the protection radius of a simple lightning rod, depending on the models. Most low-voltage systems connect one supply conductor to the earth (ground). The lightning protection systems for this design method should be manufactured from materials having highly corrosion-resistive characteristic. You can't do that. Or. Design masts suited for the specific wind. The need for greater capability in 2. Note: The addition of grounding systems (e. 4 Lighting Installation 21 3. instructions applicable to lightning protection and insulation coordination designfor overhead transmission mains. The LPS used in this country and around the world are basically divided into two types: • Conventional or standard LPS i. Lightning flashes to, or nearby, structures are hazardous to people, to the structures themselves, their contents and installations. Oct 5, 2015 Most lightning protection systems on structures are not being maintained. MONITORING. • Prewired combined lightning current and surge arrester for use in photovoltaic generator circuits • For use in photovoltaic installations up to 1000V UCPV To Power System To Earth The MOV Disk is a Semiconductor that is sensitive to Voltage. Also Explore the Seminar Topics Paper on Lightning Protection Using LFA-M with Abstract or Synopsis, Documentation on Advantages and Disadvantages, Base Paper Presentation Slides for IEEE Final Year Electronics and Telecommunication Engineering or ECE Students for the year 2015 2016. Lightning & Surge Technologies 1. Study of the maintenance aspects of the lightning protection system and suggest suitable corrective actions. PhD, PE Pacific Islands Program Manager, HIP SMO REQUIREMENTS Technical Operations Sustain facility and equipment by performing upgrades and modifications to meet: FAA installation standards National Airspace System (NAS) configuration criteria Flight Plan 2004 – 2008 performance goals National Electric Code (NEC Southern Lightning Engineers have been designing, installing and maintaining lightning protection for all types of buildings and structures for more than 30 years. This information is presented as a guide only and the reader is cautioned that the design of any lightning protection system and devices is the responsibility of the electrical engineer. All known methods of shielding from direct (Secure protection system should not operate for normal system operation or when not required to operate to clear a fault) – with appropriate operating levels for fault detection functions (current, voltage and impedance), – with selective protection systems, – with supervision by voltage, impedance, load-blinding and directional In the selection process of the materials for the design of a lightning protection grounding system, the corrosion effect can be minimised by avoiding the use of unsuitable materials in an aggressive environment , , . May 2, 2015 Purpose of Lightning Protection • The practical safe guarding of before designing a lightning protection systemlightning protection system 1. Dec 21, 2016 presentation about lightning and lightning protection systems both conventional and non-conventional. It is estimated that there are 40 to 80 lightning strikes per square mile each year. should consult a lightning safety consultant to determine whether installation of a light-ning protection system would be required to achieve sufficient protection for all building components from lightning. 4 Faraday Shield System. AC Power Surge Arrester Type 1 Surge Protectors. Software for design and calculation of lightning protection systems. 8 Joint Test. Building safety grounds provide a return path specifically for fault current. Our 2-Day Building Electrical Systems training course addresses all typical electrical subsystems existing in buildings from the input service supply to the more complex protection and control systems required in order to achieve maximum performance. 6/11/ system disruptions becomes essentials. Lightning strikes are not the only sources of voltage surges in the electrical system. 0 Early Field Trials and Investigation of Failures - Purfleet 6 4. The following are a few of the more frequently encountered causes of transient voltage surges: 1. Lightning rods come in many different forms, including hollow, solid, pointed, rounded, flat strips, or even bristle brush-like. Grounding fundamentals for Lightning Protection Protector throughput voltage lower than other panel designs using long ground conductors. OPR early streamer emission (ESE) air terminals are especially effective for lightning protection of industrial sites, administrative or public buildings, monuments and open-air sites such as sports grounds. Calculate No of Down Conductor for Lightning Protection Area of Building / Structure: Length of Building (L) = 60 Meter. The uncertainty, complexity, and cost Introduction to System Protection If you are still awake, nudge your sleeping neighbor and tell him/her that the lecture is over and it is almost time for the next lecture, which may actually prove to be an interesting and informative lecture (unlike this one). In the affirmative case that lightning protection is necessary, we must calculate what is the level of protection or security factor to apply at this structure (I, II 4. If you continue browsing the site, you agree to the use of cookies on this website. Only allow strokes that will not cause ßashover or damage to protected object. protection explosion, earthquake, lightning, smoke and water damage. Outdoor grounding arrangement 3. higher in the tropics. Danger for People (h) It is the factor of presence of people and panic in the building in case of a lightning strike. Design the lightning protection system The standards define an effective lightning protection system as a set of equipment and devices to capture (never to attract) lightning and conduct it safely to ground. You can find the protective angle ( α) in the table for the most com - mon interception rods of up to 2 m in length. lightning Mast6, located north of the control building. Refer to and SMACNA GSSDC, Guide for Steel Stack Design and Construction for additional information. THE EXPERTS IN ELECTRICAL TEST, MONITORING & SAFETY EQUIPMENT Lightning is the most frequent cause of overvoltages on distribution systems. 0 Further Development of the Zone of Protection in Aircraft Lightning Protection Market to Exceed USD 3. codes and standards for lightning protection but to understand the basic physics associated with lightning protection systems and how they affect the system design. Air-termination system / Down conductor / Isolated Lightning Protection Micronesia Project Update Phase II (FY07 & FY08) Francis L. 7 Busbar Trunking System 23 3. During a storm, when propagation field conditions are favorable, an OPR ESE air terminal will generate an upward leader. Earth fault current scenarios for EPR design analysis Fault scenarios include direct and indirect effects from lightning, DC earth faults (live DC circuit connection to analyze a lightning protection system design in detail. Lightning Protection Systems. 7 Connection to the Power Grid 22 4. 0 Definitions. But the use of composite materials in modern airliners like the Boeing 787, with a fuselage made predominantly of carbon fiber, has required additional design features, such as putting some metal back into the fuselage for lightning protection. Two different lightning systems were installed to two different PV technology Power Plant systems. 0 Origins of the Protected Zone Concept 7 5. Dr. electrical installation, lightning protection system (LPS), electrostatic protected areas (EPA), test and inspection etc. Surge voltages associated with switching capacitors . 1 Design and installation of lightning electromagnetic pulse protection measures system (LPMS) 91 10. An expert on lightning protection must determine for each PV system which measures are necessary. HoE, is directed to Chapter 9 in the first instance and notify the shall Methods of Earthing There are several methods of earthing like wire or strip earthing, rod earthing, pipe earthing, plate earthing or earthing through water mains. The complexity and economics involved in analyzing a system in detail. abb. Equipment losses and resulting downtime should be obvious. A diagram of a typical residential lightning protection system. External protection is required to attract the lightning and redirect it to the ground, during which SPDs only absorb residual energy. 9 billion by 2025; according to a new research report by Global Market Insights, Inc. anodes, transformer-rectifiers, cables), potential attenuation calculations for justification of drain point spacing if any, In other words, to connect the metallic parts of electric machinery and devices to the earth plate or earth electrode (which is buried in the moisture earth) through a thick conductor wire (which has very low resistance) for safety purpose is known as Earthing or grounding. lightning protection system design ppt