Lightning and the protection of electric systems Download PDF EPUB FB2
However, methods for lightning special protection cannot be found in the code books, i.e.; Mational Electrical Code (NEC). In less than 20 years, cellular mobile towers have proliferated on every continent, and are perfect lightning targets.
To a lesser extent, AM, FM, and TV towers have also sprouted, sometimes sharing with cell systems. This book is very good at covering a lot of basic lightning science related to lightning protection systems. It is written for scientists, engineers, and Lightning and the protection of electric systems book who deal with systems that protect buildings, aircraft, and the people inside them from by: Lightning and the protection of electric systems, reprinted from a series of articles in the General electric review.
Lightning protection systems have evolved over the years, from the simple Franklin Rod, followed by the Faraday cage method, to the modern, non-conventional lightning protection systems. A number of products are available in the market to ensure reliable protection of facilities against direct lightning.
Scope. This document shall cover traditional lightning protection system installation requirements for the following: (1) Ordinary structures (2) Miscellaneous structures and special occupancies (3) Heavy-duty stacks (4) Structures containing flammable vapors, flammable gases, or liquids that can give off flammable vapors(5) Structures housing explosive materials(6).
• Lightning does not have to directly strike a facility to do real damage. • Protection currently in place may be fine for normal surges caused by load switching and utility transients, but will not be effective against lightning.
They may even put system equipment at greater risk by providing a pathway through sensitive equipment. The international lightning protection standard IEC describes how direct lightning strikes of up to kA are safely arrested. The current is coupled into the earthing system and, due to the voltage drop at the earthing resistor, half of the lightning current is coupled into the internal installation.
This job is assigned to electrical protection systems. It encompasses apparatus protection and system protection. Here, on this page you will find 10+ ABB’s power system protection practices that can be of great help to protection engineers and others.
Guides are free to download. Electrical Power System by JB Gupta is very useful for basics ideas of power system and best for competitive exams And topics are covered in sufficient book for power system courses.
Book Name – A Course In Power Systems By JB Gupta Author – J B Gupta. Lightning Protection Systems. Lightning Protection Systems are not only one of the most expensive infrastructure components of a building, but is also one of the least understood.
In the United States, most industry and the government facilities are protected by NFPA Standard for the Installation of Lightning Protection Systems. IEEE, the Green Book, differentiates between "static grounding" and "lightning grounding," by which it means bonding in the former case and earthing in the latter.
Bonding, which is addressed in detail in the NEC Art.Part V, isn't the concern here. Our concern is the earth connection, because you need it for lightning protection.
Description: This book will allow you to gain practical skills and know-how in grounding, bonding, lightning & surge protection. Few topics generate as much controversy and argument as that of grounding and the associated topics of surge protection, shielding and lightning protection of electrical and electronic systems.
The lightning protection of common buildings (common structures), including their installations and content as well as persons.
The European Union (EU) accepted the IEC standard series and transferred it into the European EN standard series. The standard series is mandatory for all members of the EU. The lightning current is the primary source of damages and malfunctions. Proper earthing is a basic protection against AC line disturbances.
This applies whether the source of the disturbance is lightning, power-system switching activities, or faults in the. Lightning protection system for a building or structure 3 Lightning detection and warning systems 4 Role of grounding in lightning protection systems 5 Bonding of grounding systems 5 Surge protection 6 Maintenance of lightning protection systems 7 Additional information 7.
Power System Protection Part – 1 ed Tawfeeq 1 Power System Protection Lecture Notes Mohammed T. Lazim The principal electrical system faults are short circuits and overloads. Insulation breakdown due to inherent weakness Lightning Birds and animals bridging insulators.
The contents of the book, distributed over 23 chapters, covers all aspects of lightning protection including lightning parameters of engineering interest, the evaluation of the risk imposed by lightning strikes, the art of installing lightning protection systems on various structures, basic principles and procedures necessary to protect Reviews: 4.
Designing a lightning protection system [3 MB] Lightning protection system [ MB] External lightning protection [17 MB] Internal lightning protection [ MB] Protection of electrical and electronic systems against LEMP [ MB] Selection, installation and assembly of surge protective devices (SPDs) [ MB] White papers: Surge.
Protection of Aircraft Electrical/Electronic Systems Against the Indirect Effects of Lightning, dated Decemis cancelled. Background. Regulatory Applicability.
The standards for aircraft electrical and electronic system lightning protection are based on the aircraft's potential for lightning exposure and the. overcome common obstacles to lightning protection system installation such as: Today, nVent ERICO has designed and installed lightning protection systems for: Our entire range of products systemically works to create complete facility electrical protection: The nVent ERICO Six Point Plan of Protection.
This provides a coordinated approach to. Protection of wind turbine rotor blades against lightning is described in IEC –24 8: all lightning protection systems must follow these regulations.
All wind turbines need to have a lightning protection system (LPS). The lightning protection level (LPL) is generally recommended to be LPL1, which is the highest level of protection. Protection of structures is the domain of NFPA Electrical-system protection is the domain of the NEC, and NFPA covers traditional lightning protection systems.
It does not cover lightning protection system installation requirements for early streamer emission systems or charge dissipation systems. The primary reason for a lightning protection system is to route that electrical energy to a less destructive path to ground — instead of traveling through the building’s electrical wiring, water piping, structure, or low-voltage cabling paths where it could create significant chaos inside the building.
Protect your people, processes and facility from lightning strikes. Lightning accounts for more than $1 billion annually in structural damage to buildings in the United States alone, according to Underwriters Laboratories, Inc.
Reliable protection of industrial and commercial operations and personnel demands a systematic and comprehensive approach to minimizing threats caused by strikes, and.
The problem of protection of power systems against lightning can be studied under the following heads: 1. Protection of power stations and substations from direct lightning strokes 2. Protection of overhead transmission lines from direct lightning strokes 3.
Protection of electrical equipment from travelling waves. LIGHTNING PROTECTION SYSTEM 1. THE LIGHTNING MECHANISM Lightning is an electrical discharge either between the opposite charged regions within a cloud or between the lower region of a cloud and the ground.
The former event is a cloud-to-cloud discharge, while the latter, known as. However, methods for lightning protection cannot be found in the code books, i.e.; National Electrical Code (NEC) or the National Electrical Safety Code (NESC). Per the scopes of these two well known codes, lightning is not covered whatsoever, yet they are relied upon for practically all general construction in the United States.
Abstract. Lightning discharges constitute the main cause of most non-programmed outages of electric systems. International statistics show that about 65 % of line outages originate from lightning strokes that hit the overhead transmission lines .
It is certainly possible to reduce the number of line outages to an acceptable level through a convenient protection scheme, with an adequate. National Fire Protection Association (NFPA)Standard for the Installation of Lightning Protection Systems Underwriter’s Laboratory (UL), Marking and Application Guide for Lightning Protection UL 96, Lightning Protection Components UL 96A, Installation Requirements for Lightning Protection Systems.
The dangers lightning and electrical surges present are very real. Lightning could strike your home, causing extensive damage.
Lightning protection can help you limit your risk of lightning damage, and help in protecting your home from lightning surge. So take time to review some steps you can take to help protect yourself and your property.
The book concludes by studying the action of lightning's electrical and magnetic fields and the lightning current on industrial premises, power transmission lines, underground communications, aircraft and their electrical circuits, and the induction of a dangerous overvoltage.This on-the-job reference offers complete coverage of all technical aspects of electrical earthing and bonding with the commentary and guidance you need to interpret and apply the earthing & bonding requirements of the 17th Edition of the IET Wiring Regulations (BS w/ Amendment No.
)—the electrical code used throughout the United Kingdom and the IEC world.Protecting Electrical PV Systems from the Effects of Lightning Introduction By their very nature, photovoltaic (PV) arrays are generally constructed in large, open, and unobstructed locations.
If lightning occurrences are present in those locations, the system may be highly susceptible to a lightning strike.