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Author: Vladimir Gurevich
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110723190
Category : Technology & Engineering
Languages : en
Pages : 308
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Book Description
How do you protect electrical systems from high energy electromagnetic pulses? This book completes the overview of systems and practices against EMPs from high altitude sources started with the previous "Protecting Electrical Equipment - Good Practices for preventing high altitude electromagnetic pulse impacts", including practical protection methods and means for evaluating their effectiveness.
Author: Vladimir Gurevich
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110723190
Category : Technology & Engineering
Languages : en
Pages : 308
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Book Description
How do you protect electrical systems from high energy electromagnetic pulses? This book completes the overview of systems and practices against EMPs from high altitude sources started with the previous "Protecting Electrical Equipment - Good Practices for preventing high altitude electromagnetic pulse impacts", including practical protection methods and means for evaluating their effectiveness.
Author: Vladimir Gurevich
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: A. Wright
Publisher: Springer Science & Business Media
ISBN: 1461530725
Category : Technology & Engineering
Languages : en
Pages : 541
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Book Description
Electrical Power System Protection provides practising engineers with the most up-to-date and comprehensive one -volume reference and tutorial on power system protection available. Concentrating on fundamental methods and technology and with extensive examples drawn from current practice internationally, this book will be a major reference tool for engineers involved with and affected by power system protection.
Author: Vladimir Gurevich
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 311072314X
Category : Technology & Engineering
Languages : en
Pages : 216
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Book Description
How do you protect electrical systems from high energy electromagnetic pulses? This book completes the overview of systems and practices against EMPs from high altitude sources started with the previous "Protecting Electrical Equipment - Good Practices for preventing high altitude electromagnetic pulse impacts", including practical protection methods and means for evaluating their effectiveness.
Author: A. Bhatia
Publisher: CreateSpace
ISBN: 9781508517160
Category : Technology & Engineering
Languages : en
Pages : 42
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Book Description
Too much current flowing through an electric circuit can damage the circuit and can create a safety hazard. How much current is "too much current"? That depends on the circuit and its components. For some circuits, 1 ampere would be too much current, while for other circuits 1 ampere would be perfectly acceptable. Circuit protection devices protect electrical equipment by rapidly disconnecting power to components in the event of an abnormal overload conditions resulting from excessive voltages, ground faults, and accidental shorting of a circuit. Two types of circuit protection devices are common; fuses and circuit breakers both operate by opening and interrupting current to the circuit. A fuse or circuit breaker is designed to create an open circuit if too much current flows through it. You can think of it as a switch that automatically turns itself off if the current through it exceeds a certain level. When a fuse is "blown" by having too much current pass through it, the fuse is ruined and must be replaced. On the other hand, when a circuit breaker is "tripped" by excessive current, the circuit breaker can be reset and used again, instead of being discarded. The choice of which to use depends on the specific application, circuit type, its electrical specifications, space available, environmental constraints, and customer preference. In the US, the National Electric Code (NEC) exists to guide electricians in the proper installation of electrical equipment and defines the specific requirements for circuit protection. In Canada the Canadian Electric Code (CEC) exists to provide similar guidance. Other areas of the world have equivalent country or local codes.A proper circuit protection strategy reduces long-term maintenance needs and other costs, and minimizes system downtime. This 3-hr Quick Book provides an overview of circuit protection devices and is based entirely on Naval Education and Training Materials (NAVEDTRA 14175), Electricity and Electronic Training Series; Module-3 and covers Chapter 2 titled “Circuit Protection Devices”. This course is aimed at students, professional engineers, service technicians, energy auditors, operational & maintenance personnel, facility engineers and general audience. At the conclusion of this course, the reader will be able to:• State the reasons why circuit protection is needed.• Define a direct short, an excessive current condition, and an excessive heat condition.• State the way in which circuit protection devices are connected in a circuit.• Identify two types of circuit protection devices and learn their types and characteristics.• List the three time delay ratings of circuit breakers.• Define selective tripping and state why it is used.• Identify the factors used in selecting circuit breakers.• List the methods of checking and the items to check when replacing and/or maintaining fuses and circuit breakers.
Author: National Fire Protection Association. Technical Committee on Electrical Equipment Maintenance
Publisher:
ISBN:
Category : Electric machinery
Languages : en
Pages : 148
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Book Description
Author: Lee Clyde Ilsley
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 18
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Book Description
Author: Geoffrey Bottrill
Publisher: Elsevier
ISBN: 0080480160
Category : Technology & Engineering
Languages : en
Pages : 423
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Book Description
This book provides the reader with an understanding of the hazards involved in using electrical equipment in Potentially Explosive Atmospheres. It is based on the newly adopted international IEC79 Series of Standards that are now harmonizing and replacing older national Standards. Explosion-proof installations can be expensive to design, install and operate. The strategies and techniques described in this book can significantly reduce costs whilst maintaining plant safety. The book explains the associated terminology and its correct use - from Area Classification through to the selection of explosion-protected electrical apparatus, describing how protection is achieved and maintained in line with these international requirements. The IEC standards require that engineering staff and their management are trained effectively and safely in Hazardous Areas, and this book is designed to help fulfill that need. A basic understanding of instrumentation and electrical theory would be of benefit to the reader, but no previous knowledge of hazardous area installation is required. * An engineer's guide to the hazards and best practice for using electrical equipment in Potentially Explosive Atmospheres. * Fully in line with the newly adopted international standards, the IEC79 series. * Clear explanations of terminology and background information make this the most accessible book on this subject.
Author: National Fire Protection Association
Publisher: Delmar Pub
ISBN: 9780877659150
Category : Technology & Engineering
Languages : en
Pages : 870
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Book Description
Safe, efficient, code-compliant electrical installations are made simple with the latest publication of this widely popular resource. Like its highly successful previous editions, the National Electrical Code? 2011 LOOSE LEAF combines solid, thorough, research-based content with the tools you need to build an in-depth understanding of the most important topics. It provides the full text of the updated Code regulations alongside expert commentary from code specialists, offering code rationale, clarifications for new and updated rules, and practical, real-world advice on how to apply the code. And in a loose-leaf format, it's easy to customize your experience with the Code by adding job- and situation- specific materials. New to the 2011 edition are articles including first-time Article 399 on October, Overhead Conductors with over 600 volts, first-time Article 694 on Small Wind Electric Systems, first-time Article 840 on Premises Powered Broadband Communications Systems, and more. This winning combination has created a valuable reference for those in or entering careers in electrical design, installation, inspection, and safety.
Author: NFPA (National Fire Prevention Association)
Publisher: National Fire Protection Association (NFPA)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 148
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Book Description
Dedicated to the importance of reducing the dangers in electrical safety-related work hazards, the 2004 Edition of NFPA 70E Standard for Electrical Safety in the Workplace focuses on injury and incident prevention. Issues covered include maintenance, multi-employer relationships, special equipment requirements, installation, and more! Revised for the most up-to-date standards, this comprehensive book provides all the information needed to ensure a safe workplace.
