Grounding Electrical Distribution Systems
- Length: 158 pages
- Edition: 1
- Language: English
- Publisher: River Publishers
- Publication Date: 2021-12-16
- ISBN-10: 8770226172
- ISBN-13: 9788770226172
- Sales Rank: #0 (See Top 100 Books)
The first concern and the most important reason for proper grounding techniques are to protect people from the effects of ground-faults and lightning. Creating an effective ground-fault current path to assure the operation of overcurrent protective devices on solidly grounded systems and to limit the voltage-rise on equipment frames during fault condition is of paramount importance.
The next concern is building and equipment protection. In this case, providing low impedance bonding and grounding paths between the system source, the electrical service and downstream equipment will serve to limit hazardous voltages due to faults and especially, lightning, A low resistance-to-ground system will serve to limit the voltage rise on systems and equipment.
But of equal importance is the length of the grounding electrode conductor. It is critical to limit the length of this conductor due to the increased impedance of lightning currents.
And finally, a properly installed grounding system will minimize the effects of electrical noise on sensitive circuits and stabilize the voltage-to-ground during normal operation.
This volume has extensive information on grounding electrical systems and equipment.
This information includes the following topics:
- System Grounding
- Equipment Grounding
- Bonding
- The Grounding Electrode System
- Solidly Grounded Systems
- Impedance Grounded Systems
- Grounding Separately-Derived Systems
- Calculating Ground-Fault Currents
- Conductor Insulation Withstand Ratings
- Conductor Fusing or Melting Currents
- Functional Grounding
- Lightning Protection
Readership: Anyone involved with designing a proper grounding system that will serve to protect people and equipment from the effects of ground faults and lightning. And to design a proper grounding system for special applications, including Solar and Wind Powered Systems.
Cover Half Title Title Page Copyright Page Table of Contents Introduction Chapter 1: Grounded and Ungrounded Systems System Grounding Direct-Current Systems Ungrounded or Impedance Grounded Systems Definitions Chapter 2: A Practical Example Chapter 3: The Lightning Phenomenon Chapter 4: The Grounding Electrode System Chapter 5: Bonding Load-Side Bonding Jumpers Bonding Metal Water Pipes and Exposed Structural Steel Bonding in Hazardous (Classified) Locations Health Care Facilities Swimming Pools, Fountains, and Similar Installations Chapter 6: Ground-Fault Protection of Equipment Chapter 7: Overcurrent Protection-Current Limitation Selective-Coordination Electrical Safety in the Workplace NFPA 70E NFPA 70 E Article 100 Definitions Chapter 8: Review of NEC Article 250 Grounding and Bonding Review Two or More Buildings Supplied by A Feeder(s) or Branch Circuit(s) Grounding Electrode System and Grounding Electrode Conductor Review Grounding of Systems or Circuits of over 1000 volts Chapter 9: Special Considerations Solar Photovoltaic Systems Equipment Grounding Grounding Electrode System Grounding and Equipotential Bonding Agricultural Buildings (Article 547) Equipment Bonding Swimming Pools. Fountains, and Similar Installations-Grounding and Bonding Wiring Methods Equipotential Bonding Article 517 Index About the Author
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