Grounding and lightning protection. Volume 5
- Stone and Webster Engineering Corp., Boston, MA (United States)
Grounding systems protect personnel and equipment by isolating faulted systems and dissipating transient currents. Lightning protection systems minimize the possible consequences of a direct strike by lightning. This volume focuses on design requirements of the grounding system and on present-day concepts used in the design of lightning protection systems. Various types of grounding designs are presented, and their advantages and disadvantages discussed. Safety, of course, is the primary concern of any grounding system. Methods are shown for grounding the non-current-carrying parts of electrical equipment to reduce shock hazards to personnel. Lightning protection systems are installed on tall structures (such as chimneys and cooling towers) to minimize the possibility of structural damage caused by direct lightning strokes. These strokes may carry currents of 200,000 A or more. The volume examines the formation and characteristics of lightning strokes and the way stroke characteristics influence the design of lightning protection systems. Because a large portion of the grounding system is buried in soil or concrete, it is not readily accessible for inspection or repair after its installation. The volume details the careful selection and sizing of materials needed to ensure a long, maintenance-free life for the system. Industry standards and procedures for testing the adequacy of the grounding system are also discussed.
- Research Organization:
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Stone and Webster Engineering Corp., Boston, MA (United States)
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 362646
- Report Number(s):
- EPRI-EL-5036/V5; TRN: AHC29926%%301
- Resource Relation:
- Other Information: PBD: 1987; Related Information: Power plant electrical reference series
- Country of Publication:
- United States
- Language:
- English
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