Chapter
Dec 20, 2023
Chapter 4
Deflection Criteria (For Operational Loading)
Publication: Substation Structure Design Guide: Recommended Practice for Design and Use
Abstract
Deflection and rotation of substation structures and members can affect the mechanical operation of supported electrical equipment, reduce electrical clearances, and cause unpredicted stress in structures, insulators, connectors, and rigid bus conductors. The selection of the deflection limits applicable to a specific application is the responsibility of the owner. Structures supporting stranded conductors or overhead line dead ends typically can withstand structure deflections without detrimental effects on line operation. When evaluating the deflection of a multiple-use structure, the deflection limits applicable to any point on the structure are determined by the classification of the structure from that location upward. The fixity of the substation structure's base plate and foundation can affect the deflection of the structure. Net deflection for horizontal structure members is currently the substation structure industry standard when evaluating deflection.
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Reference
IEEE (Institute of Electrical and Electronics Engineers). 2008. Guide for bus design in air insulated substations. IEEE 605-2008. New York: IEEE.
Information & Authors
Information
Published In
Substation Structure Design Guide: Recommended Practice for Design and Use
Pages: 81 - 88
Editor: George T. Watson, P.E.
ISBN (Print): 978-0-7844-1617-4
ISBN (Online): 978-0-7844-8517-0
ISBN (Online): 978-0-7844-8518-7
Copyright
© 2023 by the American Society of Civil Engineers.
History
Published online: Dec 20, 2023
Published in print: Dec 28, 2023
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ASCE Technical Topics:
- Architectural engineering
- Building insulation
- Building systems
- Connections (structural)
- Continuum mechanics
- Design (by type)
- Dynamics (solid mechanics)
- Electrical equipment
- Energy infrastructure
- Engineering fundamentals
- Engineering mechanics
- Equipment and machinery
- Infrastructure
- Lifeline systems
- Load factors
- Motion (dynamics)
- Power transmission substations
- Rotation
- Solid mechanics
- Structural behavior
- Structural deflection
- Structural design
- Structural engineering
- Structural members
- Structural systems
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