Electrical Transmission and Substation Structures 2022
Fall Protection and Walkability: Analytical Methodology for Lattice Towers
Publication: Electrical Transmission and Substation Structures 2022: Innovating for Critical Global Infrastructure
ABSTRACT
When combined, OSHA 1926.502 and IEEE 1307 provide requirements and considerations for qualified electrical workers to safely climb transmission and distribution structures. Meeting these requirements is especially challenging for transmission line lattice towers as most were designed and constructed prior to these standards. Most industry-specific transmission line design software are incapable of proper analysis; therefore, manual calculations must be performed to determine the viability of safely climbing and anchoring to these structures. This paper provides a brief overview of these requirements, an approach to selecting walkable members and anchoring points, and practical methods for calculating the structural capacity of these structures for climbing. Calculations will include the required loading requirements for anchor points and the combined axial and flexural calculations for walkable members using ASCE 10-15 and AISC 360.
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REFERENCES
AISC (American Institute of Steel Construction). (2010) Specifications for Structural Steel buildings, Standard ANSI/AISC 360-10. Fourth printing. AISC, Chicago, IL.
AISC (American Institute of Steel Construction). (2017) Steel Construction Manual. 15th Ed. AISC, Chicago, IL.
ASCE (American Society of Civil Engineers). (2015) Design of Latticed Steel Transmission Structures, Standard ASCE/SEI 10-15. Third printing. ASCE, Reston, VA.
ASCE (American Society of Civil Engineers). (2009) Design of Latticed Steel Transmission Structures, Manual of Practice ASCE/SEI 74. Third printing. ASCE, Reston, VA.
Firl, C. (2015). “Fall protection regulations for utilities.” Electric Safety & Arc Flash Handbook, 10, 26-29.
IEEE (Institute of Electrical and Electronics Engineers). (2004) IEEE Standard for Fall Protection for Utility Work,Standard 1307-2004. IEEE.
McNulty, W. (2010). Single Angle Design Manual. https://www.lulu.com/en/us/shop/whitney-mcnulty/single-angle-design-manual/paperback/product-1rm6gvrz.html?page=1&pageSize=4
OSHA (Occupational Safety and Health Administration). Electric power generation, transmission, and distribution,Regulations (Standards – 29 CFR 1910.269). United States Department of Labor, Washington, DC.
OSHA (Occupational Safety and Health Administration). Fall protection systems criteria and practices,Regulations (Standards - 29 CFR 1926.502). United States Department of Labor, Washington, DC.
Power Line Systems (2021). PLS-CADD. http://www.powerlinesystems.com/plscadd.
Power Line Systems (2021). TOWER. https://www.powerlinesystems.com/tower
Information & Authors
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Published In
Electrical Transmission and Substation Structures 2022: Innovating for Critical Global Infrastructure
Pages: 196 - 206
Editor: Tim Cashman
ISBN (Online): 978-0-7844-8446-3
Copyright
© 2022 American Society of Civil Engineers.
History
Published online: Sep 20, 2022
Published in print: Sep 20, 2022
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