IEEE 1793-2012
IEEE Guide for Planning and Designing Transition Facilities between Overhead and Underground Transmission Lines
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- Language: English
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- Language: English
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About This Item
IEEE 1793-2012 is a technical guide for planning and designing transition facilities between overhead and underground transmission lines. It focuses on the engineering considerations needed where two line types connect, helping utilities and designers address electrical performance, installation constraints, and long-term reliability. For power transmission projects, this standard can support more consistent design decisions and reduce uncertainty at interfaces that are often complex and sensitive to site conditions.
IEEE 1793-2012 overview
This standard provides guidance for transition facilities used in transmission systems that combine overhead and underground line sections. IEEE 1793-2012 is relevant to planning, layout, and design decisions where conductors, terminations, structures, and associated components must work together across a change in installation method. It is intended to help engineers consider practical technical factors in power transmission, while supporting coordinated design across utility, industrial, and infrastructure applications.
Typical use cases
IEEE 1793-2012 is commonly used when designing new transmission routes that require an overhead-to-underground transition, or when upgrading existing corridors with mixed line construction. It may also support specification work for transition structures, cable terminations, and related interface equipment in substations or line entries. The guide is useful in utility planning, transmission engineering, and project coordination where electrical, mechanical, and environmental constraints must be balanced for a reliable installation.
Why this standard matters
Transition points between overhead and underground transmission lines can introduce design and operational risks if they are not planned carefully. IEEE 1793-2012 helps establish a more consistent technical basis for evaluating these interfaces, which can improve safety, procurement clarity, and design control. Using a recognized guide can also support better coordination between stakeholders, reduce rework during construction, and help teams select solutions that are appropriate for the intended service conditions.
- Overhead-to-underground transmission transitions
- Planning and design guidance for interface facilities
- Transmission-line structures and terminations
- Utility and infrastructure engineering applications
- Design consistency and risk reduction
- Publication Date: 2013
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems; Communication, Networking and Broadcast Technologies
- Official IEEE: Doi link
- This Version: 1793 (2013)
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