IEEE P2939/D1, Sept 2022

IEEE P2939/D1, Sept 2022 is an early draft technical guide focused on the joint use of electric power transmission and distribution facilities and equipment. It addresses how T&D assets may be shared or coordinated across power systems, with attention to engineering compatibility, operating practices, and infrastructure constraints. For utilities, planners, and equipment stakeholders, this draft matters because shared-use arrangements can affect reliability, safety, and system performance across interconnected power and communications environments.

What is IEEE P2939/D1, Sept 2022?

This draft guide provides a framework for understanding the joint use of electric power transmission and distribution facilities and equipment in practical utility settings. IEEE P2939/D1, Sept 2022 is intended to support consistent technical thinking around shared assets, including how equipment, materials, and operating conditions may interact across T&D applications. Because it is a draft document, it is best read as guidance for engineering alignment, review, and planning rather than a finalized rule set.

Where is IEEE P2939/D1, Sept 2022 used?

IEEE P2939/D1, Sept 2022 is most relevant in transmission corridors, distribution networks, and utility projects where multiple functions share the same structures, rights-of-way, or equipment assemblies. It may be used during system planning, asset coordination, design review, and operational analysis for facilities that combine power infrastructure with related communications or control needs. The document is also useful when evaluating joint-use arrangements involving conductors, support structures, insulation considerations, and other engineered materials in T&D environments.

Why is IEEE P2939/D1, Sept 2022 important?

This draft guide helps improve consistency when organizations evaluate shared transmission and distribution resources. IEEE P2939/D1, Sept 2022 can support better design decisions, clearer procurement requirements, and more disciplined engineering review for assets that must perform reliably in combined-use conditions. It is also valuable for managing risk, since joint-use arrangements can introduce compatibility, access, maintenance, and performance issues that affect both power delivery and related system functions.

• Joint-use transmission and distribution guidance
• Shared facility and equipment coordination
• Engineering review for T&D applications
• Design, maintenance, and operating compatibility
• Reliability and risk considerations