IEEE P628/D2, Nov 2019
IEEE Approved Draft Standard Criteria for the Design, Installation, and Qualification of Raceway Systems for Class 1E Circuits for Nuclear Power Generating Stations
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- Language: English
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- Language: English
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About This Item
IEEE P628/D2, Nov 2019 is a draft standard focused on the design, installation, and qualification of raceway systems for Class 1E circuits in nuclear power generating stations. It addresses the engineering details that help protect safety-related wiring paths, including routing, support, and qualification considerations for demanding plant environments. For projects involving nuclear instrumentation, control, and power circuits, this document helps define consistent expectations for reliable raceway system performance.
IEEE P628/D2, Nov 2019 overview
This draft standard addresses raceway systems that carry Class 1E circuits, which are associated with safety-related functions in nuclear power applications. IEEE P628/D2, Nov 2019 provides technical criteria for how these systems should be designed, installed, and qualified so they can better withstand the conditions they may encounter in service. The document is relevant to engineers and project teams that need controlled, repeatable requirements for routing and protecting critical conductors in nuclear plant infrastructure.
Typical use cases
IEEE P628/D2, Nov 2019 is typically used when specifying raceways for safety-related circuit routing in nuclear generating stations. It may support the selection and installation of conduits, cable tray systems, supports, and related hardware for Class 1E wiring. The standard is also useful during qualification review, procurement of raceway components, and verification of installation practices where circuit integrity, environmental suitability, and system consistency are important.
Why this standard matters
In nuclear power applications, raceway systems are not just physical pathways; they are part of the overall safety approach for critical circuits. IEEE P628/D2, Nov 2019 helps establish a shared technical basis for compliance, installation control, and qualification expectations. That can reduce ambiguity during design review, fabrication, and field work, while supporting consistency across projects. For owners, engineers, and inspectors, the draft standard can also help manage risk and improve confidence in the performance of Class 1E circuit raceways.
- Class 1E circuit raceway criteria
- Design and installation guidance
- Qualification for nuclear service conditions
- Routing and protection of safety-related wiring
- Nuclear plant engineering applications
- Publication Date: 2019
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Nuclear Engineering; Power, Energy and Industry Applications; Geoscience
- Official IEEE: Doi link
- New Version Available: P628 (2019)
- This Version: P628 (2019)
- Previous Version: P628 (2011)
- Previous Version: P628 (2011)
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