IEEE 400.2-2024
IEEE Guide for Field Testing of Shielded Power Cable Systems Using Very Low Frequency (VLF) (less than 1 Hz) - Redline
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- Language: English
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About This Item
IEEE 400.2-2024 is a technical guide for field testing shielded power cable systems using very low frequency (VLF) signals below 1 Hz. It focuses on how to evaluate cable insulation and related components in a practical, on-site setting, helping users apply a consistent testing approach. In power, energy, and industry applications, this matters because reliable field test methods can support maintenance decisions, improve condition assessment, and reduce uncertainty before cable systems are returned to service.
About IEEE 400.2-2024
This standard addresses the use of VLF field testing for shielded power cable systems, with emphasis on insulation behavior under low-frequency test conditions. IEEE 400.2-2024 is intended to guide testing practice rather than define a universal cable design requirement, so it is especially relevant when comparing results across similar systems or planning maintenance work. As a redline edition, it is useful for readers who need to review changes against the prior text while working with a current technical reference.
Where is IEEE 400.2-2024 used?
IEEE 400.2-2024 is commonly used by utilities, industrial facilities, and engineering teams responsible for shielded medium-voltage or similar power cable systems. It is relevant in field testing workflows that involve portable VLF test equipment, cable terminations, and accessories where insulation condition must be assessed without removing the system from service for long periods. The guide is also useful during commissioning, maintenance planning, troubleshooting, and periodic inspection of underground or otherwise difficult-to-access cable circuits.
Importance in practice
In practice, the guide helps bring consistency to cable testing decisions where results may affect safety, reliability, and outage planning. Using a recognized method can support more defensible compliance records, clearer procurement specifications for testing services, and better interpretation of test outcomes across different sites. For owners and contractors, IEEE 400.2-2024 can reduce ambiguity around VLF field testing and help limit the risk of misapplied test levels, inconsistent procedures, or unnecessary cable replacement.
- Very low frequency field testing for shielded power cables
- Insulation condition assessment in on-site workflows
- Guidance for utility and industrial cable maintenance
- Support for commissioning, inspection, and troubleshooting
- Redline format for reviewing changes in the current edition
- Publication Date: 2024
- Standard Status: Active
- Publisher: IEEE
- Subject: Engineered Materials, Dielectrics and Plasmas; Power, Energy and Industry Applications
- Official IEEE: Doi link
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