IEEE 21-1941
AIEE Apparatus Bushings and Proposed Test Code
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- Language: English
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About This Item
21-1941 is a superseded technical document titled AIEE Apparatus Bushings and Proposed Test Code, focused on bushing design and test practices for power apparatus. It is relevant to power, energy, and industrial applications where insulated bushings help carry conductors through grounded barriers safely and reliably. As a historical standards reference, 21-1941 can support engineering review, legacy equipment comparison, and interpretation of older apparatus requirements.
Overview of 21-1941
This standard appears to address apparatus bushings and the proposed methods used to evaluate them, likely in the context of electrical insulation, mechanical fit, and performance under operating conditions. In practical terms, 21-1941 would have helped define how bushing characteristics were described and tested for utility and industrial power equipment. Its AIEE context suggests a focus on consistent technical practice for components used in transformers, switchgear, or similar apparatus.
Typical use cases
21-1941 may be used when reviewing legacy bushing specifications, comparing historical test approaches, or understanding older design expectations for power equipment insulation. It is particularly relevant to transformers, circuit apparatus, and other devices that depend on reliable insulated feedthroughs. Engineers, asset managers, and technical librarians may consult it when working with inherited documentation, replacement part evaluation, or modernization projects that need reference to earlier test-code practices.
Why it matters
Standards like 21-1941 matter because bushings are critical interfaces where electrical, thermal, and mechanical demands meet. Clear requirements help reduce insulation failures, support more consistent testing, and improve confidence in equipment selection and maintenance. Even as a superseded document, 21-1941 can still be useful for traceability, legacy compliance research, and understanding how design and test expectations were framed for apparatus bushings in earlier engineering practice.
- AIEE apparatus bushing focus
- Proposed test code reference
- Legacy power equipment context
- Insulation and performance review
- Superseded historical standard
- Publication Date: 1941
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
- New Version Available: 21 (1942)
- This Version: 21 (1941)
- Previous Version: 21 (1976)
- Previous Version: 21 (1964)
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