IEEE 27-1930
AIEE Switchboards and Switching Equipment for Power and Light
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About This Item
27-1930 is a superseded standard for AIEE switchboards and switching equipment for power and light, addressing the technical requirements that supported early electrical distribution and control. It is relevant to equipment used in power and lighting installations where switchboard design, switching function, and operating reliability needed clear guidance. For engineers, buyers, and archivists, 27-1930 helps identify the expected construction and performance context of legacy switchboard equipment.
About 27-1930
This technical document, 27-1930, focuses on switchboards and switching equipment in the AIEE power and light context. Its purpose is typically to define how related equipment should be arranged, built, and evaluated so that electrical control and distribution functions are consistent and dependable. As a superseded standard, it is especially useful when reviewing historical designs, comparing legacy apparatus, or interpreting older procurement and specification records for power and lighting systems.
Where is 27-1930 used?
27-1930 is most relevant in installations that relied on switchboards to manage circuits, feeders, and switching operations for power and lighting service. That includes older industrial plants, utility-related facilities, commercial buildings, and other electrical systems where centralized control gear was common. The standard also has value in maintenance and restoration work on legacy equipment, where understanding the original switchboard and switching equipment requirements can support safer inspection, replacement decisions, and documentation.
Importance in practice
In practice, 27-1930 matters because it helps define a common basis for design, procurement, and technical review of switchboards and switching equipment. Clear requirements can reduce ambiguity when assessing insulation, layout, switching performance, and overall suitability for service. For teams working with older power and light apparatus, the standard can support consistency across parts, testing, and replacement planning. It also helps limit risk by anchoring expectations to a recognized historical technical reference.
- Switchboards for power and light applications
- Switching equipment design and arrangement
- Legacy electrical control and distribution systems
- Historical specification and compliance review
- Maintenance and restoration of older apparatus
- Publication Date: 1930
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
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