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IEEE 21

APPARATUS BUSHINGS and PROPOSED TEST CODE

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Organization: IEEE
Publication Date: 1 March 1941
Status: inactive
Page Count: 14
scope:

These standards specifically cover the followingtypes oi bushings:

(a) Outdoor bushings for large apparatus.

(b) Cover type bushings for small apparatus,

(f) Indoor bushings for all types of apparatus except dry type instrument transformers, air-blast transformers, dry type regulators, and circuit breakers rated below 5,000 volts, and non-oiltight oi! circuit breakers rated 50,000 kva or less.

These standards are not intended to apply to wall bushings, cable potheads, nor insulators for backconnected discoiniecting switches, although many of the principles may be applicable.

The bushing requirements as specified in these standards apply to bushings when mounted for testing in accordance with specified arrangements as given in the Test Code (Appendix I). Requirements when installed in apparatus shall be covered by standards for such apparatus.

Document History

November 30, 1976
GENERAL REQUIREMENTS AND TEST PROCEDURE FOR OUTDOOR APPARATUS BUSHINGS
A description is not available for this item.
June 9, 1964
Requirements and Test Code for OUTDOOR APPARATUS BUSHINGS
This Standard covers the following; (1) Electrical requirements for outdoor power apparatus bushings having basic impulse insulation levels 110 through 1300 kilovolts. (2) Mechanical rccluiremcnts...
June 9, 1964
Requirements and Test Code for OUTDOOR APPARATUS BUSHINGS
This Standard covers the following: (1) Electrical requirements for outdoor power apparatus bushings having basic impulse insulation levels 110 through 1300 kilovolts. (2) Mechanical requirements...
June 1, 1942
APPARATUS BUSHINGS AND TEST CODE FOR APPARATUS BUSHINGS
These standards specifically cover the following types of bushings: (a) Outdoor bushings for large apparatus. (b) Cover type bushings for small apparatus. (c) Indoor bushings for all types of...
IEEE 21
March 1, 1941
APPARATUS BUSHINGS and PROPOSED TEST CODE
These standards specifically cover the followingtypes oi bushings: (a) Outdoor bushings for large apparatus. (b) Cover type bushings for small apparatus, (f) Indoor bushings for all types of...

References

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