ANSI-C57.12.23 › Complete Document History
Transformers - Underground-Type Self-Cooled, Single-Phase Distribution Transformers Wi
Obsolete Revision Information: |
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1992 EDITION - REAFFIRMED IN 1999 - Jan. 1, 1992
1986 EDITION - TRANSFORMERS - UNDERGROUND-TYP - Jan. 1, 1986 |