NEMA-TR1 › Complete Document History
Transformers, Regulators and Reactors

Complete Current Edition:
   2013 EDITION - TRANSFORMERS, REGULATORS, & REACTORS - April 24, 2014

Obsolete Revision Information:
   1993 EDITION - REAFFIRMED IN 2000 - Jan. 1, 1993
   1980 EDITION REVISION 2 - REVISION 2 FOR 1980 EDITION - April 15, 1983
   1980 EDITION - TRANSFORMERS, REGULATORS & REA - Jan. 1, 1980