IEC-870-2-1 Complete Document History
Telecontrol equipment and systems - Part 2: Operating conditions - Section 1: Power supply and electromagnetic compatibility

Complete Current Edition:
   2ND EDITION - PART 2: OPERATING CONDITIONS - - Dec. 1, 1995

Obsolete Revision Information:
   1ST EDITION - PART 2: OPERATING CONDITIONS - - Jan. 1, 1987