EN-61660-1 Complete Document History
Part 1: Calculation of Short-Circuit Currents, Short-Circuit Currents - Short-Circuit

Complete Current Edition:
   2010 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - Jan. 1, 2010

Obsolete Revision Information:
   1997 EDITION - ONLY AVAILABLE IN NATIONAL EDITIONS - Jan. 1, 1997