IEC 60205 Ed. 4.0 en:2016

IEC 60205:2016(E) specifies uniform rules for the calculation of the effective parameters of closed circuits of ferromagnetic material.This edition includes the following significant technical changes with respect to the previous edition:
a) addition, in 5.1, of the drawing of a core of rectangular cross-section with chamfer;
b) addition, in 5.1.3, of the equation of a core of rectangular cross-section with chamfer;
c) equations in 5.1.4, 5.6, 5.7, 5.8, 5.9, 5.11, 5.12, 5.14 are amended or replaced;
d) drawings RM6-S and RM6-R in 5.7 are amended;
e) addition of EC-cores, see 5.15.