Account:  - Login  |  Webstore  |  Shopping basket cart
English  |  Français  |  Nederlands

Publication details

Publication CODE Title
IEC 60740-1:2005 (2005-08) LAMINATIONS FOR TRANSFORMERS AND INDUCTORS - PART 1: MECHANICAL AND ELECTRICAL CHARACTERISTICS
 
Price Excl. VAT Total number of pages, tables and drawings
318.00 € 59.
Description
IEC 60740-1:2005 specifies the characteristics of laminations. Their preferred use is cores for transformers and inductors. The laminations are made of sheets and strips of magnetic materials, specified in IEC 60404-8-4 and IEC 60404-8-7. The main changes are listed below:
a) ranges with lamination strips YS, YSUI 1, YSUI 2 and laminations YEE 2-..L added;
b) range YEI 1 extended at the above end;
c) ranges YED 2, YEF 2, YEL 2, YES 2, Type YM 1-5a and YM 1-7a cancelled;
d) national designations cancelled;
e) electrical characteristics for the laminations specified;
f) mechanical characteristics for laminations added;
g) holes added for lamination types YEI 1, YUI 1, YUI 2, YM 1;
h) in Annex A, a conversion of the polarisation J and the field strength H in a specific total apparent power is defined. For the characteristics of the reactive power and the power loss, equations and constants are specified.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
Situation Currently active
Replaces  IEC 60740:1982
Replaces  IEC 60740:1982/AMD1:1991
Origin
Committee TC 51
MAGNETIC COMPONENTS AND FERRITE MATERIALS
Approval
BEC Approval 2005-08-09
ICS-Code (International Standards Classification) 29.100.10
IEC publication date 2005-08-09
IEC stability date 2025-12-31
IEC last modification date 2018-07-19