MT 28 - TC 27/MT 28

IEC 60779:2020 specifies the test procedures, conditions and methods for determining the main performance parameters and operational characteristics of electroslag remelting furnaces.
Measurements and tests that are solely used for the verification of safety requirements of the installations are outside the scope of this document and are covered by IEC 60519-1 and IEC 60519-8.
This third edition cancels and replaces the second edition published in 2005. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- the structure has been redrafted according to IEC 60398:2015;
- the scope and object have been redrafted;
- the terms/definitions, normative references and bibliography have been updated and completed;
- all test methods and content from IEC 60779:2005 that have been included in IEC 60398:2015 have been removed to avoid any duplication.

IEC 60519-8:2020 specifies particular safety requirements for electroslag remelting equipment and installations.
This document specifies safety requirements applicable to mainly electroheating installations for remelting and, in some cases, for refining processes of metals through direct resistance heating of a conductive slag.
The object of this document is to specify the particular requirements for the safety of persons in or around an electroslag remelting furnace. The general requirements are included in IEC 60519-1.
This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the structure has been redrafted according to IEC 60519-1:2020;
b) the Scope has been redrafted;
c) the terms and definitions, normative references and bibliography have been updated and completed;
d) all requirements and content from IEC 60519-8:2005 that have been included in IEC 60519‑1:2020 have been removed to avoid any duplication.

Applicable to industrial electroslag remelting furnaces having one or more electrodes and having different melting power supplies, such as alternating current, direct current, or low-frequency current. Standardizes electroslag remelting furnace test conditions and methods to determine the main parameters and technical characteristics. The contents of the corrigendum of December 2008 have been included in this copy.