IEC 60974-11-2021 pdf download.Arc welding equipment – Part 11: Electrode holders.
This part of IEC 60974 is applicable to ELECTRODE HOLDERS for manual metal arc welding with electrodes up to 1 0 mm in diameter.
It is not applicable to ELECTRODE HOLDERS for underwater welding.
This document specifies safety and performance requirements of ELECTRODE HOLDERS .
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60050-1 51 :2001 , International Electrotechnical Vocabulary (IEV) – Part 151: Electrical and magnetic devices
IEC 60050-1 51 :2001 /AMD1 :201 3
IEC 60050-1 51 :2001 /AMD2:201 4
IEC 60050-1 51 :2001 /AMD3:201 9
IEC 60050-1 51 :2001 /AMD4:2020
IEC 60529:1 989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1 989/AMD1 :1 999
IEC 60529:1 989/AMD2:201 3
IEC 60974-1 :201 7, Arc welding equipment – Part 1: Welding power sources
IEC 60974-1 :201 7/AMD1 :201 9
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-1 51 and
IEC 60974-1 , as well as the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp
3.1 electrode holder
insulated tool for manual metal arc welding intended to clamp and guide the electrode and to ensure electrical connection to it [SOURCE: IEC 60050-851 :2008, 851 -1 4-04]
3.2 head
part of the ELECTRODE HOLDER having cavities or jaws or equivalent for insertion, orientation, clamping and electrical connection of an electrode
[SOURCE: IEC 60050-851 :2008, 851 -1 4-30]
3.3 handle
part of the ELECTRODE HOLDER designed to be held in the operator’s hand
[SOURCE: IEC 60050-851 :2008, 851 -1 4-28]
3.4 lever
part which may be fitted to control the clamping device of an ELECTRODE HOLDER [SOURCE: IEC 60050-851 :2008, 851 -1 4-31 ]
3.5 rated current
current assigned by the manufacturer that the ELECTRODE HOLDERS can accept at 60 % duty cycle without exceeding the permitted temperature rise
3.6 category A electrode holder
ELECTRODE HOLDER in which no live part is accessible to the standard test finger as described in IEC 60529
[SOURCE: IEC 60050-851 :2008, 851 -1 4-05]
3.7 category B electrode holder
ELECTRODE HOLDER in which, deviating from CATEGORY A , no live part is accessible at the HEAD to a sphere with a diameter related to the maximum diameter of the electrode (see 8.1 b) [SOURCE: IEC 60050-851 :2008, 851 -1 4-06]
4 Environmental conditions
As specified in Clause 4 of IEC 60974-1 :201 7.
5 Tests
5.1 Test conditions
All type tests shall be carried out on the same new and completely assembled ELECTRODE HOLDER .
All type tests shall be carried out at an ambient air temperature between 1 0 °C and 40 °C.
5.2 Measuring instruments
As specified in 5.2 of IEC 60974-1 :201 7.IEC 60974-11 pdf download.