IEC 60974-7:2019 pdf free

10-10-2020 comment

IEC 60974-7:2019 specifies safety and construction requirements for torches used for arc welding and allied processes. IEC 60974-7:2019,Arc welding equipment – Part 7: Torches.
IEC 60974-7:2019 is applicable to manual, mechanically guided, air-cooled, liquid-cooled, motorized, spool-on and fume extraction torches.
The heating test in accordance with 8.3 may be carried out on a separate sample and shall be followed by the coolant leakage test in accordance with Clause 9. The other tests included in this document and not listed here may be carried out in any convenient sequence.
6.3 Routine tests
The following routine tests shall be carried out on each TORCH in the following sequence:
b) functional test as specified by the manufacturer, for example, leaks of fluid or gas, trigger operation.
The HANDLES are tightly wrapped with a metal foil. The ABLE-HOSE ASSEMBLY is placed in contact with a conductive surface throughout its entire length, for example wrapped around a metal cylinder or coiled on a flat metal surface. The metal foil and the conductive surface are electrically connected.
The maximum permissible setting of the overload release shall be 100 mA. The high-voltage transformer shall deliver the prescribed voltage up to the tripping current. Tripping is regarded as a flashover or breakdown.

Download infomation Go to download
Note: if you don't find the standards you need on this website, please come to the forum to post for help, and the webmaster will reply to you in time.

IECEX 05-2009 pdf free download

IECEX 05-2009 pdf free download.IECEx Scheme for Certification of Personnel Competencies for Explosive Atmospheres — Rules of Procedure. This publication contains the Rules of Procedure of the Scheme of the IECEx System, hereinafter referred to as the...

IEC 60034-2-2:2010 pdf free download

IEC 60034-2-2:2010, Rotating electrical machines - Part 2-2: Specific methods for determining separate losses of large machines from tests - Supplement to IEC 60034-2-1. EC 60034-2-2:2010 applies to large rotating electrical machines and establishes additional methods of...

IEC 62849:2016 free download

IEC 62849:2016 free download.Performance evaluation methods of mobile household robots. IEC 62849:2016 applies to mobile household robots and provides performance testing and evaluation methods for common features of various mobile household robots. IEC 62849:2016 will cover the...


Anonymous netizen Fill in information