ISO 22829:2007适用于从使用频率为1000 Hz的电源和等于或高于500 V的输入电压的额定值运行的电阻焊机中使用的变压器整流单元。这些变压器整流器主要用于具有集成变压器的焊枪。 对于这些变压器单元，ISO 22829:2007补充了ISO 5826和ISO 10656中规定的要求，除了通过ISO 22829:2007修订之外，这些要求仍然适用

ISO 22829:2007 is applicable to transformer-rectifier units as used in electric resistance welding machines operating from a power supply with a frequency of 1 000 Hz, and of a rated value of the input voltage equal to or higher than 500 V. These transformer-rectifier units are primarily used in welding guns with an integrated transformer. For these transformer units, ISO 22829:2007 supplements the requirements given in ISO 5826 and ISO 10656, which remain applicable except where amended by ISO 22829:2007.