IEC 60204-31:2013适用于专门为缝纫行业专业用途设计的电气和电子设备、缝纫机、单元和系统。它适用于交流电标称电源电压不超过1 000 V、直流电标称电源电压不超过1 500 V、标称频率不超过200 Hz的电气设备或电气设备部件。第四版取消并取代了2001年出版的第三版，构成了技术修订。它包括以下变化: -规范性参考文献的对齐； -标题和副标题与IEC 60204-1的对齐； -修订附件AA，使本附件与相关的IEC标准保持一致。 本出版物应与IEC 60204-1:20 09一起阅读。

IEC 60204-31:2013 applies to electrical and electronic equipment, sewing machines, units and systems, designed specifically for professional use in the sewing industry. It is applicable to the electrical equipment or parts of the electrical equipment which operate with nominal supply voltages not exceeding 1 000 V for alternating current and not exceeding 1 500 V for direct current, and with nominal frequencies not exceeding 200 Hz. This fourth edition cancels and replaces the third edition, published in 2001 and constitutes a technical revision. It includes the following changes:
- Alignment of the normative references;
- Alignment of titles and subtitles to the IEC 60204-1;
- Revision of Annex AA to align this annex with the relevant IEC standards.

This publication is to be read in conjunction with IEC 60204-1:2009.