标准摘要
[中文适用范围]： 本部分IEC 61340规定了用于评估和选用电离器（空气离子化设备及系统）的测试方法和程序。该文件确立了在特定条件下测量电离器偏移电压（离子平衡）及衰变（电荷中和）时间的方法。本文件不包含电磁干扰（EMI）的测量，也不涉及电离器在弹药、易燃物、爆炸物品或电引爆装置等应用中的使用。根据本文件，电离器制造商可利用其中的测试方法和测试条件提供描述其产品性能的数据。电离器用户应针对其具体应用对测试方法和测试条件进行适当调整，以验证电离器是否适用，或定期验证其性能。用户应根据具体应用决定所需数据的范围。有关电离器性能标准测试方法的理论背景及补充信息，请参阅附录A。注意：本文件所述 procedures 及设备可能使人员暴露于危险电气及非电气环境中。本文件使用者有责任选择符合现行法律法规、监管规范以及内外部政策要求的设备。需特别强调的是，本文件不能替代或凌驾于任何关于人员安全的强制性要求。有关安全事项的详细信息，请参阅附录C。 [外文原描述]： IEC 61340-4-7:2025 provides test methods and procedures for evaluating and selecting air ionization equipment and systems (ionizers). This document establishes measurement techniques, under specified conditions, to determine offset voltage (ion balance) and decay (charge neutralization) time for ionizers. This document does not include measurements of electromagnetic interference (EMI), or the use of ionizers in connection with ordnance, flammables, explosive items or electrically initiated explosive devices. As contained in this document, the test methods and test conditions can be used by manufacturers of ionizers to provide performance data describing their products. Users of ionizers are urged to modify the test methods and test conditions for their specific application in order to qualify ionizers for use, or to make periodic verifications of ionizer performance. The user will decide the extent of the data required for each application. This edition includes the following significant technical changes with respect to the previous edition: a) in Figure 5, a NOTE 3 was added to clarify that for AC bars and grids, a single emitter alternating between +/− polarity is used; b) in Annex B, the relative error for measurement equipment was updated to include the consideration for the resolution of the voltmeter.
英文名称Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization