电力变压器,电源装置及类似设备的安全性.第2-12部分:恒压用恒变压器和供电机组的试验和详细要求

[中文适用范围]： IEC 61558 的这一部分涉及一般应用恒压变压器和一般应用恒压电源装置的安全性。该标准还涵盖了包含电子电路的恒压变压器。本标准适用于内部工作频率不超过500Hz的变压器和电源（线性）。该标准与开关模式电源 (SMPS) 装置的第 2-16 部分结合使用，也适用于内部工作频率高于 500 Hz 的电源。如果这两个要求发生冲突，则以最严格的要求为准。额定电源电压不超过 1 000 V ac，额定电源频率不超过 500 Hz，内部工作谐振频率不超过 30 kHz，内部工作频率不超过 100 MHz。 [外文原描述]： IEC 61558-2-12:2011 deals with the safety of constant voltage transformers for general applications and power supply units for constant voltage for general applications. Constant voltage transformers incorporating electronic circuits are also covered by this standard. This second edition cancels and replaces the first edition published in 2001. It constitutes a technical revision. The main changes consist of updating this part in accordance with IEC 61558-1:2009. This part has the status of a group safety publication in accordance with IEC Guide 104: The preparation of safety publications and the use of basic safety publications and group safety publications. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months from the date of publication. In the meantime, the previous edition can still be ordered by contacting your local IEC member National Committee or the IEC Central Office. This publication is to be read in conjunction with IEC 61558-1:2005 .