BS EN 61558-2-4-2009 电源电压不超过1100 V变压器,电抗器,电源和类似产品的安全性.绝缘变压器及与绝缘变压器结合的电源的详细要求和试验

标准号：BS EN 61558-2-4-2009
中文标准名称：电源电压不超过1100 V变压器,电抗器,电源和类似产品的安全性.绝缘变压器及与绝缘变压器结合的电源的详细要求和试验
英文标准名称：Safety of transformers, reactors,power supply units and similar products for supply voltages up to 1100 V. Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers
标准类型：K41
发布日期：2009/9/30 12:00:00
实施日期：2009/9/30 12:00:00
中国标准分类号：K41
国际标准分类号：29.180
引用标准：IEC 61558-1-2005
适用范围：Replacement:This part of IEC 61558 deals with the safety of isolating transformers for generalapplications and power supply units incorporating isolating transformers for generalapplications. Transformers incorporating electronic circuits are also covered by thisstandard.NOTE 1 Safety includes electrical, thermal and mechanical aspects.Unless otherwise specified, from here onward, the term transformer covers isolatingtransformers for general applications and power supply units incorporating isolatingtransformers for general applications.NOTE 2 For power supply units (linear) this part is applicable. For switch mode power supply units, IEC 61558-2-16 isapplicable together with this part.This part is applicable to stationary or portable, single-phase or polyphase, air-cooled(natural or forced) independent or associated dry- type transformers. The windings may beencapsulated or non-encapsulated.The rated supply voltage does not exceed 1 100 V a.c., and the rated supply frequencyand the internal operating frequencies do not exceed 500 Hz.The rated output does not exceed:– 25 kVA for single-phase transformers;– 40 kVA for polyphase transformers.This part is applicable to transformers without limitation of the rated output subject to anagreement between the purchaser and the manufacturer.NOTE 3 Transformers intended to supply distribution networks are not included in the scope.The no-load output voltage or the rated output voltage does exceed 50 V a.c. or 120 Vripple-free d.c., and where applicable, does not exceed 500 V a.c. or 708 V ripple-free d.c.The no-load output voltage and the rated output voltage may be up to 1 000 V a.c. or1 415 V ripple-free d.c. for special applications.This part is not applicable to external circuits and their components intended to be connectedto the input terminals and output terminals of the transformers.Transformers covered by this part are used in applications where double or reinforcedinsulation between circuits is required by the installation rules or by the end productstandard.NOTE 4 Attention is drawn to the following:- for transformers intended to be used in vehicles, on board ships, and aircraft, additional requirements (fromother applicable standards, national rules, etc.) may be necessary;- measures to protect the enclosure and the components inside the enclosure against external influences suchas fungus, vermin, termites, solar-radiation, and icing should also be considered;- the different conditions for transportation, storage, and operation of the transformers should also beconsidered;- additional requirements in accordance with other appropriate standards and national rules may be applicable totransformers intended for use in special environments.NOTE 5 Future technological development of transformers may necessitate a need to increase the upper limit ofthe frequencies, until then this part may be used as a guidance document.