標準號：BS EN 61000-2-4-2002
中文標準名稱：電磁兼容性(EMC).環境.低頻干擾的工業廠房的電磁兼容等級
英文標準名稱：Electromagnetic compatibility (EMC) - Environment - Compatibility levels in industrial plants for low-frequency conducted disturbances
標準類型：L06
發布日期：2002/9/30 12:00:00
實施日期：2002/9/30 12:00:00
中國標準分類號：L06
國際標準分類號：33.100.01
適用范圍：This part of IEC 61000 is concerned with conducted disturbances in the frequency rangefrom 0 kHz to 9 kHz. It gives numerical compatibility levels for industrial and non-publicpower distribution systems at nominal voltages up to 35 kV and a nominal frequency of50 Hz or 60 Hz.Power supply systems on ships, aircraft, offshore platforms and railways are not included.The compatibility levels specified in this standard apply at the in-plant point of coupling. At thepower input terminals of equipment receiving its supply from the above systems, the severitylevels of the disturbances can, for the most part, be taken to be the same as the levels at thein-plant point of coupling. In some situations this is not so, particularly in the case of a longfeeder dedicated to the supply of a particular load, or in the case of a disturbance generated oramplified within the installation of which the equipment forms a part.Compatibility levels are specified for electromagnetic disturbances of the types which can beexpected at any in-plant point of coupling (IPC) within industrial plants or other non-publicnetworks, for guidance ina) limits to be set for disturbance emission into industrial power supply systems (including theplanning levels defined in 3.1.5);NOTE 1 A very wide range of conditions is possible in the electromagnetic environments of industrial and othernon-public networks. These are approximated in this standard by the three classes described in Clause 4. However,it is the responsibility of the operator of such a network to take account of the particular electromagneticand economic conditions, including equipment characteristics, in setting the above-mentioned limits.b) the choice of immunity levels for the equipment within these systems.The disturbance phenomena considered are:– voltage deviations;– voltage dips and short interruptions;– voltage unbalance;– power-frequency variations;– harmonics up to order 50;– interharmonics up to the 50th harmonic;– voltage components at higher frequencies (above 50th harmonic);– d.c. component;– transient overvoltages.The compatibility levels are given for different classes of the electromagnetic environmentdetermined by the characteristics of the supply network.