BS EN 61000-3-11-2001 电磁兼容性.极限值.公共低压供电系统电压变化、电压波动和闪烁极限值.额定电流为75A有规定连接条件的设备.pdf
《BS EN 61000-3-11-2001 电磁兼容性.极限值.公共低压供电系统电压变化、电压波动和闪烁极限值.额定电流为75A有规定连接条件的设备.pdf》由会员分享,可在线阅读,更多相关《BS EN 61000-3-11-2001 电磁兼容性.极限值.公共低压供电系统电压变化、电压波动和闪烁极限值.额定电流为75A有规定连接条件的设备.pdf(20页珍藏版)》请在三一文库上搜索。
1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 61000-3-11:2001 IEC
2、 61000-3-11:2000 Incorporating Corrigendum No.1 ICS 33.100.10; 91.140.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Electromagnetic compatibility (EMC) Part 3-11: Limits Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems E
3、quipment with rated current # 75 A and subject to conditional connection This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 January 2001 BSI 02-2001 ISBN 0
4、580 36822 X BS EN 61000-3-11:2001 Amendments issued since publication Amd. No.DateComments 13042 corrigendum February 2001 Corrects typographical errors in title and normative references clause. National foreword This British Standard is the official English language version of EN 61000-3-11:2000. I
5、t is identical with IEC 61000-3-11:2000. The UK participation in its preparation was entrusted by Technical Committee GEL/210, Electromagnetic compatability, to Subcommittee GEL/210/8, EMC - Low frequency disturbances, which has the responsibility to: aid enquirers to understand the text; present to
6、 the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be o
7、btained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identi
8、fiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international o
9、r European publications may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contr
10、act. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back
11、 cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. (8523($1?67$1$5(1? 1250(?(8523e(11( (8523b,6 emission limits for other phenomena such as harmonics, may also have to be satisfied. 3.4 service current capacity the current per ph
12、ase which can be taken continuously by the user at the interface point without exceeding the plant ratings used by the supply authority in the design of its system NOTE In practice the service current capacity is the rating of the main service fuse or overcurrent protection setting of the circuit br
13、eaker at the interface point. In cases where supply authorities declare supply capacities in volt-amperes, the current per phase may be deduced for single phase supplies by dividing the volt-amperes by the declared phase voltage, and for three-phase supplies by dividing it by ?3 times the declared l
14、ine voltage. 4 Requirements If equipment complies with the requirements of IEC 61000-3-3 and therefore is not subject to conditional connection, it may be declared so by the manufacturer in documentation made available to users before purchase. Equipment which does not meet the limits of IEC 61000-3
15、-3, when tested or evaluated with reference impedance Zref, is subject to conditional connection, and the manufacturer shall either: a) determine the maximum permissible system impedance Zmax at the interface point of the users supply in accordance with 6.2, declare Zmax in the equipment instruction
16、 manual and instruct the user to determine in consultation with the supply authority, if necessary, that the equipment is connected only to a supply of that impedance or less, or Page 6 EN 61000311:2000 w w w . b z f x w . c o m BSI 01-2001 b) test the equipment in accordance with 6.3 and declare in
17、 the equipment instruction manual that the equipment is intended for use only in premises having a service current capacity ?100 A per phase, supplied from a distribution network having a nominal voltage of 400/230 V, and instruct the user to determine in consultation with the supply authority, if n
18、ecessary, that the service current capacity at the interface point is sufficient for the equipment. The equipment shall be clearly marked as being suitable for use only in premises having a service current capacity equal to or greater than 100 A per phase. NOTE 1 In the case of option a), restrictio
19、ns to connection may be imposed by the supply authority on the use of equipment if the actual system impedance at the interface point on the users premises, Zact , exceeds Zmax. NOTE 2 In the case of option b), a new symbol (IEC 60417-5855) is under consideration for the purpose of marking equipment
20、. NOTE 3 For options a) and b), if the supply capacity and/or the actual system impedance Zact have been declared to, or measured by, the user, this information may be used to assess the suitability of equipment without reference to the supply authority. 5 Limits The limits shall be applicable to vo
21、ltage fluctuations and flicker at the supply terminals of the equipment under test, measured or calculated according to clause 4 under test conditions described in clause 6. Tests made to prove the compliance with the limits are considered to be type tests. The following limits apply: the value of t
22、he short-term flicker indicator, Pst shall not be greater than 1,0; the value of the long-term flicker indicator, Plt shall not be greater than 0,65; the value of d(t) during a voltage change shall not exceed 3,3 % for more than 500 ms; the relative steady-state voltage change, dc, shall not exceed
23、3,3 %; the maximum relative voltage change dmax, shall not exceed: a) 4 % without additional conditions; b) 6 % for equipment with: ? manual switching, or ? automatic switching more frequently than twice per day and having a delayed restart (the delay being not less than a few tens of seconds) or, ?
24、 manual restart after a power supply interruption. NOTE The cycling frequency will be further limited by the Pst and Plt limit. For example: a dmax of 6 % producing a rectangular voltage change characteristic twice per hour will give a Plt of about 0,65. c) 7 % for equipment which is attended whilst
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- BS EN 61000-3-11-2001 电磁兼容性.极限值.公共低压供电系统电压变化、电压波动和闪烁极限值.额定电流为75A有规定连接条件的设备 61000 11 2001 电磁 兼容性 极限值 公共
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