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1、BRITISH STANDARD BS EN 50160:2000 Incorporating Corrigenda Nos. 1, 2 and 3 Voltage characteristics of electricity supplied by public distribution systems The European Standard EN 50160:1999 has the status of a British Standard ICS 29.020 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07
2、:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50160:2000 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 February 2000 BSI 4 October 2004 ISBN 0 5
3、80 35925 5 National foreword This British Standard is the official English language version of EN 50160:1999, including Corrigenda January 2004, April 2004 and September 2004. It supersedes BS EN 50160:1995 which is withdrawn. The UK participation in its preparation was entrusted by Technical Commit
4、tee GEL/210, EMC policy, to Subcommittee GEL/210/8, EMC low frequency phenomena, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European pub
5、lications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the n
6、ecessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the i
7、nterpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 19 and a back cover. The BSI
8、 copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 15022 Corrigendum No. 1 13 March 2004Correction to Subclause 2.2, Note 1 replaced 2003 by 2008 15181 Corrigendum No. 2 19 May 2004Correction to Subclaus
9、e 2.3, Note 1 replaced 2003 by 2008 15390 Corrigendum No. 3 4 October 2004Deletion of Note 1 in Subclause 2.2 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50160 November 1999 ICS 29.020
10、 Incorporating corrigenda January 2004 and September 2004 Supersedes EN 50160:1994 English version Voltage characteristics of electricity supplied by public distribution systems Caractristiques de la tension fournie par les rseaux publics de distribution Merkmale der Spannung in ffentlichen Elektriz
11、ittsversorgungsnetzen This European Standard was approved by CENELEC on 1999-01-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date list
12、s and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the re
13、sponsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, I
14、taly, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart, 35 B-
15、1050 Brussels 1999 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50160:1999 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 50160:1999 Foreword This European
16、 Standard was prepared by the CENELEC BTTF 68-6, Physical characteristics of electrical energy. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50160 on 1994-07-05. Three drafts for amendments (prAA, prAB, prAC) were submitted to the CENELEC f
17、ormal vote and were approved by CENELEC on 1999-01-01 for inclusion into a second edition of EN 50160. This European Standard replaces EN 50160:1994. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard o
18、r by endorsement (dop) 2000-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2000-05-01 Annexes designated “informative“ are given for information only. In this standard, annex A is informative. _ Licensed Copy: sheffieldun sheffieldun, na, Mon Nov
19、 06 07:07:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 50160:1999 Contents 1 General 1.1 Scope 4 1.2 Object . 5 1.3 Definitions 5 1.4 Normative references 8 2 Low-voltage supply-characteristics 2.1 Power frequency 9 2.2 Magnitude of the supply voltage 9 2.3 Supply voltage variations 10 2.
20、4 Rapid voltage changes 10 2.5 Supply voltage dips. 10 2.6 Short interruptions of the supply voltage 11 2.7 Long interruptions of the supply voltage 11 2.8 Temporary power frequency overvoltages between live conductors and earth. 11 2.9 Transient overvoltages between live conductors and earth 11 2.1
21、0 Supply voltage unbalance. 12 2.11 Harmonic voltage. 12 2.12 Interharmonic voltage . 12 2.13 Mains signalling voltage on the supply voltage 13 3 Medium-voltage supply-characteristics 3.1 Power frequency 14 3.2 Magnitude of the supply voltage 14 3.3 Supply voltage changes 14 3.4 Rapid voltage change
22、s 14 3.5 Supply voltage dips. 14 3.6 Short interruptions of the supply voltage 15 3.7 Long interruptions of the supply voltage 15 3.8 Temporary power frequency overvoltages between live conductors and earth 15 3.9 Transient overvoltages between live conductors and earth 15 3.10 Supply voltage unbala
23、nce. 16 3.11 Harmonic voltage. 16 3.12 Interharmonic voltage . 16 3.13 Mains signalling voltage on the supply voltage 17 Annex A (informative) Special nature of electricity 18 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 50160:1
24、999 1 General 1.1 Scope This standard gives the main characteristics of the voltage at the customers supply terminals in public low voltage and medium voltage electricity distribution systems under normal operating conditions. This standard gives the limits or values within which any customer can ex
25、pect the voltage characteristics to remain, and does not describe the typical situation for a customer connected to a public supply network. NOTE: For the definitions of low and medium voltage see 1.3.7 and 1.3.8. The standard does not apply under abnormal operating conditions including the followin
26、g: - conditions arising as a result of a fault or a temporary supply arrangement adopted to keep customers supplied during maintenance and construction work or to minimize the extent and duration of a loss of supply, - in case of non-compliance of a customers installation or equipment with the relev
27、ant standards or with the technical requirements for connection of loads, established either by the public authorities or the electricity supplier including the limits for the emission of conducted disturbances, - in case of non-compliance of a generation installation with the relevant standards or
28、with the technical requirements for interconnection with an electricity distribution system established either by the public authorities or the electricity supplier (e.g. embedded generation), - in exceptional situations outside the electricity suppliers control, in particular, exceptional weather c
29、onditions and other natural disasters, third party interference, acts by public authorities, industrial actions (subject to legal requirements), force majeure, power shortages resulting from external events. The voltage characteristics given in this standard are not intended to be used as electromag
30、netic compatibility (EMC) levels or user emission limits for conducted disturbances in public distribution systems. The voltage characteristics given in this standard are not intended to be used to specify requirements in equipment product standards, but should be considered. It should be especially
31、 noted that the performance of equipment might be impaired if it is subjected to supply conditions which are not taken into account in the equipment product standard. This standard may be superseded in total or in part by the terms of a contract between the individual customer and the electricity su
32、pplier. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 50160:1999 1.2 Object The object of this standard is to define and describe the characteristics of the supply voltage concerning: - frequency; - magnitude; - wave form; - symm
33、etry of the three phase voltages. These characteristics are subject to variations during the normal operation of a supply system due to changes of load, disturbances generated by certain equipment and the occurrence of faults which are mainly caused by external events. The characteristics vary in a
34、manner which is random in time, with reference to any specific supply terminal, and random in location, with reference to any given instant of time. Because of these variations, the levels of the characteristics can be expected to be exceeded on a small number of occasions. Some of the phenomena aff
35、ecting the voltage are particularly unpredictable, so that it is impossible to give definite values for the corresponding characteristics. The values given in this standard for such phenomena, e.g. voltage dips and voltage interruptions, shall be interpreted accordingly. 1.3 Definitions For the purp
36、oses of this standard, the following definitions apply. 1.3.1 customer The purchaser of electricity from a supplier. 1.3.2 supplier The party who provides electricity via a public distribution system. 1.3.3 supply terminals Point of connection of the customers installation to the public system. NOTE
37、: This point can differ from, for example, the electricity metering point or the point of common coupling. 1.3.4 supply voltage The rms value of the voltage at a given time at the supply terminals, measured over a given interval. 1.3.5 nominal voltage of a system (Un) The voltage by which a system i
38、s designated or identified and to which certain operating characteristics are referred. 1.3.6 declared supply voltage (Uc) The declared supply voltage Uc is normally the nominal voltage Un of the system. If by agreement between the supplier and the customer a voltage different from the nominal volta
39、ge is applied to the terminal, then this voltage is the declared supply voltage Uc. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 50160:1999 1.3.7 low voltage (abbreviation: lv) For the purpose of this standard a voltage, used fo
40、r the supply of electricity, whose upper limit of nominal rms value is 1 kV. 1.3.8 Medium voltage (abbreviation: mv) For the purpose of this standard a voltage, used for the supply of electricity, whose nominal rms value lies between 1 kV and 35 kV. 1.3.9 normal operating condition For a distributio
41、n system the condition of meeting load demand, system switching and clearing faults by automatic system protection in the absence of exceptional conditions due to external influences or major events. 1.3.10 conducted disturbance Electromagnetic phenomenon propagated along the line conductors of a di
42、stribution system. In some cases an electromagnetic phenomenon is propagated across transformer windings and hence between networks at different voltage levels. These disturbances may degrade the performance of a device, equipment or system or they may cause damage. 1.3.11 frequency of the supply vo
43、ltage Repetition rate of the fundamental wave of the supply voltage measured over a given interval of time. 1.3.12 voltage variation An increase or decrease of voltage normally due to variation of the total load of a distribution system or a part of it. 1.3.13 rapid voltage change A single rapid var
44、iation of the rms value of a voltage between two consecutive levels which are sustained for definite but unspecified durations. 1.3.14 voltage fluctuation A series of voltage changes or a cyclic variation of the voltage envelope (IEV 161-08-05). 1.3.15 flicker Impression of unsteadiness of visual se
45、nsation induced by a light stimulus whose luminance or spectral distribution fluctuates with time (IEV 161-08-13). NOTE: Voltage fluctuation causes changes of the luminance of lamps which can create the visual phenomenon called flicker. Above a certain threshold flicker becomes annoying. The annoyan
46、ce grows very rapidly with the amplitude of the fluctuation. At certain repetition rates even very small amplitudes can be annoying. 1.3.16 flicker severity Intensity of flicker annoyance defined by the UIE-IEC flicker measuring method and evaluated by the following quantities: - short term severity
47、 (Pst) measured over a period of ten minutes; - long term severity (Plt) calculated from a sequence of 12 Pst-values over a two hour interval, according to the following expression: 3 12 1 3 sti lt 12 = = i P P Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:09 GMT+00:00 2006, Uncontrol
48、led Copy, (c) BSI Page 7 EN 50160:1999 1.3.17 supply voltage dip A sudden reduction of the supply voltage to a value between 90 % and 1 % of the declared voltage Uc, followed by a voltage recovery after a short period of time. Conventionally the duration of a voltage dip is between 10 ms and 1 minut
49、e. The depth of a voltage dip is defined as the difference between the minimum rms voltage during the voltage dip and the declared voltage. Voltage changes which do not reduce the supply voltage to less than 90 % of the declared voltage Uc are not considered to be dips. 1.3.18 supply interruption A condition in which the voltage at the supply terminals is lower than 1 % of the declared voltage, Uc. A supply interruption can be classified as: - prearranged, when con
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