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1、BRITISH STANDARD BS EN 50160:1995 Voltage characteristics of electricity supplied by public distribution systems The European Standard EN 50160:1994 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 5
2、0160:1995 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 August 1995 BSI 12-1998 The following BSI references relate to the work on this standard: Committee ref
3、erence GEL/110/8 Draft for comment 93/213133 DC ISBN 0 580 24631 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee GEL/110, Electromagnetic compatibility, to Subcommittee GEL/110/8, Electromagnetic compatibility Low frequ
4、ency disturbances, upon which the following bodies were represented: Association of Control Manufacturers (TACMA) (BEAMA Ltd.) Association of Manufacturers of Domestic Electrical Appliances BEAMA Ltd. British Lighting Association for the Preparation of Standards (BRITLAPS) British Radio and Electron
5、ic Equipment Manufacturers Association British Telecommunications plc Building Automation and Mains Signalling Association (BAMSA) (BEAMA Ltd.) Electrical Contractors Association Electrical Installation Equipment Manufacturers Association (BEAMA Ltd.) Electricity Association ERA Technology Ltd. Fede
6、ration of the Electronics Industry GAMBICA (BEAMA Ltd.) Heating, Ventilating and Air Conditioning Association Institution of Electrical Engineers Lighting Industry Federation Ltd. Power Supply Manufacturers Association (PSMA) (BEAMA Ltd.) Professional Lighting and Sound Association Sound and Communi
7、cations Industries Federation Radiocommunications Agency Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50160:1995 BSI 12-1998i Contents Page Committees responsible Inside front
8、 cover National foreword ii Foreword 2 Text of EN 501603 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 50160:1995 ii BSI 12-1998 National foreword This British Standard has been prepared by Subcomm
9、ittee GEL/110/8 and is the English language version of EN 50160:1994 Voltage characteristics of electricity supplied by public distribution systems, published by the European Committee for Electrotechnical Standardization (CENELEC). A British Standard does not purport to include all the necessary pr
10、ovisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding British Standard EN 50065-1:1991BS EN 50065 Specificat
11、ion for signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz Part 1:1992 General requirements, frequency bands and electromagnetic disturbances EN 60555-1:1987BS 5406 Disturbances in supply systems caused by household appliances and similar electrical equipmen
12、t Part 1:1988 Glossary of Terms EN 60868:1993BS EN 60868:1993 Flickermeter. Functional and design specifications ENV 61000-2-2:1993DD ENV 61000 Electromagnetic compatibility (EMC) Part 2 Environment Section 2:1993 Compatibility levels for low-frequency conducted distrubances and signalling in public
13、 low-voltage power supply systems EN 61000-4-7:1993BS EN 61000 Electromagnetic compatibility (EMC) Part 4 Testing and measurement techniques Section 7:1993 General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto HD 472
14、S1:1988BS 7697:1993 Nominal voltages for low voltage public electricity supply systems IEC 50 (161):1990BS 4727 Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 1 Terms common to power, telecommunications and electronics Group 09:1991 Electromagneti
15、c compatibility Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 12, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated
16、 in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50160 November 1994 ICS 29.020 Descriptors: Electrical network, electrical energy distrib
17、ution, electrical supply, electrical voltage, low voltage, medium voltage, characteristics 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
18、Elektrizittsversorgungsnetzen This European Standard was approved by CENELEC on 1994-07-05. 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-d
19、ate lists 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 unde
20、r the responsibility 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 electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, L
21、uxembourg, 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-1050 Br
22、ussels 1994 Copyright reserved to CENELEC members Ref. No. EN 50160:1994 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50160:1994 BSI 12-1998 2 Foreword This European Standard has been prepared by CENELEC BTTF 68-6, Physical character
23、istics of electrical energy. The draft was submitted to the Unique Acceptance Procedure (UAP) in September 1993 and was approved by CENELEC as EN 50160 on 1994-07-05. The following dates were fixed: Contents Page Foreword2 1 General 3 1.1 Scope 3 1.2 Object 3 1.3 Definitions 3 1.4 Normative Referenc
24、es 5 2 Low-voltage Supply-Characteristics 6 2.1 Power frequency 6 2.2 Magnitude of the supply voltage 6 2.3 Supply voltage variations 6 2.4 Rapid voltage changes 6 2.5 Supply voltage dips 6 2.6 Short interruptions of the supply voltage 6 2.7 Long interruptions of the supply voltage 7 2.8 Temporary p
25、ower frequency overvoltage between live conductors and earth 7 2.9 Transient overvoltages between live conductors and earth 7 2.10 Supply voltage unbalance 7 2.11 Harmonic voltage 7 2.12 Interharmonic voltage 8 2.13 Mains signalling voltage on the supply voltage 8 3Medium-Voltage Supply-Characterist
26、ics 8 3.1 Power frequency 8 3.2 Magnitude of the supply voltage 8 3.3 Supply voltage variations 8 Page 3.4 Rapid voltage changes 9 3.5 Supply voltage dips 9 3.6 Short interruptions of the supply voltage 9 3.7 Long interruptions of the supply voltage 9 3.8 Temporary power frequency overvoltages betwe
27、en live conductors and earth 9 3.9 Transient overvoltages between live conductors and earth 9 3.10 Supply voltage unbalance 9 3.11 Harmonic voltage 10 3.12 Interharmonic voltage 10 3.13 Mains signalling voltage on the supply voltage 10 Annex A (informative) Special nature of electricity 11 Figure 1
28、Voltage levels of signal frequencies in percent of Un used in public LV distribution systems 8 Figure 2 Voltage levels of signal frequencies in percent of Uc used in public MV distribution systems 10 Table 1 Values of individual harmonic voltages at the supply-terminals for orders up to 25 given in
29、percent of Un 7 Table 2 Values of individual harmonic voltages at the supply-terminals for orders up to 25 given in percent of Uc 10 latest date of publication of an identical national standard(dop) 1995-07-15 latest date of withdrawal of conflicting national standards(dow) 1995-07-15 Licensed Copy:
30、 sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50160:1994 BSI 12-19983 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
31、 systems under normal operating conditions. NOTEFor definition of low and medium voltage see definitions 1.3.7 and 1.3.8. The standard does not apply: for operation after a fault and for a temporary supply arrangement adopted to keep customers supplied during maintenance and construction work or to
32、minimize the extent and duration of a loss of supply, in case of non-compliance of a customers installation or equipment with the relevant standards or with the technical requirements for connection of loads, including the limits for the emission of conducted disturbances, in case of non-compliance
33、of a generation installation with the relevant standards or with the technical requirements for interconnection with an electricity distribution system (e.g. embedded generation), in exceptional situations outside the suppliers control, in particular: exceptional weather conditions and other natural
34、 disasters, third party interference, acts by public authorities, industrial actions (subject to legal requirements), force majeure, power shortages resulting from external events. This standard may be superseded in total or in part by the terms of a contract between the individual customer and the
35、electricity supplier. The voltage characteristics given in this standard are not intended to be used as electromagnetic compatibility (EMC) levels or user emission limits for conducted disturbances in public distribution systems. 1.2 Object The object of this standard is to define and describe the c
36、haracteristics of the supply voltage concerning: frequency, magnitude, wave form, symmetry 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 occurrenc
37、e of faults which are mainly caused by external events. The characteristics vary in a 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 ca
38、n be expected to be exceeded on a small number of occasions. Some of the phenomena affecting 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
39、 voltage interruptions, shall be interpreted accordingly. 1.3 Definitions For the purposes 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-te
40、rminals point of connection of the customers installation to the public system NOTEThis 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
41、 interval 1.3.5 nominal voltage of a system (Un) the voltage by which a system is designated or identified and to which certain operating characteristics are referred Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:07:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 50160:1994 4 BSI 12-199
42、8 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 voltage is applied to the terminal, then this voltage is the declared supply voltage Uc 1.3
43、.7 low-voltage (abbreviation: lv) for the purpose of this standard a voltage, used for 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 v
44、alue lies between 1 kV and 35 kV 1.3.9 normal operating condition for a distribution 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 d
45、isturbance electromagnetic phenomenon propagated along the line conductors of a distribution 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 devic
46、e, equipment or system or they may cause damage 1.3.11 frequency of the supply voltage 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 dis
47、tribution system or a part of it 1.3.13 rapid voltage change a single rapid variation 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 en
48、velope (IEV 161-08-05) 1.3.15 flicker impression of unsteadiness of visual sensation induced by a light stimulus whose luminance or spectral distribution fluctuates with time (IEV 161-08-13) NOTEVoltage fluctuation causes changes of the luminance of lamps which can create the visual phenomenon calle
49、d flicker. Above a certain threshold flicker becomes annoying. The annoyance 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 (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, accordin
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