1、 ETSI EN 300 132-3 V1.2.1 (2003-08)European Standard (Telecommunications series) Environmental Engineering (EE);Power supply interface at the input totelecommunications equipment;Part 3: Operated by rectified current source,alternating current source ordirect current source up to 400 VETSI ETSI EN 3
2、00 132-3 V1.2.1 (2003-08) 2 Reference DEN/EE-02001-3 Keywords environment, interface, power supply ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-
3、Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between suc
4、h versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subjec
5、t to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: editoretsi.org Copyright Notification No part may be reproduced except as
6、 authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2003. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTMand
7、 the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 3 Contents Intellectual Property Rights4 Forew
8、ord.4 1 Scope 5 2 References 5 3 Definitions and abbreviations.6 3.1 Definitions6 3.2 Abbreviations .6 4 Interface A37 5 Requirements7 5.1 Nominal voltage .7 5.2 Normal service voltages at interface A3.8 5.3 Nominal frequencies.8 5.4 Abnormal service voltage ranges at interface A3.8 5.4.1 Abnormal s
9、ervice voltage under steady-state conditions8 5.4.2 Voltage dips, short interruptions and transients8 5.5 Supply protection .9 5.6 Maximum current drain9 5.7 Surge current on connection to interface A3 9 5.7.1 Limits9 5.7.2 Measurements .10 6 Earthing and bonding .11 7 Electrical safety requirements
10、 11 8 EMC requirements .11 Annex A (informative): Power supply considerations.12 A.1 Possible power supply configurations12 A.2 Supply voltage waveforms .13 Annex B (informative): Identification of interface A3 14 Annex C (informative): Calculation of the extreme voltage nominal values at interface
11、A3 15 Annex D (informative): Calculation of the extreme voltage nominal values at interface A3 in the case of using other nominal voltage .16 Annex E (informative): Bibliography.17 History 18 ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 4 Intellectual Property Rights IPRs essential or potentially essenti
12、al to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified
13、 to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be
14、 given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Environ
15、mental Engineering (EE). The present document concerns the requirements for the interface between telecommunications equipment and its power supply and includes requirements relating to its stability and measurement. Various other references and detailed measurement and test arrangements are contain
16、ed in informative annexes. The present document is part 3 of a multi-part deliverable covering Environmental Engineering (EE); Power supply interface at the input to telecommunications equipment, as identified below: Part 1: “Operated by alternating current (ac) derived from direct current (dc) sour
17、ces“; Part 2: “Operated by direct current (dc)“; Part 3: “Operated by rectified current source, alternating current source or direct current source up to 400 V“. National transposition dates Date of adoption of this EN: 25 July 2003 Date of latest announcement of this EN (doa): 31 October 2003 Date
18、of latest publication of new National Standard or endorsement of this EN (dop/e): 30 April 2004 Date of withdrawal of any conflicting National Standard (dow): 30 April 2004 ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 5 1 Scope The present document contains requirements for: the output performance of the
19、 power equipment at the interface A3; the input of the telecommunications equipment connected to interface A3. The voltage at interface A3 may be the ac mains, a rectified voltage derived from ac three phase mains, a rectified voltage derived from ac single phase mains or a low voltage derived from
20、a battery. The power supply equipment may incorporate a backup battery. The present document aims at providing compatibility between the power supply equipment and both the telecommunications equipment, and the different load units connected to the same interface A3 (e.g. datacom equipment). The req
21、uirements at interface A3 apply to: the output of the power supply equipment or power supply installation of telecommunications centres; the power supply input of telecommunications equipment and the datacom equipment installed at telecommunications centres; telecommunications equipment and the data
22、com equipment, installed in customers premises, whose power interface A3 is also used by equipment requiring a supply to the present document. The purpose of the present document is: to identify a power supply system with the same characteristics for all telecommunications and data communication equ
23、ipment defined in the area of application; to facilitate interworking of different (types of) loads units; to facilitate the standardization of power supply systems for telecommunications and datacom equipment; to facilitate the installation, operation and maintenance in the same network of equipmen
24、t and telecommunications and datacom systems from different origins. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication and/or edition number o
25、r version number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 IE
26、C 60364-4-44: “Electrical installations of buildings - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances“. 2 IEC 60364-5-54: “Electrical installations of buildings - Part 5-54: Selection and erection of electrical equipment - Earthing arrange
27、ments, protective conductors and protective bonding conductors“. 3 CENELEC HD 472 S1: “Nominal voltage for low-voltage public electricity supply systems“. ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 6 4 CISPR 16-1: “Specification for radio disturbance and immunity measuring apparatus and methods Part 1:
28、 Radio disturbance and immunity measuring apparatus“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: abnormal voltage range: range of steady-state voltages over which the equipment will not be expected to maintain
29、normal service but will survive undamaged customer premises: any location which is the sole responsibility of the customer datacom equipment: information technology equipment interface A3: interface, physical point, at which power supply is connected to the telecommunications and datacom equipment l
30、oad unit: power consuming equipment, that is part of a system block nominal load conditions: set of values dedicated to a test performance nominal voltage value: nominal value of the voltage that designates the type of supply normal service: service mode where telecommunications equipment operates w
31、ithin its specification normal service voltage range: range of the steady-state voltage over which the equipment will maintain normal service power supply: power supply to which telecommunications equipment is intended to be connected system block: functional group of equipment depending for its ope
32、ration and performance on its connection to the same power supply telecommunication centre: any location where telecommunications equipment is installed and is the sole responsibility of the operator 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ac al
33、ternating current (also when used as a suffix to units of measurement) AMN Artificial Mains Network dc direct current (also when used as a suffix to units of measurement) EUT Equipment Under Test EMC Electric Magnetic Compatibility Im maximum current It Instantaneous surge current LISN Line Impedanc
34、e Stabilization Network PE Protective Earth R Resistance of resistive element of LISN rms root mean square (also when used as a suffix to units of measurement) UPS Uninterrupted Power Supply ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 7 4 Interface A3 The power supply interface, interface A3 of figure 1
35、, is a physical point to which all the requirements are related. This point is situated between the power supply system(s) and the power consuming telecommunications equipment. NOTE 1: Interface A3 is located at the power terminals of the telecommunications equipment. Subject to the installation pre
36、conditions, this point may be located at any other point between the power supply system and the telecommunications equipment by mutual agreement of the relevant parties. NOTE 2: In the case where the same type of equipment is used for mains 230 V ac and dc for the following document, normal fuses (
37、e.g. 5x20) may be unsuitable for dc ( 200 V). If the appropriate fusing is located outside of the equipment the internal fuse should be bridged. It is intended to use a different plug or appliance inlet to the equipment for power supply to the following document that is safe for disconnecting under
38、load conditions. In addition the equipment shall be labelled. telecommunication s and datacom equipment Power supply L(-) N(+) PE system block L (-) = phase or negative pole. N (+) = ac neutral or dc return conductor (see clause 6). PE = Protective earth. Figure 1: General identification of the inte
39、rface A3 5 Requirements The requirement of the alternating voltage for the public mains is defined in HD 472 S1 3. 5.1 Nominal voltage The telecommunication equipment connected to interface A3 shall be designed to operate with the following nominal voltage: 230 Vrms. See clause A.1 for discussion on
40、 possible power supply. ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 8 5.2 Normal service voltages at interface A3 The normal service voltage range is as follows: maximum peak voltage: 375 V; minimum rms voltage: 188 V. NOTE: The normal service range covers both cases of power supply derived from a singl
41、e phase ac or three phase ac. 5.3 Nominal frequencies The nominal frequency for interface A3 is defined as follows: if directly ac powered the frequency is 50 Hz; if a ripple is superimposed to the dc voltage, the frequency of the ripple is 300 Hz (rectified three phase) or 100 Hz (rectified single
42、phase). 5.4 Abnormal service voltage ranges at interface A3 5.4.1 Abnormal service voltage under steady-state conditions The telecommunications equipment shall be subjected to following fluctuations: 0 V 1,66 times Im at nominal voltage. NOTE 2: Im is a peak value measured during steady state in nor
43、mal operating mode (ac mains). The inrush current shall be measured when powered by the nominal rms ac voltage of the mains. ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 10Figure 2: Maximum inrush current ratio characteristics for equipment at nominal voltage and maximum load 5.7.2 Measurements The circu
44、it for measuring the surge current drawn by the equipment shall be as shown in figure 3. The test circuit is designed to operate with a single switch as shown. R L LISN Telecommunications equipment EUT Power Source Recording device Interface “A“ R = 6 V/(Im(Vnom). L = 50 H (the LISN (AMN) is specifi
45、ed in CISPR 16-1 4, clause 11.3). NOTE 1: Resistance R includes the resistance of inductor L. NOTE 2: The intention of the additional resistance is to simulate a power network over which a voltage drop of 6 V will appear in case of nominal current. NOTE 3: While carrying out the surge current test,
46、the voltage of the power supply at the input of the LISN, as shown in figure 3, shall fall by no more than 12 V due to current limitation or internal impedance of the power source. Figure 3: Inrush current test circuit The test shall be made with different phase angles between the switching time and
47、 the rectified voltage. The values taken into account shall be the worst case (largest values) measured. ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 116 Earthing and bonding The earthing and bonding of the telecommunications and datacom equipment in telecommunications centres is covered by IEC 60364-4-4
48、4 1 and IEC 60364-5-54 2. The battery may be connected to earth at battery level or may be operated floating. Additional protection may be necessary for floating operation. The neutral N shall be connected to earth at the source of the power system, as in TN-S or TT distribution systems. 7 Electrica
49、l safety requirements The present document does not cover safety requirements, they are covered by the relevant safety standards. 8 EMC requirements The present document does not cover EMC requirements, they are covered by the relevant EMC standards. ETSI ETSI EN 300 132-3 V1.2.1 (2003-08) 12Annex A (informative): Power supply considerations A.1 Possible power supply configurations The increase of service and the new packet switching network has led to more equipment in the same existing telecommunication centres. Th
