ETSI ETS 300 132-1-1996 Equipment Engineering (EE) Power Supply Interface at the Input to Telecommunications Equipment Part 1 Operated by Alternating Current (ac) Derived from Dire.pdf

1、3400855 0332244 310 ETSI ETS 300 132-1 September 1996 Source: ETSI TC-EE Reference: DE/EE-02001.1 ICs: 33.020 Key words: Power supply Equipment Engineering (EE); Power supply interface at the input to telecommunications equipment; Part 1: Operated by alternating current (ac) derived from direct curr

2、ent (dc) sources ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: efr, a=atlas, p=etsi, s=secretariat - Internet: secretariat Qetsi.fr Tel

3、.: +33 92 94 42 O0 - Fax: +33 93 65 47 16 Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. Q European Telecommunications Standards Institute 1996. All rights reserved. Pane 2

4、 ETSI ETS*300*332- I 96 3400855 0332245 257 ET5 300 132-1 : September 1996 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to “ETSI Editing and C

5、ommittee Support Dept.“ at the address shown on the title page. Page 3 ETS 300 132-1 : September 1996 ETSI ETS*300*132- I 7b 3400855 0132246 193 Contents Foreword . 5 1 Scope . 7 2 Normative references 8 3 Definitions and abbreviations 9 3.1 Definitions 9 3.2 Abbreviations . 9 4 Requirements 10 Nomi

6、nal value of the supply voltage 10 Normal service voltage range at interface “A . 10 Abnormal service voltage ranges at interface “A 10 4.3.1 Abnormal service voltage under steady-state conditions 10 4.3.2 Recovery from steady state abnormal voltage li Abnormal service voltage under temporary condit

7、ions 11 Voltage changes due to the regulation of secondary voltage li Supply protection at interface “A“ . 11 Surge current on connection of interface “A“ . 1 1 4.7.1 Limits . 1 1 4.7.2 Measurement method . 12 4.7.3 Protective device ratings . 13 4.1 4.2 4.3 4.4 4.5 4.6 4.7 5 Earthing and bonding 13

8、 6 Electrical safety requirements . 13 6.1 General 13 7 EMC requirements 13 Annex A (informative): Information and guide on safety . 14 Annex B (informative): Guide for measuring inrush current and for transferring the recorded pulses onto the limit chart 15 B.l Measurement 15 8.2 Pulse waveform tra

9、nsformation . 15 Annex C (informative): Identification of interface A . 17 Annex D (informative): Bibliography 18 History 19 ETSI ETS*300*132- 1 96 3400855 0132247 02T m Page 4 ETS 300 132-1 : September 1996 Blank page ETSI ETS*30*132- I 96 3400855 0332248 Tbb Page 5 ETS 300 132-1 : September 1996 F

10、oreword This European Telecommunication Standard (ETS) has been produced by the Equipment Engineering (EE) Technical Committee of the European Telecommunications Standards Institute (ETSI). This ETS details the requirements for the interface between telecommunications equipment and its power supply,

11、 and includes requirements relating to its stability and measurement. Normative references are also made to the safety aspects, in various IEC and CENELEC documents. Informative references and detailed measurement and test arrangements are contained in informative annexes. This ETS consists of 2 par

12、ts as follows: Part 1: “Operated by alternating current (ac) derived from direct current (dc) sources“ Part 2: “Operated by direct current (dc)“ Transposition dates Date of adoption of this ETS: Date of latest announcement of this ETS (doa): 16 August 1996 31 December 1996 Date of latest publication

13、 of new National Standard or endorsement of this ETS (dop/e): 30 June 1997 Date of withdrawal of any conflicting National Standard (dow): 30 June 1997 Page 6 ETSI ETS*300*332- I 9b 3400855 0332249 T2 ETS 300 132-1 : September 1996 Blank page ETSI ETS*300*L32- 1 76 H 3400855 0332250 bL4 W Page 7 ETS

14、300 132-1: September 1996 1 Scope This European Telecommunication Standard (ETS) contains requirements for: - the output performance of the (stabilized) ac power supply derived from dc sources as specified in ETS 300 132-2 9; and - the input of the telecommunications equipment connected to interface

15、“A“, powered by ac not directly provided by the mains. This ETS also makes reference to safety and EMC standards which are in accordance with the relevant European and international standards. This ETS aims at providing compatibility between the power supply equipment and the power consuming telecom

16、munications equipment, and also between different load units connected to the same power supply. NOTE 1 : To ensure satisfactory performance, the connection of telecommunications equipment into installations is subject to the prevailing conditions of that installation and is subject to the agreement

17、 of both parties. NOTE 2: For dc power supply systems operated at a nominal voltage of -48 V, ETS 300 132-2 is available. The power supply interface, interface “A of figure 1, is a physical point to which all the requirements are related. This point is situated between the power supply system) and t

18、he power consuming telecommunications equipment. NOTE 3: Interface “A is located at the power terminals of the telecommunications equipment. Subject to the installation preconditions, this point may be located at any other point between the power supply system and the telecommunications equipment by

19、 mutual agreement of both parties. The requirements at interface “A“ apply to: - the output of the power supply equipment or power supply installation of telecommunications centres; - the power supply input of telecommunications equipment installed at telecommunication centres; - telecommunications

20、equipment, installed in customers premises, whose power interface “A“ is also used by equipment requiring a supply to this specification. NOTE 4: Normally there is more than one load unit connected to interface “A. In some of these cases interface “A“ might undergo further restrictions with respect

21、to noise limits or other disturbances. NOTE 5: This ETS also gives requirements on disturbances on the power supply interface “A. However, continuous wave phenomena above 20 kHz are not covered within this ETS. ETS 300 386-1 8 is applicable for this frequency range. NOTE 6: The transients to which i

22、mmunity is specified in this ETS are characterized by a high energy content such that electrical stress may be caused. Fast transients, the effects of which appear mainly as interference, are covered by ETS 300 386-1 8. NOTE 7: An example of a configuration in which the interface“A is identified is

23、given in annex C. - ETSI ETS*300*132- I 9b m 3400855 OL3225L 550 Page 8 ETS 300 132-1: September 1996 ! i ! I telecommunications . . . “ . . ac power supply conductors ! I system block i i i i interface A Figure 1 : General identification of the power interface, interface “A“ The purpose of this ETS

24、 is: - to enable the use of a power supply system with the same characteristics telecommunications equipment defined in the area of application; for all - to facilitate interworking of different (types of) load units; - to facilitate the standardization of telecommunications equipment; - to facilita

25、te the installation, operation and maintenance in the same network of equipment and telecornmunications systems from different origins. 2 Normative references This ETS incorporates by dated and undated reference provisions from other publications. These normative references are cited at the appropri

26、ate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to

27、 applies. 31 ETS 300 253: “Equipment Engineering (EE); Earthing and bonding of telecommunication equipment in telecommunication centres“. EN 41003 (1 991): “Particular safety requirements for equipment to be connected to telecommunication networks“. EN 60950 (1 992 amended 1993): “Safey of informati

28、on technology equipment, including electrical business equipment“. i41 IEC 38 (1983): “IEC standard voltages“ IEC 364-4-41 (1982): “Electrical installations of buildings - Part 4: Protection for safety - Chapter 41 : Protection against electric shock. ETSI ETS*300*132- I 96 R 3400855 0132252 497 II

29、Page9 ETS 300 132-1 : September 1996 IEC 664 (1 992): “Insulation co-ordination for equipment within low voltage systems“. IEC 686 (1 980): “Stabilized power supplies, ac output“. ETS 300 386-1 (1 994): “Equipment Engineering (EE); Public telecommunication network equipment; Electro-Magnetic Compati

30、bility (EMC) requirements; Part 1 : Product family overview, compliance criteria and test levels“. ETS 300 132-2 (1 996): “Equipment Engineering (EE); Power supply interface at the input to telecommunications equipment; Part 2: Operated by direct current (dc)“. IEC Publication 364-5-54: “Electrical

31、installations of buildings - Part 5: Selection and erection of electrical equipment - Chapter 54: Earthing arrangements and protective conductors“. Definitions and abbreviations Definitions For the purposes of this ETS, the following definitions apply: abnormal voltage range: The range of steady-sta

32、te voltages over which the equipment will not be expected to maintain normal service but will survive undamaged. interface “A: The terminals at which the ac power supply is connected to the telecommunications equipment (see figure 1). NOTE 1: This is a functional definition and not an exact depictio

33、n of the physical location. nominal load conditions: A set of values dedicated to a test performance. nominal voltage value: The nominal value of the voltage that designates the type of supply. normal service voltage range: The range of the steady-state voltage over which the equipment will maintain

34、 normal service. normal service: The service mode where telecommunications equipment operates within its specification. power supply: A power source to which telecommunications equipment is intended to be connected. system block: A functional group of equipment depending for its operation and perfor

35、mance on its connection to the same power supply. telecommunication centre: Any location where telecommunications equipment is installed and which is the sole responsibility of the operator. 3.2 Abbreviations For the purposes of this ETC, the following abbreviations apply: ac dc EUT Equipment Under

36、Test GEN Generator 1, It L alternating current (also when used as a suffix to units of measurement) direct current (also when used as a suffix to units of measurement) maximum current (see subclause 4.7.1) instantaneous surge current (see subclause 4.7.1) Line (of ac power supply) - figure 1 ETSI ET

37、S*300*132- L 96 M 3400855 0132253 323 w Page 10 ETS 300 132-1: September 1996 L LISN N PE Protective Earth R rms t time inductance of inductive element of LISN - other than figure 1, and especially subclause 4.7.2 Line Impedance Stabilization Network Neutral (of ac power supply) resistance of resist

38、ive element of LISN root mean square (also when used as a suffix to units of measurement) 4 Requirements A prerequisite is that the ac power supply providing power to interface “A shall be of the stabilized type such as an inverter or an ac conditioner. 4.1 Nominal value of the supply voltage The no

39、minal value of the voltage at interface “A“ shall be 230 Vac. 4.2 Normal service voltage range at interface “A“ The normal service voltage range for an ac nominal supply at interface “A“ is: - 207,O to 253,O Vat, This value has to be observed between: - the supply conductors of single-phase systems;

40、 - the phase and neutral supply conductors of (“400 VI) three-phase systems. NOTE 1: For the mains nominal supply voltage this ETS complies with IEC Publication 38 4. NOTE 2: During a transitional period, IEC Publication 38 4 reduces the upper tolerance limit of 10% to 6%, .e. to 242,O V. In additio

41、n, some users require the lower limit to be 198,O V. The standard frequency range for the normal service voltage range shall be 48 to 52 Hz. NOTE 3: Certain peripheral equipments require a closer tolerance, typically f 1 Hz or less. For this equipment a stabilized ac supply may be specified in accor

42、dance with IEC Publication 686 7. NOTE 4: Single-phase equipment may also be powered by multi-phase supplies, deviating from IEC Publication 38 4, as long as the voltage between the active supply conductors are in accordance with this ETS. 4.3 Abnormal service voltage ranges at interface “A“ 4.3.1 A

43、bnormal service voltage under steady-state conditions Telecommunications equipment operated by ac shall not suffer any damage when subjected to the following voltages ranges (rms values): O to 207,O Vac. ETSI ETS*300*132- L 96 3400855 0332254 2bT Page 11 ETS 300 132-1 : September 1996 The frequency

44、tolerance for 230/400 V,J50 Hz systems at abnormal service under steady state conditions shall be: 45 Hz to 55 Hz. NOTE: Overvoltages are covered in EN 60950 3 with respect to safety. 4.3.2 Recovery from steady state abnormal voltage Following the restoration of the supply to the normal service volt

45、age range, the power transformation and management systems of the power equipment connected to interface “A shall automatically restore service. The telecommunications equipment shall then resume operation according to its specifications. The abnormal service voltage shall not lead to the disconnect

46、ion of power supply units e.g. by causing circuit breakers, fuses or other such devices to operate. 4.4 Abnormal service voltage under temporary conditions Abnormal service voltage under temporary conditions and surge testing simulating these temporary conditions are covered by ETS 300 386-1 8. 4.5

47、Voltage changes due to the regulation of secondary voltage Voltage interruptions of the ac power supply: where automatic switching is used to maintain continuity, short interruptions and fluctuations of the voltage measured at interface“A may occur. The telecommunications equipment shall continue to

48、 function correctly when the duration of the interruption is less than or equal to 20 ms at nominal supply voltage. Slow voltage fluctuations: in the case of regulation of the secondary voltage following load changes, slow voltage fluctuation and frequency variations may occur. The telecommunication

49、s equipment shall continue to function correctly in accordance with its specification within the envelope of the voltage fluctuations shown below: - static tolerance: - - for c 2 ms with respect to actual value: for c 500 ms with respect to the rms value: k 10% f 15% f 40% and within frequency variations of up to I 3 Hz with a recovery time of 5 seconds or less. 4.6 Supply protection at interface “A“ The supply to interface “A“ shall be protected by fuses or circuit breakers placed, for example, in a power distribution bay. Putting equipment into service shall not re