1、 ETSI TR 101 651 V2.1.1 (2016-01) Classification of the electromagnetic environment conditions for equipment in telecommunication networks TECHNICAL REPORT ETSI ETSI TR 101 651 V2.1.1 (2016-01) 2 Reference RTR/ERM-EMC-324 Keywords EMC, management, network, power supply, switching, testing, transmiss
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7、n of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Tr
8、ade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 101 651 V2.1.1 (2016-01) 3 Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminolog
9、y 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 Application area . 8g35 Characteristics of environments . 8g35.1 Telecommunication and Data centres. 8g35.1.0 General 8g35.1.1
10、Class 1 - major telecommunication and data centres 8g35.1.2 Class 2 - minor telecommunication and data centres 9g35.2 Class 3 - outdoor locations . 9g35.3 Class 4 - customers premises . 9g36 Attributes of customers premises. 10g37 Notation to tables 2 to 7 . 10g38 Characteristic severities of enviro
11、nmental parameters . 11g3History 17g3ETSI ETSI TR 101 651 V2.1.1 (2016-01) 4 Intellectual Property Rights IPRs essential or potentially essential 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
12、 and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.or
13、g). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be 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 pre
14、sent document. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document should be used by the standardization committees to define the ElectroMagnetic Compatibility (EMC) requirements for th
15、e telecommunication equipment, depending by the locations where these are intended to be installed. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2
16、 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TR 101 651 V2.1.1 (2016-01) 5 1 Scope The present document provides information on the electromagnetic environmental
17、conditions encountered where telecommunications equipment is installed and is a compilation of data concerning electromagnetic environmental conditions. In the present document only locations for equipment that are in the telecommunication network are considered. Only some of the data is based on co
18、mprehensive environmental surveys. Such surveys are rarely reported in available literature. Consequently, estimated values are often used when the electromagnetic environmental conditions are stated. In order to characterize the electromagnetic environment, it is necessary to make certain assumptio
19、ns on the installation practice. If these assumptions are not satisfied in a particular case, the environmental characteristic may not apply. Each environment is characterized in two ways: by a short verbal description of its assumed attributes; by a quantitative statement of the characteristic seve
20、rities of the crucial environmental phenomena. It is only possible to specify the appropriate EMC requirements following the assessment of the severity of the electromagnetic environment. This in turn will be helpful in ensuring that the telecommunications network equipment has the sufficient intrin
21、sic immunity to enable it to operate as intended in its environment. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-spec
22、ific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were vali
23、d at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 Informative references References are either specific (identified by date of publication and/or edition numb
24、er or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI
25、 cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 ETSI ETS 300 132-1 (1996): “Equipment Engineering (EE); Power supply interface at the in
26、put to telecommunications equipment; Part 1: Operated by alternating current (ac) derived from direct current (dc) sources“. i.2 ETSI EN 300 132-2 (V2.4.6) (12-2011): “Environmental Engineering (EE); Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 2: Opera
27、ted by -48 V direct current (dc)“. ETSI ETSI TR 101 651 V2.1.1 (2016-01) 6 i.3 IEC 60364-1 ed. 5.0 (11-2005): “Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics, definitions“. i.4 ETSI EN 300 253 (V2.1.1) (04-2002): “Environmental Engineerin
28、g (EE); Earthing and bonding of telecommunication equipment in telecommunication centres“. i.5 Recommendation ITU-T K.27 (05-1996): “Bonding configurations and earthing inside a telecommunication building“. i.6 IEC/TR 61000-2-5 ed. 2.0 (05-2011): “Electromagnetic compatibility (EMC) - Part 2-5: Envi
29、ronment - Description and classification of electromagnetic environments“. i.7 IEC Publication No. 60050 (161): “International Electrotechnical Vocabulary; Chapter 161: Electromagnetic compatibility“. i.8 ETSI EN 300 132-3-1 (02-2012): “Environmental Engineering (EE); Power supply interface at the i
30、nput to telecommunications and datacom (ICT) equipment; Part 3: Operated by rectified current source, alternating current source or direct current source up to 400 V; Sub-part 1: Direct current source up to 400 V“. i.9 ETSI EN 301 605 (10-2013): “Environmental Engineering (EE); Earthing and bonding
31、of 400 VDC data and telecom (ICT) equipment“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: NOTE: The definitions taken from the IEC Publication No. 60050 (161) i.7 have reference in parentheses. Audio (low) Frequ
32、ency (AF): frequency interval from 0 Hz to 20 kHz NOTE: It may sometimes be convenient to extend the use of this term to include the range of frequencies up to 150 kHz. continuous disturbance (161-02-11): electromagnetic disturbance the effects of which on a particular device or equipment cannot be
33、resolved into a succession of distinct effects duration (of a pulse): interval of time between the instants at which the instantaneous value of a pulse reaches 50 % of the pulse magnitude for the first and last time duration (of a voltage change) (161-08-03): interval of time for the voltage to incr
34、ease or decrease from the initial value to the final value environment, environmental conditions: electromagnetic conditions external to the equipment, to which it is subjected at a certain time NOTE: The environmental conditions comprise a combination of single environmental parameters and their se
35、verities. environmental class: representation of the environment on locations with similar properties NOTE 1: They are specified and standardized to provide an operational frame of reference for: square4 requirements on the environment; square4 immunity requirements. NOTE 2: The class is described u
36、sing an envelope of environmental conditions expressed in terms of a number of environmental parameters and their characteristic severities or other characteristics. The environmental parameters specified for the class are limited to those which may affect equipment performance. environmental parame
37、ters: present one or more properties of the electromagnetic environment ETSI ETSI TR 101 651 V2.1.1 (2016-01) 7 interface “A“: terminals at which a power supply is connected to the telecommunications equipment interface A3: interface, physical point, at which power supply is connected in order to op
38、erate the telecommunications and datacom (ICT) equipment with input DC voltage between 260 V and 400 V power supply: power source (within the scope of the present document) to which telecommunications equipment is intended to be connected pulse (161-02-02): abrupt variation of short duration of a ph
39、ysical quantity followed by a rapid return to the initial value Radio Frequencies (RF): frequency range above 150 kHz rise time (of a pulse) (161-02-05): interval of time between the instants at which the instantaneous value of a pulse first reaches a specified lower value and then a specified upper
40、 value NOTE: Unless otherwise specified, the lower and upper values are fixed at 10 % and 90 % of the pulse magnitude. shielding effectiveness: for a given external source, the ratio of electric or magnetic field strength at a point before and after the placement of the shield in question surge (vol
41、tage) (161-08-11): transient voltage wave propagating along a line or a circuit and characterized by a rapid increase followed by a slower decrease of the voltage telecommunication network: network operated under a licence granted by a national telecommunications authority which provides telecommuni
42、cations between network termination points (NTPs) (i.e. excluding terminal equipment beyond the NTPs) transient (adjective or noun) (161-02-01): pertaining to or designating a phenomenon or a quantity which varies between two consecutive steady states during a time interval which is short compared w
43、ith the timescale of interest 3.2 Abbreviations For the purposes of the present document the following abbreviations apply: AC Alternating Current ASD Adjustable Speed Drive CT Cordless TelephonyCT-2 Cordless Telephone, second generation DC Direct Current DCS Digital Cellular System DECT Digital Enh
44、anced Cordless Telecommunications EMC Electro-Magnetic Compatibility ESD Electrostatic Discharge GSM Global System for Mobile Communications HV High VoltageIEC International Electrotechnical Commission IMT Iinternational Mobile Telephone ISDN Integrated Services Digital Network ITE Information Techn
45、ology Equipment ITU-T International Telecommunication Union-Telecommunication standardization sector PDC Personal Digital Cellular PHS Personal Handy phone System RF Radio Frequency rms root-mean-square TN-C Terra-Neutral Combined NOTE: See IEC 60364-1 i.3. TN-S Terra-Neutral Separated NOTE: See IEC
46、 60364-1 i.3. ETSI ETSI TR 101 651 V2.1.1 (2016-01) 8 4 Application area The present document applies to telecommunication equipment installed and controlled by the network operator which is installed in telecommunications centres, outdoor locations and customers premises. It does not make reference
47、s to equipment dependent details. 5 Characteristics of environments 5.1 Telecommunication and Data centres 5.1.0 General The internal electrical power distribution is a 48 V DC nominal (alternatively 60 V DC) (according to ETSI EN 300 132-2 i.2) and a 230 V/400 V AC nominal 50 Hz (according to ETSI
48、ETS 300 132-1 i.1). In data centres the power distribution can be 365 V DC 15 V. It is assumed that switching of loads on the DC supply seldom occurs, and therefore, has not been taken into account. Battery back-up is available at 48 V DC (alternatively 60 V DC) and at 365 V DC 15 V. NOTE 1: Local e
49、mergency generators are not assumed. Primary protection on incoming cables is not assumed. NOTE 2: If primary protection is present, differential mode transients could occur. Internal AC power cables are kept separate at some distance to DC power cables and signal cables in order to reduce mutual coupling. No separation is assumed between DC power cables and signal cables. Normal practice is to use grounded, metallic cable supports. Cables from telecommunication centres to customers premises are assumed to be unshielded. Some Electrosta
