ETSI TR 102 552-2007 Electromagnetic compatibility and Radio spectrum Matters (ERM) Broadband Electronic Communications through Powerlines A Code of Practice relating to the Standa.pdf

1、 ETSI TR 102 552 V1.1.1 (2007-07)Technical Report Electromagnetic compatibilityand Radio spectrum Matters (ERM);Broadband Electronic Communications through Powerlines:A Code of Practice relating to the Standardizationof the Measurement of Emission,Data Collection and Reporting of ResultsETSI ETSI TR

2、 102 552 V1.1.1 (2007-07) 2 Reference DTR/ERM-EMC-247 Keywords broadband, powerline 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-Prfecture de Gr

3、asse (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 such versions, the

4、 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 subject to revision o

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8、07-07) 3 Contents Intellectual Property Rights4 Foreword.4 1 Scope 5 2 References 5 3 Definitions6 4 Provision of Information 6 4.1 Background Information 6 4.2 Specific Information in cases of harmful interference from a PLC system7 5 Emission measurement methodology.8 5.1 General Arrangements8 5.2

9、 Swept Frequency Emission Measurements 8 5.3 Radiated measurements below 30 MHz .8 5.4 Radiated measurements above 30 MHz .9 5.5 Emission measurements in the presence of wanted radio signals.9 5.6 Short Term Peaks .10 6 Processing of obtained measurement results10 6.1 Correction of measurement resul

10、ts due to near field conditions.10 6.2 Treatment of measurement uncertainty 10 7 Mitigation Measures.10 Annex A: Reporting Pro Forma .11 History 16 ETSI ETSI TR 102 552 V1.1.1 (2007-07) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been decla

11、red 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 to ETSI in respect of ETSI standards“, which

12、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 given as to the existence of other IPRs not r

13、eferenced 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 Technical Report (TR) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present d

14、ocument is designed to ensure a common approach to the measurement of emissions from PLC systems and to facilitate comparable and quantifiable information which Member States can report to the Communications Committee of the European Commission. The European Commission Recommendation of 6 April 2005

15、 on Broadband Electronic Communications through Powerlines states in clause 7: 7. Member States should report to the Communications Committee on a regular basis on the deployment and operations of powerline communications systems in their territory. Such reports should include any relevant data abou

16、t disturbance levels (including measurement data, related injected signal levels and other data useful for the drafting of a harmonized European standard), interference problems and any enforcement measures related to powerline communications systems. This Code of Practice deals with a number of iss

17、ues relating to the deployment of PLC systems, but concentrates, in the main, on measurement methodology and reporting. The principles proposed in this Code of Practice are designed to ensure an open and consistent measurement and reporting process, as required above, which should lead to the effect

18、ive evaluation of the impact of PLC systems on radio communications services and other cable networks. ETSI ETSI TR 102 552 V1.1.1 (2007-07) 5 1 Scope The present document is designed to ensure a common, open and consistent approach to the measurement and reporting process of emissions from publicly

19、 available broadband powerline communications systems and to facilitate comparable and quantifiable information which Member States can report to the Communications Committee of the European Commission following the European Commission Recommendation 2005/292/EC 3 on Broadband Electronic Communicati

20、ons through Powerlines in which it states in clause 7: 7. Member States should report to the Communications Committee on a regular basis on the deployment and operations of powerline communications systems in their territory. Such reports should include any relevant data about disturbance levels (in

21、cluding measurement data, related injected signal levels and other data useful for the drafting of a harmonized European standard), interference problems and any enforcement measures related to powerline communications systems. The present document is intended to be used in its entirety. The present

22、 document deals with a number of issues relating to the deployment of PLC systems, but concentrates, in the main, on measurement methodology and reporting. The present document is applicable to trials and commercial deployment of PLC systems in the European Union and is expected to be used by regula

23、tory authorities, operators of PLC systems and users of the radio spectrum. The present document addresses, inter alia, three principal issues as required by the European Commission Recommendation 2005/292/EC 3: Provision of details of any harmful interference caused by the operation of a PLC system

24、. Emission measurement methodology and reporting in cases of interference. Mitigating measures and their effectiveness in such cases. The present document calls for information on two levels in order to allow for a proper evaluation of the effect of PLC systems: The provision of generic information

25、concerning the deployment of PLC systems in Member States. Specific information about particular PLC systems where harmful interference has been caused to radio services. 2 References For the purposes of this Technical Report (TR) the following references apply: NOTE: While any hyperlinks included i

26、n this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 1 CENELEC EN 55014-1 (2000): “Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus - Part 1: Emission“. 2 CEPT/ECC/Recommendation (05)04: “Criter

27、ia for the assessment of radio interferences caused by radiated disturbances from wire-line telecommunication networks“. 3 Commission Recommendation 2005/292/EC of 6 April 2005 on broadband electronic communications through powerlines. 4 CISPR 16-1-1: “Specification for radio disturbance and immunit

28、y measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus“. 5 CISPR 16-4-2: “Specification for radio disturbance and immunity measuring apparatus and methods - Part 4-2: Uncertainties, statistics and limit modelling - Uncertainty in EMC me

29、asurements“. ETSI ETSI TR 102 552 V1.1.1 (2007-07) 6 6 ITU-R Recommendation P.372-8: “Radio noise“. 7 ITU-T Recommendation K.60: “Emission limits and test methods for telecommunication networks“. 8 CEPT ECC Report 24: “PLT, DSL cable communications (including cable TV) LANS and their effect on radio

30、 services“. 3 Definitions For the purposes of the present document, the following terms and definitions apply: ambient noise: background noise entering a radio receiving installation at the measurement site (electromagnetic) disturbance: any electromagnetic phenomenon which might degrade the perform

31、ance of a device, equipment or system, or adversely affect living or inert matter NOTE: Refer to IEC IEV 161-01-05. harmful interference: interference which endangers the functioning of a radio navigation service or of other safety services, or seriously degrades, obstructs, or repeatedly interrupts

32、 a radiocommunication service operating in accordance with Radio Regulations NOTE: Source: ITU Radio Regulations. measuring system: combination of measurement antenna, receiver and associated equipment, including cables PLC system: system or part of a system that transmits and receives electromagnet

33、ic energy on frequencies above 9 kHz by conduction over medium and/or low voltage electric power lines, with the purpose of carrying information 4 Provision of Information In order to assess the impact of PLC systems on other services information should be provided in a consistent format, to facilit

34、ate collation, comparison and evaluation. This code specifies two types of information to be provided on PLC systems: Background information on the deployment of PLC systems. Specific information in cases of harmful interference. 4.1 Background Information For each PLC network the measurement report

35、 should contain the following: System operator address and contact details. The name address and contact details of the electricity network owner involved. Physical nature of electricity network: overhead wiring / underground wiring / mixture. The location of the PLC system: rural / semi-rural / urb

36、an / industrial. The technical characteristics of the system - manufacturer, technology, frequency spectrum utilized and maximum injection signal levels. An indication of the number of households passed and the number of households subscribing. Date of activation. ETSI ETSI TR 102 552 V1.1.1 (2007-0

37、7) 7 In order to help identify and resolve cases of harmful interference, National Administrations are encouraged to adopt an open approach to publicizing the above information on PLC systems operating within their territory. 4.2 Specific Information in cases of harmful interference from a PLC syste

38、m In cases of harmful interference, data should be reported indicating the nature of the interference and the technical and operational characteristics of the PLC system concerned. An assessment of radio interference should be carried out where preliminary mitigation measures have been ineffective:

39、following the guidance given in the ECC Recommendation (05)04 2; using an alternative method provided this is documented in the test report. It may be necessary for PLC operators to change operational conditions, which may include selective closedown of a system (including repeaters) for short perio

40、ds to aid identification of the source of interference. Where remedial action has been taken this should be reported and described in detail if possible. It is recommended that a general common reporting format (see annex A) be developed to aid collation and analysis of the results of cases of inter

41、ference across Europe. In addition to the information required in clause 4.1 the following information should be provided in cases of harmful interference: Network status at time of interference, the operating mode of the network such as active, passive or test or other mode. Number of interference

42、cases reported in the specific location and type of premises (house, flat, high-rise, housing density etc.). Identification of the service experiencing interference and frequencies affected. Where applicable relevant details of equipment affected parameters e.g. antenna characteristics. An electrica

43、l network plan, where this has been used in measurements. Distance from PLC network cabling and the levels of both the wanted signals and the disturbance at the equipment affected Description of what mitigation measures have been applied and whether these have been successful. The investigation repo

44、rt may also contain the following where appropriate: name of organization making the measurement; location of the measurements and description of the location including whether indoor or outdoor; description of the installation subject to interference; time and date of the measurement; details of th

45、e measuring equipment; set-up of the measuring equipment including any deviations from standard practice; ambient noise at the measurement site; measuring system noise floor; field strength of the wanted signal; field strengths of disturbance at victim location; ETSI ETSI TR 102 552 V1.1.1 (2007-07)

46、 8 method used to extrapolate to the reference distance in case measurements are not made at reference distance; photographs or drawing of the measurement location. 5 Emission measurement methodology This clause specifies measurement procedures and guidelines for the documentation of measurements. W

47、here applicable, the methods should rely on already published documents either in CISPR, ETSI or CENELEC. 5.1 General Arrangements In order to assess the disturbances, the PLC system should operate under normal operating conditions during the measurements. An initial measurement survey should be car

48、ried out to determine the variation of the disturbance levels at the location. The measurement antenna should be located as close as practical to the reported location of the equipment affected. An initial sweep over a range of representative frequencies should be made, including the operational fre

49、quencies of the equipment being affected, in order to identify the interference mechanism and disturbance frequencies. Where outdoor measurements are made an electricity distribution network plan should be used. The measurement report should state any deviation from standardized measurement procedure. 5.2 Swept Frequency Emission Measurements The following clauses define the recommended process. Program the receiver to scan between two frequencies that lie either side of the known PLC s