1、BRITISH STANDARD BS EN 50065-7:2001 Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz Part 7: Equipment impedance The European Standard EN 50065-7:2001 has the status of a British Standard ICS 33.040.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED
2、BY COPYRIGHT LAWBS EN 50065-7:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 10 April 2002 BSI 10 April 2002 ISBN 0 580 39474 3 Nati
3、onal foreword This British Standard is the official English language version of EN 50065-7:2001. The UK participation in its preparation was entrusted to Technical Committee PEL/205, Mains signalling, which has the responsibility to: A list of organizations represented on this committee can be obtai
4、ned on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” fa
5、cility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions 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 obli
6、gations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This
7、document comprises a front cover, an inside front cover, the EN title page, pages 2 to 23 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 50065-7 NORME EURO
8、PENNE EUROPISCHE NORM November 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC - All rights of exploitation in
9、 any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50065-7:2001 E ICS 33.040.30 English version Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz Part 7: Equipment impedance Transmission de signaux sur les rseaux lectriques basse
10、 tension dans la bande de frquences de 3 kHz 148,5 kHz Partie 7: Impdance des appareils Signalbertragung auf elektrischen Niederspannungsnetzen im Frequenzbereich 3 kHz bis 148,5 kHz Teil 7: Gerteimpedanzen This European Standard was approved by CENELEC on 2000-08-01. CENELEC members are bound to co
11、mply 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-date lists and bibliographical references concerning such national standards may be obtained on application to the Central S
12、ecretariat 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 under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status
13、as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 50065-7:2
14、001 - 2 - Foreword This European Standard was prepared by SC 205A, Mains communicating systems, of Technical Committee CENELEC TC 205, Home and Building Electronic Systems (HBES). The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50065-7 on 2000
15、-08-01. The following dates were fixed : latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2003-04-01 A
16、nnexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are given for information only. In this standard, annexes A, B, C and D are informative. EN 50065 consists of the following parts, under the general title: Signalling on low voltage electrical instal
17、lations in the frequency range 3 kHz to 148,5 kHz Part 1 General requirements, frequency bands and electromagnetic disturbances Part 2-1 Immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in residential,
18、 commercial and light industrial environments Part 2-2 Immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in industrial environments Part 2-3 Immunity requirements for mains communications equipment and
19、systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors Part 4-1 Low voltage decoupling filters Generic specification Part 4-2 Low voltage decoupling filters Safety requirements Part 4-3 Low voltage decoupling filters Incoming filt
20、er Part 4-4 Low voltage decoupling filters Impedance filter Part 4-5 Low voltage decoupling filters Segmentation filter Part 4-6 Low voltage decoupling filters Phase coupler Part 7 Equipment impedance _- 3 - EN 50065-7:2001 Contents Introduction 4 1 Scope 5 2 Normative references 5 3 Definitions 5 4
21、 Requirements. 6 5 Test method . 7 5.1 General 7 5.2 Test conditions 7 5.3 Impedance analyser measuring method . 8 5.4 Voltage ratio method . 9 Annex A (informative) Signalling on low voltage electrical installations in thefrequency range 3 kHz to 148,5 kHz, potential problems. 13 Annex B (informati
22、ve) Minimum value of the equipment impedance 15 B.1 Consumers network impedance . 15 B.2 Type 1 - step 2: measurement of the input impedance (Z m (f) when the DUT is connected to the V-network output port; - step 3: calculation of Z DUT (f) using the Z-parameters and Z m (f). In annex C, a possible
23、calculation method is shown using the Z-parameters.- 9 - EN 50065-7:2001 5.4 Voltage ratio method The measuring method is based on the use of the artificial mains, CISPR 16-1 V-network defined in EN 50065-1 for measuring the output voltage of the mains communication devices. This method does not app
24、ly to devices working in common mode. The measuring equipment for measuring the signal output voltage, as defined in EN 50065-1, is replaced by a signal generator having an output impedance of 50 , working at the measuring frequency and having an output voltage not exceeding 100 dB( V)rms. Using the
25、 relevant switch on the V-network, the generator shall be connected to Line. A differential voltmeter tuned at the measuring frequency with a bandwidth 200 Hz is connected by a high-pass filter blocking the 50 Hz signal and having a high input impedance 1) in parallel with the DUT, 2) between ground
26、 (GND) and neutral (N) of the CISPR 16-1 V-network. The input impedance value of this set (differential voltmeter plus high-pass filter) has to be greater than 20 x |Z ART |, where Z ARTis the impedance of the artificial mains network as defined in EN 50065-1. The earth termination of the device und
27、er test, when this termination is present, shall not be connected to the ground termination (GND) of the artificial mains networks. The block diagram of the measuring set-up is shown in Figure 2. Figure 2 Block diagram for measuring set-up Artificial mains network (V-network) L N GND Signal generator Device under test (DUT) L N earth High-pass filter Differential voltmeter
