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BS EN IEC 62488-3:2021

BS EN IEC 62488-3:2021

$215.11

Power line communication systems for power utility applications – Digital Power Line Carrier (DPLC) terminals and hybrid ADPLC terminals

Published By Publication Date Number of Pages
BSI 2021 82
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This part of IEC 62488 applies to power line carrier terminals and networks used to transmit information over power networks including extra high, high and medium voltage (EHV/HV/MV) power lines using both digital and optionally analogue modulation systems in a frequency range between 16 kHz and 1 MHz (see also IEC 62488-1). In many countries, power line carrier (PLC) channels represent a significant part of the utilityowned telecommunication system. A circuit normally routed via a PLC channel can also be routed via a channel using a different transmission medium such as point to point radio, optical fibre or open wire circuit. It is therefore important that the input and output interfaces that are used between terminals in the communication system are standardised. The issues requiring consideration of DPLC and/or APLC devices as parts of a telecommunication network can be found in IEC 62488-1. Figure 1 shows the correspondence between the elements needed to implement PLC systems and the related International Standards.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 CONTENTS
12 FOREWORD
14 INTRODUCTION
15 1 Scope
16 2 Normative references
Figures
Figure 1 – Schematic representation of the elements needed to implement a PLC system
17 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
18 3.2 Abbreviated terms
19 4 Generic structure of DPLC and ADPLC terminals
20 Figure 2 – Generic architecture of a DPLC terminal
21 Figure 3 – Generic structure of an ADPLC terminal
22 5 Access side interfaces
5.1 General
5.2 Digital interfaces
5.2.1 Ethernet IEEE 802.3 interface
Figure 4 – ETH IEEE 802.3 RJ45 type connector
23 5.2.2 Serial interface
5.3 Analogue interfaces
Figure 5 – ETH IEEE 802.3 SC type connector
24 5.4 Teleprotection system interface
5.4.1 Description
5.4.2 Integrated teleprotection
5.4.3 Teleprotection interface frequency band
5.4.4 Teleprotection interface impedance
5.4.5 Teleprotection interface reflection
25 5.4.6 Teleprotection interface signal levels
5.4.7 Teleprotection interface control circuits
6 HF line interface
6.1 DPLC high frequency band & channeling
26 6.2 Frequency accuracy
6.3 Signal levels
6.4 In-band emissions
6.5 Nominal impedance
6.6 Return loss
6.7 Degree of unbalance to earth
6.8 Tapping loss
27 6.9 Spurious emissions
Figure 6 – Tapping loss limits for DPLC terminals
28 6.10 Nominal output power in the high frequency band
7 Quality and performance
7.1 General
Figure 7 – Max level of spurious emissions outside the high frequency band
29 7.2 Dynamic range of the DPLC receiver
7.3 Bit rate
Figure 8 – Reference points for measuring DPLC parameters
30 7.4 Start-up time
7.5 Recovery time after synchronization loss
7.6 Sensitivity
7.7 Selectivity
7.8 Adaptability to line conditions
7.9 Quality of voice channels
31 7.10 Telephone signalling transmission
7.11 Quality on the serial DATA channels
7.11.1 General
7.11.2 Bit rate
7.11.3 BER
Figure 9 – Block diagram of a serial data channel
Tables
Table 1 – Dependence of voice channel quality vs. DPLC capacity
32 7.11.4 Nominal transmission link delay
7.12 Quality of the frame transmission using Ethernet interfaces
7.12.1 General
7.12.2 LAN to LAN Speed
7.12.3 LAN to LAN latency
7.12.4 Packet loss on the LAN transfer
8 Testing
8.1 General
33 8.2 Test setup for DPLC link tests
8.3 Signal to noise ratio
8.4 Return loss
34 Figure 10 – Test circuit for return loss measurement
35 8.5 Degree of unbalance to earth
8.5.1 General
8.5.2 Longitudinal conversion loss
Figure 11 – Test circuit for LCL measurement (transmission port)
36 8.5.3 Output signal balance
8.6 Tapping loss
Figure 12 – Test circuit for OSB measurement (Rx port)
37 8.7 Spurious and in-band emissions
Figure 13 – Test circuit for tapping loss measurement
38 8.8 Selectivity
Figure 14 – Test circuit for spurious and in-band emissions measurement
39 Figure 15 – Test circuit for selectivity measurement
40 8.9 Bit error rate
41 Figure 16 – Test circuit for bit error rate measurement
42 8.10 Serial data transmission delay
Figure 17 – Test circuit for serial data transmissiondelay measurement with a data tester
Figure 18 – Test circuit for serial data transmission delay measurement
43 8.11 Dynamic range of the DPLC receiver
8.12 LAN to LAN testing
8.12.1 General
Figure 19 – Test circuit for maximal throughput and latency measurement
44 8.12.2 Maximum LAN to LAN throughput
8.12.3 LAN to LAN latency
8.13 Start-up time
8.14 Recovery time after synchronization loss
45 9 Configuration and management
9.1 General
9.2 Configuration
9.3 Network management system
9.4 Local terminal alarms
46 9.5 Event logging
10 Cyber security
10.1 General
10.2 Transmitted payload
10.3 Management interface
10.3.1 General
47 10.3.2 Legacy-style management interfaces / Manufacturer-specific management interfaces
10.3.3 LAN/WAN connected management interfaces
10.3.4 Authentication and role-base model
10.4 Network management system interface
48 10.5 Security-related event logging
11 DPLC safety
11.1 General
11.2 Safety reference standard
11.3 Classification of DPLC terminals
Table 2 – Basic insulation (Table C.6 of IEC 6025527:2013)
49 11.4 Ingress protection
Table 3 – Double or reinforced insulation (Table C.10 of IEC 6025527:2013)
50 11.5 Type and routine tests
51 Table 4 – List of Type and Routine Tests (Table 12 of IEC 6025527:2013)
52 12 Storage and transportation, operating conditions, power supply
12.1 Storage and transportation
12.1.1 Climatic conditions
Table 5 – Classification of climatic conditions (Table 1 of IEC 60721-3-1:1997)
53 12.1.2 Mechanical
Table 6 – Climatic tests for storage and transportation
54 Table 7 – Classification of mechanical conditions for transportation(Table 5 of IEC 60721-3-2:1997)
55 12.2 Operating conditions
12.2.1 Climatic conditions
Table 8 – Classification of climatic conditions from Table 1 of IEC 6072133:2002
56 12.2.2 Mechanical
12.2.3 Operating conditions set of tests
Table 9 – Classification of mechanical conditions from Table 6 of IEC 6072133:2002
Table 10 – Climatic Tests
57 12.3 Power supply
12.3.1 AC supply
12.3.2 DC supply
Table 11 – Sinusoidal vibration test
Table 12 – Non-repetitive shock test
58 13 EMC
13.1 Emission and immunity reference standards
13.2 Emission
13.2.1 Radiated and conducted emission
59 Table 13 – Emission – Enclosure port (Table 1 of IEC 6100064:2011)
61 Table 14 – Emission – Low voltage AC and DC mains port (Table 2 of IEC 6100064:2011)
62 Table 15 – Emission – Telecommunications/network port (Table 3 of IEC 6100064:2011)
63 13.2.2 Low frequency disturbance emission
13.3 Immunity
13.3.1 EMC environment
Figure 20 – LF disturbances measurement setup
64 Table 16 – Characterization of the electromagnetic phenomena (Table 1 of IEC 6100065:2015)
Table 17 – Port classification
65 13.3.2 Functional requirements
13.3.3 Immunity test list
Table 18 – Performance criteria
66 Table 19 – Immunity test list
68 Annex A (informative)HF modulated power signal for ADPLC
A.1 General
A.2 Computation model of ADPLC
69 Figure A.1 – Calculation model of load capacity for ADPLC
70 A.3 Distribution of E/U ratio of voice channels
71 Figure A.2 – Cumulative distributions of E/U ratio of voice channels for positive half
Table A.1 – Approximation formula for E/U cumulative distribution of speech
72 A.4 Distribution of E/U ratio of sinusoidal waves
Figure A.3 – Probability density of combined sine waves
73 A.5 Example of E/U ratio of a digital signal
Figure A.4 – Constellation diagram of 64 QAM
Figure A.5 – Amplitude spectra of unmodulated OFDM sub-carriers
74 A.6 Composite distribution of E/U ratios
Figure A.6 – Probability of constellation point power in 64 QAM
Table A.2 – PDF of constellation point power in 64 QAM constellation diagram
75 Figure A.7 – Cumulative distribution of comprehensive E/U ratios
76 A.7 RMS power and load capacity of voice signals
77 Figure A.8 – Cumulative distribution of equivalent volume for N system channel
78 A.8 Comprehensive load capacity for ADPLC
Table A.3 – Calculation of PRMS(1 %) and load capacity
79 A.9 Simplified computation method for comprehensive load capacity
80 Bibliography

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BS EN IEC 62488-3:2021
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