Equipment for Electrical Energy Measurement and Load Control

This European Standard applies to newly manufactured static watt-hour meters intended for residential, commercial and light industrial use, of class indexes A, B and C, for the measurement of alternating current electrical active energy in 50 Hz networks. It specifies particular requirements and type test methods. It applies to static watt-hour meters for indoor and outdoor application, consisting of a measuring element and register(s) enclosed together in a meter case. It also applies to operation indicator(s) and test output(s). If the meter has (a) measuring element(s) for more than one type of energy (multi-energy meters), or when other functional elements, like maximum demand indicators, electronic tariff registers, time switches, ripple control receivers, data communication interfaces etc. are enclosed in the meter case (multi-function meters) then this standard applies only for the active energy metering part. This standard distinguishes between: – meters of class indexes A, B and C; – direct connected and transformer operated meters; – meters for use in networks equipped with or without earth fault neutralizers. It does not apply to: – watt-hour meters where the voltage across the connection terminals exceeds 600 V (line-to-line voltage for meters for polyphase systems); – portable meters; – reference meters. Methods for acceptance testing are covered by the IEC 62058 series of standards. The dependability aspect is covered by the documents of the IEC 62059 series.

This European Standard applies to newly manufactured electromechanical watt-hour meters intended for residential, commercial and light industrial use, of class indexes A and B, for the measurement of alternating current electrical active energy in 50 Hz networks. It specifies particular requirements and type test methods.

It applies to electromechanical watt-hour meters for indoor and outdoor application, consisting of a measuring element and register(s) enclosed together in a meter case. It also applies to operation indicator(s) and test output(s).

If the meter has (a) measuring element(s) for more than one type of energy (multi-energy meters), or when other functional elements, like maximum demand indicators, electronic tariff registers, time switches, ripple control receivers, data communication interfaces etc. are enclosed in the meter case (multi-function meters) then this standard applies only for the active energy metering part.

This standard distinguishes between:

- meters of class indexes A and B;

- direct connected and transformer operated meters;

- meters for use in networks equipped with or without earth fault neutralizers. It does not apply to:

- watt-hour meters where the voltage across the connection terminals exceeds 600 V (line-to-line voltage for meters for polyphase systems);

- portable meters.

The safety aspect is covered by EN 62052-31:2016.

Regarding acceptance tests see EN 62058-11:20 and EN 62058-21:20.

The dependability aspect is covered by the documents of the IEC 62059 series.

This European Standard applies to newly manufactured watt-hour meters, measuring active electrical energy, intended for residential, commercial and light industrial use, for use on 50 Hz electrical networks. It specifies general requirements and type tests methods.

It applies to electromechanical or static watt-hour meters for indoor and outdoor application, consisting of a measuring element and register(s) enclosed in a meter case. It also applies to operation indicator(s) and test output(s).

If the meter has (a) measuring element(s) for more than one type of energy (multi-energy meters), or when other functional elements, like maximum demand indicators, electronic tariff registers, time switches, ripple control receivers, data communication interfaces, etc. are enclosed in the meter case (multi-function meters) then this standard applies only for the active energy metering part.

This standard distinguishes between:

- electromechanical and static meters;

- meters of class indexes A, B and C;

- direct connected and transformer operated meters;

- protective class I and protective class II meters;

- meters intended to be used indoors and outdoors.

It does not apply to:

- watt-hour meters where the voltage across the connection terminals exceeds 600 V (line-to-line voltage for meters for polyphase systems);

- portable meters;

- reference meters.

For rack-mounted meters, the mechanical properties are not covered in this standard.

The test levels are regarded as minimum values to guarantee the proper functioning of the meter under normal working conditions. For special applications, other test levels might be necessary and should be agreed on between the user and the manufacturer.

The safety aspect is covered by EN 62052-31:2016.

This Technical Specification is part of the EN 62056 / 52056 DLMS/COSEM suite and specifies the DLMS/COSEM communication profile for compatibly extendable power line carrier neighbourhood networks using Adaptive Multi-Carrier Spread-Spectrum (AMC-SS). The physical layer provides a modulation technique that efficiently utilizes the allowed bandwidth within the CENELEC A band (3 kHz – 95 kHz), offering a very robust communication in the presence of narrowband interference, impulsive noise, and frequency selective attenuation. The physical layer of AMC-SS is defined in Clause 5 of CLC/FprTS 50590:2014. The data link (DL) layer consists of three parts, the ‘Medium Access Control’ (MAC) sub-layer, the Logical Link Control (LLC) sub-layer and the ‘Convergence’ sub-layer. The data link layer allows the transmission of data frames through the use of the power line physical channel. It provides data services, frame integrity control, routing, registration, multiple access, and cell change functionality. The MAC sub-layer and the LLC sub-layer of AMC-SS are defined in Clause 6 of CLC/FprTS 50590:2014. The Convergence sub-layer is defined in this document. The transport layer, the application layer and the data model are as specified in the EN 62056 DLMS/COSEM suite.

This Technical Specification specifies the EN 62056 DLMS/COSEM communication profile for metering purposes based on the Recommendations ITU-T G.9901: Narrowband Orthogonal Frequency Division Multiplexing Power Line Communication Transceivers – Power Spectral Density Specification and ITU-T G.9903 Narrow-band orthogonal frequency division multiplexing power line communication transceivers for G3-PLC networks, an Orthogonal Frequency Division Multiplexing (OFDM) Power Line Communications (PLC) protocol. The physical layer provides a modulation technique that efficiently utilizes the allowed bandwidth within the CENELEC A band (3 kHz – 95 kHz) (although ITU-T G.9903 defines the protocol for CENELEC B, ARIB and FCC bands as well), thereby allowing the use of advanced channel coding techniques. This combination enables a very robust communication in the presence of narrowband interference, impulsive noise, and frequency selective attenuation. The medium access control (MAC) layer allows the transmission of MAC frames through the use of the power line physical channel. It provides data services, frame validation control, node association and secure services. The 6LoWPAN adaptation sublayer enables an efficient interaction between the MAC and the IPv6 network layers. The IPv6 network protocol; the latest generation of IP (Internet Protocol), widely opens the range of potential applications and services for metering purposes (but not limited to metering purposes). The transport layer, the application layer and the data model are as specified in the EN 62056 DLMS/COSEM suite.

This Technical Specification is part of the EN 62056 / 52056 DLMS/COSEM suite and it specifies the DLMS/COSEM communication profiles for power line carrier neighbourhood networks using the modulation specified in ITU-T G.9904:2012. There are three profiles specified: - a profile using the EN 61334-4-32:1996 LLC layer; - a profile using TCP-UDP/IPv4; - a profile using TCP-UDP/IPv6.

This Technical Specification specifies the physical layer, medium access control layer and logical link control layer for communication on an electrical distribution network between a master node and one or more slave nodes using adaptive multi-carrier spread spectrum (AMC SS) technique. The adaptive cellular communication network technology provided in this specification may be used for automated meter reading as well as for other distribution network applications.

This Technical Specification contains 4 profile specifications: • the DLMS/COSEM SMITP B-PSK PLC Profile (clause 4) • the Original-SMITP B-PSK PLC Profile (clause 5) • the Original-SMITP IP Profile (clause 6) • the Original-SMITP Local data exchange profile (clause 7) The DLMS/COSEM SMITP B-PSK profile defines the use of the CLC/FprTS 50568-4 communication protocol and methods to access and exchange data modelled by the COSEM objects of EN 62056 6 2 via the EN 62056-5-3 application layer. This section forms part of the DLMS/COSEM suite as described in FprEN 62056-1-0. NOTE In the following, the expression Original-SMITP refers to the open protocol originally developed and maintained by the Meters and More Open Technologies association (see Foreword). The Original-SMITP Profiles define the access and exchange of data modelled by the Original-SMITP data model (clause 9) using the Original-SMITP application services (Clause 8). The “Original-SMITP” specifications refer to smart metering system specifications defined prior to the availability of the DLMS/COSEM SMITP B-PSK PLC Profile. The “Original-SMITP” specifications do not form part of the DLMS/COSEM suite of EN 62056.

This Technical Specification specifies the characteristics of the profile related to Physical and Data Link Layers for communications on LV distribution network between a Concentrator (master node) and one or more slave nodes. The following prescriptions are applied to groups of devices that communicate using low voltage network. Each section of the network is composed by one Concentrator (acting as the master of the section), and one or more primary nodes (A-Nodes). Every A-Node can optionally be associated to one secondary node (B-Node).