17.220 电学、磁学、电和磁的测量 标准查询与下载

GSO IEC 61788-23:2021 超导性 第23部分：残余电阻比测量 铌超导体的残余电阻比

IEC 61788-23:2018 addresses a test method for the determination of the residual resistance ratio (RRR) of cavity-grade niobium. The test method should be valid for specimens with rectangular or round cross-section, cross-sectional area greater than 1 mm2 but less than 20 mm2, and a length not less than 10 nor more than 25 times the width or diameter.

Superconductivity - Part 23: Residual resistance ratio measurement - Residual resistance ratio of Nb superconductors

GSO IEC 61788-24:2021 超导性 第24部分：临界电流测量 Ag 护套 Bi-2223 超导线材在室温下两次弯曲后保留的临界电流

IEC 61788-24:2018 describes a test method for determining the retained critical current after double bending at room temperature of short and straight Ag- and/or Ag alloy-sheathed Bi-2223 superconducting wires that have the shape of a flat or square tape containing mono- or multicores of oxides. The wires can be laminated with copper alloy, stainless steel or Ni alloy tapes. The test method is intended for use with superconductors that have a critical current less than 300 A and an n-value larger than 5.

Superconductivity - Part 24: Critical current measurement - Retained critical current after double bending at room temperature of Ag-sheathed Bi-2223 superconducting wires

KS C IEC 61788-8-2020 超导性 - 第8部分:Ac损耗测量 - 通过拾取线圈方法在液氦温度下暴露于横向交变磁场的圆形超导线的总Ac损耗测量

Superconductivity — Part 8: AC loss measurements —Total AC loss measurement of round superconducting wires exposed to a transverse alternating magnetic field at liquid helium temperature by a pickup c

KS C IEC 61788-8:2020 超导性 - 第8部分:Ac损耗测量 - 通过拾取线圈方法在液氦温度下暴露于横向交变磁场的圆形超导线的总Ac损耗测量

Superconductivity — Part 8: AC loss measurements —Total AC loss measurement of round superconducting wires exposed to a transverse alternating magnetic field at liquid helium temperature by a pickup c

DL/T 2164-2020 差动电阻式土压力计

Differential Resistance Earth Pressure Gauge

EN IEC 62056-8-8:2020 电力计量数据交换 DLMS/COSEM 套件 第 8-8 部分：ISO/IEC 14908 系列网络的通信配置文件

IEC 62056-8-8:2020 describes how the DLMS/COSEM Application layer and the COSEM object model, as specified in IEC 62056‑5‑3:2017, IEC 62056‑6‑1:2017 and IEC 62056‑6‑2:2017, can be used over the lower layers specified in the IEC 14908 series, forming a DLMS/COSEM ISO/IEC 14908 communication profile. This document is part of the IEC 62056 series. Its structure follows IEC 62056-1-0 and IEC TS 62056-1-1.

Electricity metering data exchange - The DLMS/COSEM suite - Part 8-8: Communication profile for ISO/IEC 14908 series networks

DB43/T 1720.4-2019 多表集抄技术规范 第4部分：通信接口转换器技术

Multi-meter collection technical specification part 4: communication interface converter technology

DB43/T 1720.2-2019 多表集抄技术规范 第2部分：主站与采集终端通信协议

Multi-meter collection technical specification part 2: communication protocol between master station and collection terminal

DB43/T 1720.3-2019 多表集抄技术规范 第3部分：水、气、热、表通信协议

Multi-meter collection technical specification part 3: water, gas, heat, meter communication protocol

DB43/T 1720.1-2019 多表集抄技术规范 第1部分：远程抄表系统建设规范

Multi-meter centralized reading technical specification Part 1: Construction specification for remote meter reading system

EN 62056-6-1:2017 电力计量数据交换 DLMS/COSEM 套件 第 6-1 部分：对象识别系统（OBIS）

IEC 62056-6-1:2017 specifies the overall structure of the OBject Identification System (OBIS) and the mapping of all commonly used data items in metering equipment to their identification codes. This third edition cancels and replaces the second edition of IEC 62056-6-1, published in 2015. It constitutes a technical revision. The main technical changes with respect to the previous edition are listed in Annex B (informative).

Electricity metering data exchange - The DLMS/COSEM suite - Part 6-1: Object Identification System (OBIS)

EN 62056-5-3:2017 电力计量数据交换 DLMS/COSEM 套件 第 5-3 部分：DLMS/COSEM 应用层

IEC 62056-5-3:2017(E) specifies the DLMS/COSEM application layer in terms of structure, services and protocols for DLMS/COSEM clients and servers, and defines rules to specify the DLMS/COSEM communication profiles. It defines services for establishing and releasing application associations, and data communication services for accessing the methods and attributes of COSEM interface objects, defined in IEC 62056-6-2 using either logical name (LN) or short name (SN) referencing. This third edition cancels and replaces the second edition of IEC 62056-5-3, published in 2016. It constitutes a technical revision. The significant technical changes with respect to the previous edition are listed in Annex K (Informative).

Electricity metering data exchange - The DLMS/COSEM suite - Part 5-3: DLMS/COSEM application layer

EN 62056-8-5:2017 电力计量数据交换 DLMS/COSEM 套件 第 8-5 部分：用于邻域网络的窄带 OFDM G3-PLC 通信配置文件

IEC 62056-8-5:2017(E) specifies the IEC 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.9903:2014, Narrowband orthogonal frequency division multiplexing power line communication transceivers for G3-PLC networks, an Orthogonal Frequency Division Multiplexing (OFDM) Power Line Communications (PLC) protocol.

Electricity metering data exchange - The DLMS/COSEM suite - Part 8-5: Narrow-band OFDM G3-PLC communication profile for neighbourhood networks

EN 61788-22-1:2017 超导性 第 22-1 部分：超导电子设备 传感器和检测器的通用规范

IEC 61788-22-1:2017(E) describes general items concerning the specifications for superconducting sensors and detectors, which are the basis for specifications given in other parts of IEC 61788 for various types of sensors and detectors. The sensors and detectors described are basically made of superconducting materials and depend on superconducting phenomena or related phenomena. The objects to be measured (measurands) include magnetic fields, electromagnetic waves, photons of various energies, electrons, ions, a‑particles, and others.

Superconductivity - Part 22-1: Superconducting electronic devices - Generic specification for sensors and detectors

EN 62056-8-6:2017 电力计量数据交换 DLMS/COSEM 套件 第 8-6 部分：用于邻域网络的高速 PLC ISO/IEC 12139-1 配置文件

IEC 62056-8-6:2017 specifies the DLMS/COSEM communication profile for ISO/IEC 12139‑1. High speed PLC (HS-PLC) neighbourhood networks. It uses the standard ISO/IEC 12139-1 established by ISO/IEC JTC1 SC06. Status Published Reference Document IEC 62056-8-6:2017 (EQV) IEC Technical Body IEC/TC 13 date of Availability (DAV) 2017-06-30 ICS 17.220 - Electricity. Magnetism. Electrical and magnetic measurements 35.110 - Networking 91.140.50 - Electricity supply systems A-Deviation(s) Special National Condition(s)

Electricity metering data exchange - The DLMS/COSEM suite - Part 8-6: High speed PLC ISO/IEC 12139-1 profile for neighbourhood networks

EN 62056-4-7:2016 电力计量数据交换 DLMS/COSEM 套件 第 4-7 部分：IP 网络的 DLMS/COSEM 传输层

IEC 62056-4-7:2015 specifies a connection-less and a connection oriented transport layer (TL) for DLMS/COSEM communication profiles used on IP networks. These TLs provide OSI-style services to the service user DLMS/COSEM AL. The connection-less TL is based on the Internet Standard User Datagram Protocol (UDP). The connection-oriented TL is based on the Internet Standard Transmission Control Protocol (TCP). This first edition cancels and replaces the IEC 62056-47 published in 2006 and constitutes a technical revision. It includes the following changes: - This standard is applicable now both for IP4 and IPv6 networks; - Latest editions of the IEC 62056 suite are referenced. DLMS/COSEM IANA-registered port numbers added.

Electricity metering data exchange - The DLMS/COSEM suite - Part 4-7: DLMS/COSEM transport layer for IP networks

EN 60990:2016 接触电流和保护导体电流的测量方法

IEC 60990:2016 is available as IEC 60990:2016 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60990:2016 defines measurement methods for d.c. or a.c. current of sinusoidal or non-sinusoidal waveform, which could flow through the human body, and current flowing through a protective conductor. The measuring methods recommended for TOUCH CURRENT are based upon the possible effects of current flowing through a human body. In this standard, measurements of current through networks representing the impedance of the human body are referred to as measurements of TOUCH CURRENT. These networks are not necessarily valid for the bodies of animals. The specification or implication of specific limit values is not within the scope of this standard. IEC TS 60479 series provides information regarding the effects of current passing through the human body from which limit values may be derived. This standard is applicable to all classes of EQUIPMENT, according to IEC 61140. The methods of measurement in this standard are not intended to be used for TOUCH CURRENTS having less than 1 s duration, patient currents as defined in IEC 60601-1, a.c. at frequencies below 15 Hz, and currents above those chosen for ELECTRIC BURN limits. This third edition cancels and replaces the second edition published in 1999. It constitutes a technical revision. The principal changes in this edition as compared with the second edition are as follows: - the effects names have been updated to reflect increased understanding of the range of effects and is in concert with present usage; - the conditions of use invoking a GRIPPABLE PART have been reduced in the application of the requirements based upon the current understanding of this effect; - the references to ISO 10012-1, which has been replaced by management standard of the same number, have been replaced with explanatory text, where needed to maintain the sense of the document; - former informative Annex H (GRIPPABLE PART) has been deleted from this update as it does not properly represent the full set of conditions under which immobilization can occur. A new informative Annex H (Analysis of frequency filtered touch current circuits measurement) has been added and the Bibliography (formerly Annex M) has been updated with additional references for completeness. This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51. It is not intended for use by manufacturers or certification bodies independent of product standards. Key words: Touch Current, Protective Conductor Current, Current Flow

Methods of measurement of touch current and protective conductor current

DL/T 1592-2016 电能信息采集终端检测装置技术规范

本标准规定了电能信息采集终端检测装置的技术条件，包括检测装置的构成、技术要求、试验方法和试验结果处理。 本标准适用于电能信息采集终端检测装置的检验、验收和使用。

Technical specification of electrical energy data acquisition terminal test equipment

DL/T 698.51-2016 电能信息采集与管理系统第5-1部分：测试技术规范—功能测试

Electric Energy Information Collection and Management System Part 5-1: Test Specifications—Functional Test

DL/T 1593-2016 电能信息采集终端可靠性验证方法

Reliability Verification Method of Electric Energy Information Collection Terminal