CnOpenData integrates all international standards and related publications issued by the International Electrotechnical Commission (IEC) since its establishment in 1914, covering current, obsolete, and draft standards in the fields of electrical engineering, electronics, power, and related technologies. The data is structured through four core tables (Basic Information Table, Lifecycle Table, Cited Standards Table, and Cited-by Standards Table), encompassing fundamental attributes of standards, dynamic lifecycles, and citation networks between standards. This provides systematic data support for technical compliance, industry research, and analysis of standard evolution.
Key Features:
- Comprehensive and Structured Field Coverage: Four interrelated tables cover full-dimensional information—from basic identification and technical classification to complex relationships—addressing multi-level needs from basic queries to deep network analysis.
- Dynamic Lifecycle Tracking: Independently records key timestamps throughout a standard’s lifecycle (publication, reaffirmation, revision, withdrawal), clearly presenting historical evolution and technological iteration paths.
- Standard Citation Network Analysis: Dedicated tables for citation and cited-by relationships enable the construction of knowledge inheritance graphs and identification of core technical standards and evolutionary trajectories.
- Multi-System Association Mapping: Integrates dual classification systems (ICS and TC) and correlates adopted standard numbers from major countries (e.g., China’s GB/T, Europe’s EN), facilitating cross-mapping research between international and national standards.
Application Value:
- Academic Research: Supports empirical analysis in fields like standardization economics (e.g., impact of standards on international trade and technology diffusion) and innovation management (synergy between technological standardization and industrial innovation).
- Industry and Commercial Services: Tracks technology hotspots and regulatory trends in specific sectors (e.g., renewable energy, industrial automation, medical electrical equipment) through the distribution of newly published standards.
CnOpenData has established a foundational research infrastructure for international standards in the electrotechnical and electronic fields by integrating IEC’s historical and current records. The interlinked four-table structure comprehensively covers lifecycle attributes, technical correlations, and citation networks, supporting diverse applications in academic research, industry analysis, and standardization strategy development to advance technological innovation and global standard layout research.
Data Scale

Time Range
By publication date: 1914–2026.2
Field Display
Sample Data
IEC基本信息表
IEC生命周期表
IEC引用标准表
IEC被引用标准表
数据更新频率
年度更新