ISO 14617-3 defines a specialized, harmonized library of symbols. These geometric representations indicate how physical and functional entities link within a schematic.
The standard, titled "Graphical symbols for diagrams — Part 3: Connections and related devices," is a critical document for engineers and technical designers. It provides a standardized library of symbols used to represent functional connections, mechanical links, and pipelines in technical diagrams. iso 146173 pdf updated
If your diagram includes fiber optics (e.g., SCADA systems), the 2002 standard had no symbol. The 2021 update provides a specific double-arrow node. Using electrical symbols instead is now a non-conformity. ISO 14617-3 defines a specialized, harmonized library of
: Covers general rules, terms, and definitions for graphical symbols in diagrams. ISO 14617-3 defines a specialized
ISO 14617-3:2002 - Graphical symbols for diagrams — Part 3