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System Operator Transmission Owner Codes

✓ Published0🌍 Public
FFraserMacMillanGithub
Last edited Mar 21, 2018
Created on Feb 28, 2018

This interactive visualization maps the structure of National Grid’s System Operator Transmission Owner (STC) codes using an animated hierarchy. Each top-level procedure (e.g., Operational Switching, Alarm and Event Management) expands into child nodes with values and links to official PDF documents. Rendered as an SVG with a collapsible tree layout, the graphic uses color-coded nodes and tooltips to support navigation. A searchable interface highlights relevant procedures, making it easy to explore how operational standards are organized and connected.

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