TS EN 60617-8

TS EN 60617-8 is a standard in the graphical-symbols-for-diagrams family that focuses on symbols used for measuring instruments, lamps, and signalling devices. Standards of this kind give drawings a common visual language so that electrical and technical diagrams can be read consistently across design, installation, maintenance, and documentation work.

The technical role of schematic symbols

Graphical symbols represent a device or function with a concise mark instead of a full pictorial drawing. For measuring instruments, the symbols help identify monitoring, indication, or measurement functions in a circuit. For lamps, they indicate light-emitting or warning elements. For signalling devices, they distinguish functions related to status display or operator notification. This distinction reduces ambiguity when different components appear similar on a schematic.

What this title points to

• Graphical symbols intended for electrical and related technical diagrams.
• Specific device and function groups: measuring instruments, lamps, and signalling devices.
• The need for a common reading language in schematic representation.
• A place within the IEC 60617 family that supports consistent symbol naming and presentation.

In general technical practice, such symbols are used across design drawings, control panels, wiring diagrams, and operating documentation. When the same symbol consistently conveys the same function, interpretation errors are reduced, especially in electrical engineering, control systems, and building services diagrams. TS EN 60617-8 should therefore be understood as a section on the standardisation of symbolic representation in technical drawings, regardless of its withdrawn status.