TS IEC 60757

TS IEC 60757 defines the code used for naming colours in texts, drawings, markings, and similar representations in the electrotechnical field. It helps standardize how colours are referred to in technical documentation, making drawings, diagrams, and equipment markings more consistent and less open to interpretation.

Separating colour names from technical meaning

In electrotechnical practice, a colour is more than a visual attribute; it is also a communication tool used to identify conductors, warnings, markings, or explanatory notes at a glance. A colour designation code reduces the chance that the same colour will be described differently across languages or organizations. The result is a more consistent technical language across drawings, maintenance documents, and product markings.

What this document covers

Based on the stated scope, this standard applies to descriptive texts, drawings, and markings in the electrotechnical field. Its focus is therefore not the equipment itself, but the way colours are named and referenced in documents and explanations. For terminology standards like this, the main value is reducing misunderstanding where several components, circuits, or equipment items appear in the same document.

• Consistent use of colour names in technical drawings and schematics
• Clearer colour references in markings and labels
• A shared technical language across teams and languages
• Reduced ambiguity in electrotechnical documentation

This TS IEC 60757 record is based on IEC 60757:1983 and is now withdrawn. Even so, it remains relevant for understanding how colour designation supports the structure and clarity of technical communication in electrotechnical work.