TS 2856

TS 2856 sets out the general principles for creating graphical symbols used on electrical and electronic equipment. The standard addresses how such symbols should be conceived and formed so that equipment markings remain consistent, legible, and technically clear. It is identified as equivalent to IEC 416:1988 and is now withdrawn.

Why graphical symbols matter on equipment

In general technical practice, graphical symbols reduce dependence on text. They can represent an item of equipment, a control or display, a functional state, or a connection point. On electrical and electronic products, this visual language is especially useful where space is limited, where products are sold or used across language boundaries, or where rapid recognition is important. Well-designed symbols support faster interpretation and help keep markings uniform across a product family or equipment type.

Design principles covered by this standard

The stated scope shows that the standard covers the fundamental rules for developing and constructing symbols, including their shape, size, and application. In practical terms, that means the symbol should be simple, distinguishable, readable at the intended scale, and suitable for the equipment function it identifies. A structured approach to symbol design helps avoid ambiguity and supports a more coherent technical communication system on equipment labels and controls.

• Scope: general rules for developing and constructing graphical symbols for electrical and electronic equipment
• Main focus: symbol shape, size, and how the symbol is applied to equipment
• Typical purpose: identifying parts, controls, displays, states, and connections
• Equivalent reference: IEC 416:1988
• Document status: withdrawn standard