TS 2152

TS 2152 is the standard that sets out the letter symbols used in electrical technology for the telecommunications and electronics fields, providing a common terminology framework for quantity names, letter symbols, and the corresponding names and symbols of units. Such standardization matters because technical documents, circuit drawings, and measurement references rely on consistent notation; when the same quantity is written in different ways, communication errors become more likely.

How letter symbols and units work in practice

In electrical technology, letter symbols provide a compact and widely understood way to represent physical quantities. In telecommunications and electronics this is especially useful because quantities such as frequency, voltage, current, power, impedance, and related parameters appear constantly in circuit descriptions, calculations, and diagrams. The scope of this standard is focused on the naming of these quantities and on the names and symbols of their units, helping technical documents use terms and notation in a consistent manner.

Typical context and document boundaries

In general technical use, a document of this kind helps reduce ambiguity in measurement, calculation, education, and engineering documentation. In electronic circuits and communication systems alike, unit writing is just as important as symbol choice, because inconsistent notation can lead to misreading a formula, a schematic, or a datasheet. This record was published as an equivalent to IEC 27-2:1972 and is now withdrawn, so it should be understood as a historical terminology reference rather than an active edition.