Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

IEC

Interchange of conductors

The interchange form shows conductors crossing over so that their positions change along the run. On transmission lines it represents transposition, used to balance phase impedances. On motor and generator circuits it may show a deliberate swap of two phases to reverse rotation or to correct phase sequence.

Drawing use: SLD / Schematic
Application: Connections & wiring
Reference family: IEC
Form evidence: Conductor interchange form. Independent IEC-context illustration; not certified IEC geometry.

A distinction that matters

Interchanged conductors change position or phase; an unconnected crossing just passes over another conductor with no change.

Full reference

CROSSING

Symbols

Unconnected conductor crossing

An unconnected crossing shows conductors passing across each other in the drawing without an electrical junction. The wires overlap in the two-dimensional page layout but remain distinct circuits. A gap or bridge/loop makes that distinction visible where the selected drawing convention uses one.

Drawing use: Schematic
Application: Connections & wiring
Reference family: Manufacturer

A distinction that matters

A gap or bridge is a drafting convention, not a physical cable crossover dimension.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.