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

Distribution board plan mark

On installation plans a distribution board is drawn as a rectangle against the wall, typically half filled or crossed, with its designation such as DB-1 written beside it. Home-run arrows from outlets and lights terminate in labels that refer back to this board.

Drawing use: GA
Application: Installation & communications
Reference family: IEC
Form evidence: Distribution board, installation plan. IEC 60617 installation-plan style (architectural and topographical installation symbols); independently drawn, not certified IEC geometry or a database identifier.

A distinction that matters

A switchboard object on a GA shows a physical lineup; the plan mark only locates a board on a building plan.

Full reference

PNL

IEEE / ANSI

ANSI panelboard plan symbol

US plans draw panelboards as rectangles against the wall, with fill or hatching that distinguishes flush-mounted from surface-mounted cabinets. The panel name, such as LP-1A, is written beside it and matches the panel schedule and home-run labels.

Drawing use: GA
Application: Installation & communications
Reference family: IEEE / ANSI
Form evidence: Panelboard. US architectural electrical plan practice in the ANSI Y32.9 lineage, read alongside IEEE 315 context; independently drawn, not a certified IEEE or ANSI graphic.

A distinction that matters

The IEC distribution board plan mark serves the same locating role under a different convention.

Full reference

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