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

IEEE / ANSI

ANSI weatherproof receptacle plan symbol

Outdoor receptacles in US practice are drawn with the duplex receptacle form plus WP. The tag tells the installer to fit a weatherproof cover, and for many outdoor locations an in-use cover that stays weatherproof while a cord is plugged in.

Drawing use: GA
Application: Installation & communications
Reference family: IEEE / ANSI
Form evidence: Weatherproof receptacle. 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 weatherproof outlet uses an IP tag; the US form uses WP on the duplex receptacle symbol.

Full reference

HCN1RDUP

IEC

Duplex power receptacle

This form distinguishes a duplex receptacle arrangement.

Drawing use: Schematic
Application: Installation & communications
Reference family: IEC / Manufacturer
Form evidence: Duplex power receptacle. Autodesk IEC-60617 Symbol Preview — Single and duplex power-receptacle forms; vendor family reference, not certified IEC geometry or database identifier.

A distinction that matters

A duplex indication does not establish independent supplies or a particular regional socket standard.

Full reference

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