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A rectangle marking the origin of an installation.
Also known as: Distribution board symbol, Fuse board plan symbol, Panelboard plan symbol
On an electrical installation plan a consumer unit is drawn as a rectangle marking where the installation begins and where its protective devices are grouped.
Denotes the board at which an installation originates and its circuits are protected and distributed.
Contexts: Technical drawing
Anchors every circuit on the drawing, since each one is described by the way it occupies at this board.
Contexts: Technical drawing
A rectangle against the wall line, often subdivided by short internal lines for its individual ways.