{"schemaVersion":1,"slug":"iec-luminaire-general-plan-symbol","name":"Luminaire general plan symbol","kind":"symbol","abbreviation":"L","aliases":["lighting outlet","light point","luminaire position"],"category":"installation-communications","drawingTypes":["GA"],"referenceFamilies":["IEC"],"summary":"General installation plan symbol for a luminaire or lighting point, drawn as a crossed circle at the ceiling position.","description":["On IEC-style lighting plans a crossed circle marks the position of a luminaire or a lighting outlet. It is the base form that other luminaire symbols modify: lines are added for linear fittings, arrows for spotlights and letters for emergency or special types.","The symbol is placed to scale at the ceiling position and tagged with a fixture type letter keyed to the luminaire schedule. Switching lines connect it to switches, and circuit labels identify the lighting circuit.","The crossed circle on a plan is not a control panel indicator lamp, even though the graphic is similar. Context, scale and the schedule make the difference."],"readingNotes":["Read the fixture type tag against the luminaire schedule.","Follow switching lines to the switch positions."],"drawingChecklist":["Tag each luminaire with its schedule type.","Show switching links.","Label the lighting circuit."],"distinction":"The indicator lamp in control schematics uses a similar graphic but signals equipment state; the plan symbol locates a room luminaire.","facts":[{"label":"Graphic form","value":"Crossed circle at the luminaire position"},{"label":"Companion document","value":"Luminaire schedule"},{"label":"Exact standard graphic","value":"Not reproduced here; confirm the form against IEC 60617 and the project legend"}],"references":[{"sourceId":"iec-diagrams","relevance":"IEC graphical symbol context for installation plans; independently drawn here."},{"sourceId":"autodesk-lamps","relevance":"Public lamp symbol family; the plan luminaire uses a similar crossed-circle element in a different drawing context."},{"sourceId":"pub-object-engineering-design","relevance":"Installation design methodology covering lighting circuits and final distribution."}],"related":["indicator-lamp","iec-one-way-light-switch","iec-wall-mounted-luminaire"],"artwork":"s28-iec-luminaire-general-plan-symbol","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Luminaire, general","reference":"IEC 60617 installation-plan style (architectural and topographical installation symbols); independently drawn, not certified IEC geometry or a database identifier."},"plainEnglish":{"title":"What does Luminaire general plan mean?","introduction":"On IEC-style lighting plans a crossed circle marks the position of a luminaire or a lighting outlet. It is the base form that other luminaire symbols modify: lines are added for linear fittings, arrows for spotlights and letters for emergency or special types.","example":"The symbol is placed to scale at the ceiling position and tagged with a fixture type letter keyed to the luminaire schedule. Switching lines connect it to switches, and circuit labels identify the lighting circuit.","drawings":"The crossed circle on a plan is not a control panel indicator lamp, even though the graphic is similar. Context, scale and the schedule make the difference.","terms":[{"name":"Schematic","meaning":"A drawing showing function and connections rather than physical appearance."}],"diagram":"flow","steps":["Identify the device and form","Read the connections and state","Check the equipment reference"],"caption":"A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.","sources":[{"label":"IEC graphical symbols for diagrams","url":"https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/"},{"label":"Pilot lights: public symbol reference","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-BBCEBBBA-24AD-4D3A-B106-39550AAACA6C.htm"},{"label":"Electrical installation design methodology and references","url":"https://www.electrical-installation.org/enwiki/General_rules_of_electrical_installation_design"}],"detail":"General installation plan symbol for a luminaire or lighting point, drawn as a crossed circle at the ceiling position. The indicator lamp in control schematics uses a similar graphic but signals equipment state; the plan symbol locates a room luminaire.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/iec-luminaire-general-plan-symbol","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/iec-luminaire-general-plan-symbol.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"iec-diagrams","title":"IEC graphical symbols for diagrams","publisher":"IEC","url":"https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/","type":"standard","scope":"IEC 60617 and related symbol-design publications. Full database access requires a subscription.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"IEC graphical symbol context for installation plans; independently drawn here."},{"id":"autodesk-lamps","title":"Pilot lights: public symbol reference","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-BBCEBBBA-24AD-4D3A-B106-39550AAACA6C.htm","type":"cad-reference","scope":"Pilot-light and indication variants. A symbol alone does not establish the indicated operating condition.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public lamp symbol family; the plan luminaire uses a similar crossed-circle element in a different drawing context."},{"id":"pub-object-engineering-design","title":"Electrical installation design methodology and references","publisher":"Schneider Electric — Electrical Installation Guide","url":"https://www.electrical-installation.org/enwiki/General_rules_of_electrical_installation_design","type":"manufacturer","scope":"Public design context. No universal working clearance, equipment dimension or project compliance conclusion is asserted.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Installation design methodology covering lighting circuits and final distribution."}]}