Brief definition
Cost group 430 (KG 430) under DIN 276 comprises electrical installations — power supply, installations, lighting, communications and security systems in the building.
Relevance for quantity take-off and BoQ
Typical BoQ units: m, pcs, bundled services. Floor plans and installation drawings provide lengths and connection points; completeness is checked at tender stage.
Normraum relevance
Cable routes, connection points and counts for KG 430 come from installation drawings – Normraum detects no electrical symbols. From the as-built floor plan, Normraum supplies rooms with use and area under DIN 277 in the room book plus doors and windows, every item with its source reference: the room structure on which installation zones and the completeness check build.