Qto_DistributionBoardBaseQuantities Base quantities that are common to the definition of all occurrences of electric distribution board. IfcElectricDistributionBoard IfcElectricDistributionBoard GrossWeight Total Gross Weight of the object without any add-on parts and not taking into account possible processing features (cut-out's, etc.) or openings and recesses. Q_WEIGHT Gross Weight NumberOfCircuits Number of circuits. Number of circuits in the distribution board. Q_COUNT Number Of Circuits