// InstallationSpace
var oInstallationSpace = new InstallationSpace();
oInstallationSpace.Create(oProject, "BusBarSystem_InstallationSpace");

// CopperBundle
var copperBundle = CopperBundle.Create(oProject, new List<Placement3D>());
copperBundle.Parent = oInstallationSpace;
copperBundle.Properties.COPPERBUNDLE_DESIGNATION = "RIT.BBS.RiLine60_1_ECu15x05_2400 - BusBarSystem";

// BusBarSystem
var oBusBarSystem = new BusBarSystem();
var article = "RIT.BBS.RiLine60_1_ECu15x05_2400";
var variant = "1";
var numberOfHolders = 3;
var length = 240;
oBusBarSystem.Create(oProject, article, variant, numberOfHolders, length);
oBusBarSystem.Parent = copperBundle;