Tripod for installation of DEHNiso-Combi supporting tubes (D50 length 3200 mm). For erection with wedge-mounting concrete bases, without additional fixing on construction elements. Adjustable to the roof inclination up to max. 10°. Hinged design, especially for installing the HVI Conductor inside of the supporting tube. To keep within the bending radius of the HVI Conductor at the bottom of the tripod, put two concrete bases under and one on top of the brace.