Building having a metal, electrically conductive tube, electrical line positioned in a tube of this type, and metal, electrically conductive tube for this purpose

A metallic, electrically conductive tube configured to install electric lines for an electrical power supply of a building in the tube, comprising:

• an electrically conductive and metallic tubular connection part having an inner surface and opposite ends;
• electrically conductive and metallic first and second tube sections, the first tube section having a first outer surface, opposite first and second ends, and a first end section at the first end, the second tube section having a second outer surface, opposite first and second ends, and a second end section at the second end, the first end of the first tube section and the second end of the second tube section facing one another,
• wherein the inner surface of the connection part faces the first outer surface and overlaps the first outer surface in a first overlapping section, the inner surface of the connection part faces the second outer surface and overlaps the second outer surface in a second overlapping section, the connection part overlapping the first end of the first tube section and the second end of the second tube section, wherein the connection of the tube sections is provided by compression and plastic deformation of the connection part in the first and second overlapping sections and of the first and second tube sections in the first and second end sections, in which they adjoin one another directly and in a plastically deformed manner in a compressed state;
• a first contact between the inner surface and the first outer surface in the first overlapping section, the first contact having projections extending therefrom which form indentations in the inner surface when in the compressed state, and projections extending therefrom which form indentations in the first outer surface in the first overlapping section in the compressed state;
• and
• a second contact between the inner surface and the second outer surface in the second overlapping section, the second contact having projections extending therefrom which form indentations in the inner surface when in the compressed state, and projections extending therefrom which form indentations in the second outer surface in the second overlapping section in the compressed state.