Flange design for high-voltage gas-insulated switchgear (GIS), busbars and lines (GIL)

An enclosure for a gas-insulated medium-voltage or high-voltage apparatus comprising a first enclosure tube and a second enclosure tube, both having a longitudinal axis and a radial thickness, and therebetween a connection portion for providing a gas-tight connection between a first end of the first enclosure tube and a second end of the second enclosure tube,

• the connection portion providing a sealing element between the first end and the second end in such a manner that a gas-escape path is sealed in a gas-tight manner, wherein
• the gas-escape path is formed between the first end and the second end and starts at an inside of the first and second enclosure tube and ends at an outside of the first and second enclosure tube,
• the gas-escape path has a first segment running along a direction having a directional component parallel to the longitudinal axis, and
• the sealing element is provided in the first segment,
• the connection portion-comprises a bracket surrounding the first end and the second end, and being provided for applying an axial holding force for holding the first end and the second end together,
• wherein the bracket has a partial ring shape with an axial slit, which allows for an elastic snap fit of the bracket onto the connection portion.