Am 21.03.2019 um 18:15 schrieb Henry Spencer:
On Thu, 21 Mar 2019, Uwe Klein wrote:you are in vacuum. 20..40kV/mm ( be careful with electrode geometry.)
https://new.siemens.com/global/en/products/energy/high-voltage/power-transmission-lines/gas-insulated-lines.html
Those are for "high voltage" transmission lines. i.e. 400++kV domain.
Their noteworthy advantage is low capacity.
Their other advantage, for this application, is that gas, even highly
pressurized, is a lot lighter than a solid dielectric.