Abstract: A method for filling a gas-insulated electric current transmission line with gas using an insulating gas mixture, which line comprises an outer tubular sheath, at least one conductor internal to the sheath and coaxial with this sheath, and a space lying between the at least one conductor and the outer sheath, comprising the steps of: a) applying at least one purging cycle to the space comprising: a pumping step, down to a first vacuum level; a purge step comprising introducing a purge gas and obtaining a first internal atmosphere including the purge gas; b) applying to the space a filling cycle comprising: a pumping step, down to a second vacuum level; a filling step using the insulating gas to obtain a second internal atmosphere.

Abstract: A process for the treatment of objects with an inflammable volatile liquid, in an installation comprising at least one upwardly open tank (16) adapted to be filled with the liquid, a drying device (20) adapted to remove contained treatment liquid from the treated objects, and a transport system adapted to bring an object to be treated above the tank, and to immerse it in the tank, to withdraw it, and to transfer it into the drying device, then to remove it. The tank and the drying device are disposed in a closed chamber (2, 4) containing an atmosphere comprised principally of a protective gas, with an oxygen content maintained sufficiently low that the ignition of the treatment liquid will be impossible. This chamber is separated from the exterior by at least one gas lock (1, 5) containing the same atmosphere. The object to be treated passes through the gas lock to enter the chamber and by the same or another gas lock to be removed.