Use of 1-chloro-2,3,3,3-tetrafluoropropene for isolating or extinguishing electric arcs
The use of a gas as a medium for electrically isolating and/or extinguishing electric arcs, the gas including 1-chloro-2,3,3,3-tetrafluoropropene. Also, an electrical device including a sealed chamber containing electrical components and a gas for electrically isolating and/or extinguishing electric arcs, in which the gas includes 1-chloro-2,3,3,3-tetrafluoropropene. The gas may be only 1-chloro-2,3,3,3-tetrafluoropropene.
1. A method of using a gas as electrical insulation and/or extinguishing medium for electric arcs, wherein the gas comprises 1-chloro-2,3,3,3-tetrafluoropropene, wherein the gas is at a pressure, at 20° C., of 0.1 to 1 MPa.
2. The method as claimed in claim 1 , wherein the 1-chloro-2,3,3,3-tetrafluoropropene comprises more than 80 mol % of 1-chloro-2,3,3,3-tetrafluoropropene in Z form.
3. The method as claimed in claim 1 , as electrical insulation and/or extinguishing medium for electric arcs in a medium-voltage electrical substation appliance.
4. The method as claimed in claim 1 , wherein the gas contains from 10 to 100 mol % of 1-chloro-2,3,3,3-tetrafluoropropene.
5. The method as claimed in claim 1 , wherein the gas also comprises a diluant, and the gas is a binary mixture of 1-chloro-2,3,3,3-tetrafluoropropene and the diluant.
6. The method as claimed in claim 1 , wherein the gas also comprises a halogenated compound.
7. The method as claimed in claim 1 , in a temperature range of which a lower limit is from −30 to 30° C.
8. The method as claimed in claim 1 , wherein the gas consists essentially of 1-chloro-2,3,3,3-tetrafluoropropene.
9. The method as claimed in claim 8 , in a temperature range of which a lower limit is greater than or equal to 10° C.
10. An electrical appliance comprising a leaktight chamber in which electrical components and also an electrical insulation and/or extinguishing gas for electric arcs are found, wherein the gas comprises a 1-chloro-2,3,3,3-tetrafluoropropene, wherein the gas is at a pressure, at 20° C., of 0.1 to 1 MPa.
11. The electrical appliance as claimed in claim 10 , wherein the 1-chloro-2,3,3,3-tetrafluoropropene comprises more than 80 mol % of 1-chloro-2,3,3,3-tetrafluoropropene in Z form.
12. The electrical appliance as claimed in claim 10 , wherein the gas also comprises a diluant, and the gas is a binary mixture of 1-chloro-2,3,3,3-tetrafluoropropene and the diluant.
13. The electrical appliance as claimed in claim 10 , wherein the gas also comprises a halogenated compound.
14. The electrical appliance as claimed in claim 10 , wherein the gas consists essentially of 1-chloro-2,3,3,3-tetrafluoropropene.
15. The electrical appliance as claimed in claim 10 , wherein the electrical appliance is a medium-voltage electrical appliance.
16. The electrical appliance as claimed in claim 10 , wherein the electrical appliance is a high-voltage electrical appliance.
17. The electrical appliance as claimed in claim 10 , wherein the gas is at a pressure, at 20° C., of 0.1 to 0.5 MPa.
18. The electrical appliance as claimed in claim 10 , which is chosen from a gas-insulated electrical transformer, a gas-insulated line for transportation or distribution of electricity, and an electrical connection/disconnection appliance.