Lightning protection device and method of producing same
View Patent ↗A lightning protection device for placing on a structure for protecting, and including a first coating including at least one layer of conductive paint; and a second coating deposited on the surface coating and including a material that is thermally insulating and electrically conductive.
1. A lightning protection device for placing on a structure for protecting, said device comprising:
a first coating comprising at least one layer of conductive paint; and
a second coating deposited on the first surface coating and comprising a material that is thermally insulating and electrically conductive.
2. A device according to claim 1 , wherein the second coating presents a thermal conductivity of less than 0.1 Wm −1 K −1 .
3. A device according to claim 2 , wherein the second coating presents a surface resistivity of less than 200 ohms.
4. A lightning-sensitive structure that is to operate in high temperature environments, wherein at least a portion thereof is provided with a lightning protection device according to claim 1 .
5. A structure according to claim 4 , wherein the structure constitutes at least one of the following thruster elements: a nozzle; an afterbody; and a shroud.
6. A method of making a lightning protection device on a structure for protecting, said method comprising:
depositing on the structure for protecting a first coating comprising at least one layer of conductive paint;
depositing a second coating on the first coating, the second coating comprising a material that is thermally insulating and electrically conductive.
7. A method according to claim 6 , wherein the second coating presents a thermal conductivity of less than 0.1 Wm −1 K −1 .
8. A method according to claim 6 , wherein the second coating presents a surface resistivity of less than 200 ohms.