| 摘要 |
<p>46,986 ADHERENT COATING FOR ENTRAPPING CONTAMINATION PARTICLES IN GAS-INSULATED ELECTRICAL APPARATUS A tacky or sticky coating is provided on selected surface areas inside compressed gas-insulated systems to trap conducting and semiconducting particles which, if allowed to remain free, can promote breakdown between metallic parts or electrodes maintained at different potentials, or which may initiate tracking and flashover along insulating surfaces. The initially hard, dry coating is comprised of a binder component and an active component. The binder component is chemically inert to both the insulating gas within the apparatus and a solvent vapor, while the active component is capable of interacting with the solvent vapor to become tacky. The insulating coating, after exposure to the solvent vapor, becomes tacky on the surface to thereon entrap contamination particles, but the addition of the binder component prevents the coating from sagging but instead maintains its spatial position on the selected surface areas.</p> |
