| 摘要 |
<p>PURPOSE: To provide a rubber mold stress cone at prefabricated joint having sufficient flexibility and long term stabilized insulation performance by emplaying a mixture rubber composition of ethylene propylene rubber and phenyl ether oil in the molding and subjecting the molding to crosslinking. CONSTITUTION: In a rubber mold stress cone 1 constituting a prefabricated joint touching a cable insulator 3 and an epoxy unit 2 tightly, a mixture rubber composition of 100 pts.wt. of ethylene propylene rubber and 5-50 pts.wt. of phenyl ether oil is employed in the molding and then the molding is subjected to crosslinking. The crosslinking includes chemical crosslinking using an organic peroxide, e.g. dicumyl peroxide, 1,3-bis-(tertiary butyl peroxyisopropyl)benzene, 2,5-dimethyl-2,5-di-(tertiary butyl peroxy)-hexine-3, in addition to vulcanization.</p> |
