Patent ID: 8305184
Filing Date: 2012-11-06
Classification: H01C

Abstract:
1. A surge arrester, comprising: a core including a stack of varistor blocks and two end armatures between which the stack of varistor blocks is held; a plurality of reinforcing elements that extend between the end armatures, that are fixed to the end armatures, and that surround the stack of varistor blocks; at least one stabilizing disc that is arranged between two varistor blocks in the stack and guides the at least one reinforcing element; and an outer housing having a plurality of screens in which the core is at least partially accommodated; wherein the outer housing accommodates the core without substantially any fluid volumes or cavities therebetween; wherein the at least one stabilizing disc is arranged in the region of one of the screens, wherein the plurality of screens of the outer housing are spaced apart with a series of substantially cylindrical portions disposed therebetween, and wherein a thickness of the substantially cylindrical portions is less than a thickness of the outer housing in each area surrounding the end armatures.