Abstract An electrical penetrant structure, and a method of making the same, are disclosed for feeding sealingly one or more electrical conductors through a wall, such as the containment vessel wall in a nuclear-powered electrical generating station. The penetrant structure comprises a tubular metal housing through which a metal conductor extends noncentrally but in spaced relation to the surrounding housing wall surface, such surface being annularly recessed ro provide an enlarged chamber filled with resilient insulating material in compression and surrounding a laterally offset portion of said conductor. The method for making such structure involves swagging an assembly of the housing having an external groove therein surrounding a body of insulating material having a noncentral hole through which the conductor extends, this swagging causing the insulating material to be compressed between the housing and conductor and the portion of the conductor adjacent the groove to become laterally offset while embedded in the insulating material.
An electrical penetrant structure, comprising an elongAted tubular metal housing, at least one incompressible metal conductor extending through said housing in spaced relation to the surrounding internal wall surface thereof, a portion of said wall surface adjacent each end of said housing being annularly recessed to provide a transversely enlarged internal chamber adjacent each end of said housing, the axial length of each such recessed wall surface portion being at least equal to half the transverse dimension of the exterior of said housing, the outer edge of each of said portions being arranged axially inwardly from the adjacent outer end of said housing a distance at least equal to said transverse dimension, and resilient insulating material compressed between said housing and conductor and transversely filling and axially extending beyond the ends of each of such chambers, said conductor being noncentrally arranged in said insulating material and the portion of said conductor passing through each chamber being laterally offset toward the corresponding recessed wall surface portion.
Claim 2
Dependent Claim
165 words
An electrical penetrant structure, comprising an elongAted tubular metal housing, at least one incompressible metal conductor extending through said housing in spaced relation to the surrounding internal wall surface thereof, a portion of said wall surface adjacent each end of said housing being annularly recessed to provide a transversely enlarged internal chamber adjacent each end of said housing, the axial length of each such recessed wall surface portion being at least equal to half the transverse dimension of the exterior of said housing, the outer edge of each of said portions being arranged axially inwardly from the adjacent outer end of said housing a distance at least equal to said transverse dimension, and resilient insulating material compressed between said housing and conductor and transversely filling and axially extending beyond the ends of each of such chambers, said conductor being noncentrally arranged in said insulating material and the portion of said conductor passing through each chamber being laterally offset toward the corresponding recessed wall surface portion.
Claim 3
Dependent Claim
22 words
An electrical penetrant structure according to claim 1, wherein said insulating material extends axially outwardly beyond each outer end of said housing.
Claim 4
Dependent Claim
40 words
An electrical penetrant structure according to claim 2, wherein axially separated bodies of said insulating material are arranged within said housing to provide a space therebetween, and said housing has a hole in the wall thereof communicating with said space.