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US 4,058,671 AGranted
Electrical penetration assembly
AssigneeInternational Telephone and Telegraph Corporation
InventorsGeorge J. Panek, Francis H. Ingham, Albert R. Sedig, Gerald R. Nieman
Life of this patent
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Abstract
An electrical penetration assembly for a nuclear reactor containment wall in which solid copper conductors are removably mounted into the penetration canister from outside the containment wall. Each conductor is mounted in a feedthrough pipe by glass-sealed headers, one of which has a metal bellows that permits axial expansion of the conductor when it is subjected to elevated temperatures.
Claims7
An electrical penetration assembly for installation in a containment wall comprising:
- a canister adapted to be mounted in an opening extending through the containment wall;
- at least one hollow elongated feedthrough pipe extending lengthwise through said canister;
- means removably mounting said pipe in said canister;
- an elongated conductor extending longitudinally through said pipe;
- a first glass-sealed header fixed to one end of said pipe and to one end of said conductor;
- a second glass-sealed header fixed to the other end of said pipe and slidably receiving therein the other end of said conductor;
- and
- a flexible bellows surrounding said other end of said conductor and being connected at one end to said conductor and at its other end to said second glass-sealed header whereby said bellows will accommodate any longitudinal expansion of said conductor due to elevated temperatures.
5 more elements
Dependencies are inferred from the claim text.