Teledyne Brown Engineering What We Do Markets Energy Capabilities Nuclear and Power Systems Nuclear Penetration Assemblies

Since 1965, Teledyne has designed and manufactured Electric Penetration Assemblies (EPAs) for the Commercial Nuclear, Navy, and Defense markets. Our success stems from our ability to offer custom-engineered products that meet all performance and reliability requirements of the nuclear industry. We have hundreds of EPAs in over a dozen nuclear electric generating stations across the United States.

Hermetic, fused-glass seals are one reason for the high performance of Teledyne’s EPAs. These seals possess great mechanical strength and rigidity, and they show superior resistance to temperature cycling. The inherent insulation properties of glass are ideal for nuclear applications, since glass is a radiation-tolerant, stable, inorganic material.

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Teledyne’s EPAs reduce installation costs by eliminating time-consuming pigtail splicing in terminal boxes or wire trays. All field connections can be accomplished in a simple, straightforward fashion. The result is a faster, neater installation with fewer wiring errors and significantly reduced labor costs.

Teledyne has complete capabilities for designing, manufacturing, testing, and documenting EPAs in accordance with IEEE Standard 317 and has both N and NPT ASME certifications. We are dedicated to research and development as the industry and its needs change. This allows us to offer custom-engineered products that meet a wide variety of specialized nuclear applications.

Teledyne’s penetrators have been in place in power plants and submarine applications maintenance free for over 45 years. Teledyne is upgrading its designs to meet current specifications and the 60-year life requirement.