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Swiss nuclear power and the case for long-term operation
Designed for 40 years but built to last far longer, Switzerland’s nuclear power plants have all entered long-term operation. Yet age alone says little about safety or performance. Through continuous upgrades, strict regulatory oversight, and extensive aging management, the country’s reactors are being prepared for decades of continued operation, in line with international practice.
Emil E. Leitz
Nuclear Technology | Volume 8 | Number 3 | March 1970 | Pages 240-245
Paper | Reactor | doi.org/10.13182/NT70-A28670
Articles are hosted by Taylor and Francis Online.
The N-Reactor complex, which was started up early in 1964 and modified to permit use of the by-product steam for electrical generation in April of 1966, has now operated for almost three years as a dual-purpose reactor. N Reactor has demonstrated itself as a versatile production reactor in the U.S. Atomic Energy Commission complex by operating at thermal power levels up to 4800 MW and operating under a coproduct mode of operation (plutonium - tritium production) in conjunction with providing steam to Washington Public Power Supply System (WPPSS) for electrical generation. This paper identifies N-management's solution to a few of its problems. A program of retubing the N-Reactor steam generators is now being completed without an extended shutdown of the reactor. The exposure to personnel when doing charge-discharge and maintenance work on the reactor is being minimized by decontaminating portions of the primary-system piping prior to extended maintenance.