Article | REF: BN3295 V2

Maintenance of Nuclear Power Plants. General Provisions and Organisation

Author: Jean-Pierre HUTIN

Publication date: July 10, 2017

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1. Maintenance items

1.1 A few vocabulary details

The object to be serviced is a "unit". This word refers to a quasi-autonomous electricity production facility. A nuclear unit comprises :

  • a nuclear part, called the "reactor" or "boiler", whose main function is to supply steam;

  • a conventional (or non-nuclear or conventional) part that generates electricity with a turbine and alternator.

France's nuclear fleet comprises 58 units at 19 sites (figure 1 ). At each site, the nuclear part is of the PWR (Pressurized Water Reactor) type. 34 units deliver 900 MWe, 20 deliver 1,300 MWe and 4 deliver...

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