14 h 8 m, 15 agos 2009 año - Began Pre-Rinsing SWC Filters

Descripción:

In 2009, we began pre-rinsing SWC filters before installation as a result of AI 2009203045. Filters were pre-rinsed in 1R24 (2010). In 1R25 and after, filters have not been rinsed before installation, without clear justification. Installation of filters without prewashing has the potential to cause adverse affects - foaming, conductivity spikes, corrosion. EPRI recommends that SCW filters always be washed in demin water prior to installation, per report 1015669 and subsequent 2013 update “Turbine Generator Auxiliary System Maintenance Guide Volume 4: Generator Stator Cooling Water System”.

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