[Global] Reclassification of High-Risk Radiological Work

[Kevin Licklider]

From North Anna,
We use a high risk RWP for surveying under vessel area or keyway to down post from a VHRA to HRA and have RP supervisor on tag out of incore drive system to prevent changes in dose rates.  Then work in keyway is performed on a RWP that is not high rad risk.  The same goes for our reactor cavity after shutdown VHRA posting removed and down posted to allow use of non-high risk RWPs.

From: Global [mailto:global-bounces at list.rpalara.org] On Behalf Of Martinez, Felix
Sent: Wednesday, November 20, 2019 8:57 AM
To: global at list.rpalara.org; Powernet
Subject: [External] [Global] Reclassification of High-Risk Radiological Work

Team:

Questions:

  1.  Has any station re-classified high-risk radiological work to medium or low risk?  If so, what work was re-classified and what was the basis for re-classification?
  2.  Has any station re-classified work on BWR TIP drive areas, PWR incore detectors, or undervessel areas from high-risk?

Background:
INPO 05-008, “Radiological Protection at Nuclear Power Stations”, Section II, “Radiation Dose Control (RP.2)”, contains discussions on controls stations should use during the course of work involving radiological controls.  Criteria RP.2-4 discusses high-risk work activities.  In one section of RP.2-4, 05-008 mentions reclassification of high-risk work as medium or low radiological risk once, “…initial surveys are complete and protective controls are established and validated…”.

Thank you in advance for your responses.

Respectfully,


Felix Martinez
Radiation Protection Engineer
Pacific Gas & Electric Company
Diablo Canyon Power Plant
Bldg 104/2/216
PH: 805-545-3116 | PGR: 3116 | fnmf at pge.com<mailto:fnmf at pge.com>

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