ML17263A622
| ML17263A622 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 09/20/2017 |
| From: | Region 2 Administrator |
| To: | Duke Energy Progress |
| References | |
| BSEP 17-0073 | |
| Download: ML17263A622 (6) | |
See also: IR 05000324/2017301
Text
(~ DUKE
ENERGYe
AUG 0 9 2017
Enclosures Contain Operator Examination Material
Withhold from public disclosure until
completion of examination
Serial: BSEP 17-0073
U.S. Nuclear Regulatory Commission, Region II
ATTN: Ms. Catherine Haney, Regional Administrator
245 Peachtree Center Ave, NE, Suite 1200
Atlanta, GA 30303-1257
Subject:
Brunswick Steam Electric Plant, Unit Nos. 1 and 2
Renewed Facility Operating License Nos. DPR-71 and DPR-62
Docket Nos. 50-325 and 50-324
William R. Gideon
Vice President
Brunswick Nuclear Plant
P.O. Box 10429
Southport, NC 28461
910.457.3698
Reactor Operator and Senior Reactor Operator License Post-Examination
Documentation and Comments
Reference:
Letter from Gerald J. McCoy (NRC) to William R. Gideon (Duke Energy),
"Brunswick Steam Electric Plant - Notification of Licensed Operator Initial
Examination 05000325/2017301 and 05000324/2017301," dated February 1,
2017, ADAMS Accession Number ML 17034A367
Dear Ms. Haney:
In accordance with the guidance contained in Revision 1 O of NUREG-1021, "Operator Licensing
Standards for Power Reactors," Section ES-402, "Administering Initial Written Examinations,"
and ES-501, "Initial Post-Examination Activities," Duke Energy Progress, LLC (Duke Energy), is
providing the NRC the specified documentation for the reactor operator and senior reactor
operator written examinations, which were administered at the Brunswick Steam Electric Plant
on Tuesday, August 8, 2017. The enclosures containing examination documentation are being
provided only to Mr. Phillip Capehart, with his copy of this letter. Duke Energy has post-exam
comments relating to the written examination included with this submittal letter as Enclosure 2.
The master examination and answer key are provided in Enclosure 6 of this letter, with
annotations. All substantive comments made by the applicants following the written examination
are included with Enclosure 2. Lastly, the original ES-201-3 forms, "Examination Security
Agreement," with all the pre- and post-examination signatures will be provided via email, as
confirmed with the NRC chief examiner on August 7, 2017.
This document contains no regulatory commitments.
Enclosures Contain Operator Examination Material
Withhold from public disclosure until
completion of examination
Enclosure Contains Operator Examination Material
Withhold from public disclosure until
Enclosure 2
completion of examination
Brunswick Steam Electric Plant, Unit Nos. 1 and 2
Renewed Facility Operating License Nos. DPR-71 and DPR-62
Docket Nos. 50-325 and 50-324
Written Examination Performance Analysis Results
(with recommended substantive changes)
TRAINEE EVALUATION AND EXAMINATION
SECURITY
AD-TQ-ALL-04 70
Rev. 0
ATTACHMENT 3
Page 1 of 1
(Information Use)* Exam Item Analysis
Training Program: Initial License Training
Exam Number:
Exam Title: NRC IL T Exam
Exam Date: 08/08/17
Purpose:
Exam Validation D Post Exam Review *
NOTE
Miss Rate, Causal Code, and CAP item are not required when being used for exam
validation.
Disposition shall provide the basis for re-grading (when re-grading is required).
Item#
57
Problem: Students lacked the detail knowledge of when the Rod
Miss Rate
8/14
Out Block would be in alarm.
Causal Code
1
Disposition
CAP#
None required.
Item#
59
Problem: Students lacked the knowledge of the refueling interlocks
Miss Rate
7/14
Causal Code
1
Disposition
CAP#
None required.
Item#
60
Problem: Students lacked the knowledge of when steam is
Miss Rate
6/14
admitted to the HP turbine per the NOTE in the procedure.
Causal Code
1
Disposition
CAP#
None required.
CAUSAL CODES:
1. The question was valid but Examinee knowledge was deficient.
2. The question was valid but either the training or the objectives did not support the required knowledge.
3. The question was correct for one reference but not another.
4. The question was correct but contained psychometric flaws.
5. The question was technically incorrect.
RC-1 determining TEDE while working in a High Airborne Area.
Below is the explanation for step 2 and step 4 of RC-1
Step 2 - Determine internal dose while wearing a respirator.
STANDARD-Internal dose with respirator determined to be O mrem
Explanation:
For step two, internal exposure is assumed to be zero based on using a powered air purifying respirator
which due to positive pressure is assumed to allows no internal exposure.
However, If using AD-RP-ALL-2019, to calculate internal dose it would actually be calculated to be .0521
mrem.
Below is an explanation of how to determine this value.
Given in the stem is a weighted DAC of 50.
IAW attachment 3 step 4 this weighted DAC is the equivalent of all the individual respective nuclide DAC
values.
4.
If performing manual OAC-Hours exposure calculation, then use the following
equation to obtain Weighted DAC for Attachment 3 Step 6 and
Attachment 3 Step 7 _
w
- htdOAC -~
~
~ ~
etg e
- DACa + OACb + OACc + __ _
This weighted DAC of 50 is then used in the following equation from attachment 3 step 7b to calculate
DAC-hours for internal dose.
7.
If calculating values from Attachment 3 Step 4, then perform the following:
a
If respiratory protective equipment is not used, then calculate internal
exposure using the following equation:
DAC- hours= Weighted DAC x Exposure Time hours
b_
If respiratory protective equipment Is used, then calculate Internal
exposure using the followilg equation:
DAC -Hours= [((Weighted DAC)/(Respirator Protection Factor ))
x Exnosure Time with Resoiratorlhrs1
The respirator protection factor is 1000 for all duke PAPRs based on att 1 note 7
Notes*
I. Escape provision ill defmed as a live minute self-contained breathing air supply.
2 Oxygen deficient atmosphere is defined as an atmosphere contammg <19 5'11. ol()'Qen
3. Immediately Dangerous to Life or Health (lOLH) is defined ns any atmosphere. toxic or o.qgen deficient. wtuch poses an immed111te danger to life or
produces Immediate irrever.11ble deb1htating effects on health
4. Nose cups are required for SCBAs used for emergency use when temperature is <32" F
Sa [CNS, MNS, ONS) Delta Sult APF is 2,000
Sb [BNP. HNP, RNP) Dell.3 Suit APF Is 5,000
6 If sparks are present, then use spark arrester ftlters
7 Al Duke Energy approved 3M PAPR head lops have an APF of IOOO.
The exposure time is 25 minutes which is given in the initial conditions.
Therefore the equation is solved as follows:
DAG-Hours= [(50/1 OOO)x25/60
DAG-Hours= .0208
Internal Dose = DAG-Hours x2.5
Internal Dose=.0208 x2.5
Internal dose=.0521 mrem
This internal does of .0521 mrem is -0.
Step 4 - Determine total exposure while wearing a respirator.
STANDARD-Total dose with respirator determined to be 193.8 mrem (Acceptable range is 193. 7
mrem to 195.3 mrem). (see key)
Explanation:
Total dose is the sum of external exposure and internal exposure. This total dose can be solved using
AD-RP-ALL-2019 Att2.
1. External Exposure
If External ExposlJ'e is due to set-up or removing
breathing air equipment
11
I
[
DoseRate xWorkT1me x(ATF)-__ (mrem)] + [ DoseRate xWorkTime x(ATF)-__ (mrem)] * ""(i)(mrem)
(mrem/hr)
(hrs)
(mrem/ hr)
(hrs)
11
2.5* Conversion Factor (mremtDAC-Hour)
1'
Adjusted Time Factor (ATF) = 1.15 (+1 5%) for Air Purifying Respirators (APR) [tight fitting respirators) and 1 (+0%) for PAPRs
APF: Assigned Protection Factor
External exposure is calculated as follows based on the above equation:
Dose rate is given as 465 mrem/hr
Work time is 25 minutes
465x(25/60)x1 =193.7 to 195.3 mrem
Therefore external exposure=193.7 to 195.3 mrem
Internal exposure was calculated above in step 2 as either O or .0521 mrem.
total exposure is (193.7 to 195.3 mrem external dose)+(O to .0521 mrem internal dose)
Therefore total exposure= 193.7 mrem to 195.821 mrem.