ML16340A680
| ML16340A680 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 11/01/1979 |
| From: | Dodds R, Hutson T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML16340A681 | List: |
| References | |
| 50-275-79-23, NUDOCS 7912060065 | |
| Download: ML16340A680 (8) | |
See also: IR 05000275/1979023
Text
U.S.
NUCLEAR REGULATORY COMMISSION
OFFICE
OF
INSPECTION AND ENFORCEMENT
t No
50-275/79-23
Docket No.
Licensee:
50-275
Licensee
Ho
Pacific Gas
and Electric Company
77 Beal e Str eet
San Francisco,
94106
Safeguards
Group
Diablo Canyon Unit 1
Facility l'lame:
Da e S'igned
Diablo Canyon Site,
San Luis Obispo County, California and Corporate Office
Inspection at:
September
27 and October 3-5,
1979
Inspection
Conducted
Inspectors:
'0"
T.
W. Hutson,
Reactor Inspector.
Date Signed
Date Signed
Date Signed
1 7/~
Approved by:
R. T. Dodds, Chief, Reactor Enqineering
Support Section
Reactor Construction
and Engineering
Support
Branch
Summary:
Ins ection durin
eriods of Se tember 27,
1979 and October 3-5
1979
D te Signed
Report
No. 50-
9- 3.
A~Id:
A
t,d
dd
p
I
by
I
I
b "dd
of construction activities including license action
on Bulletin 79-14,
Certificate's of Authorization and observation of general
construction practices
during abplant tour.
The inspection
involved 20 inspector
hours
by one
NRC
inspector.
Results:
Of the three
areas
inspected,
no items of noncompliance
were identified.
RV Form 219 (2)
0
gP
DETAILS
l.
Individuals Contacted
a.
Pacific
Gas
and Electric
Com an
PGSE)
M. N. Norem, Resident Startup
Engineer
- D. A. Rockwell, Resident Electrical
Engineer
S. J. Foat,
gC Engineer
J.
R. Bratton,
QC Engineer
C. Braff, Pipe Support Supervisor
P. Hirschberg,
Mechanical
Engineer
K. Rhodes,
Instrumentation
Supervisor
M. V. Williamson, Licensing Engineer
J . R. Stevenson,
Project Administrative Engineer
R. Breed,
gC Inspector
D. R. Aitken, Inspector
C
J.
W. Snodgrass,
Inspector
B
- Denotes those attending exit interview.
2.
Plant Tour
Upon arrival, the inspector
conducted
a tour of various areas of Unit
1 and
2 to observe
work in progress,
completed work and housekeeping.
The work activities and completed work in the various areas
toured were
examined for compliance with the applicable
codes
and standards.
During
the tour of the Unit 2, 480 Volt Vital Bus
2F room the inspector noted that
above switchgear cubicle 52-2F-33,
several
black non safety related cables
were associated
with and very close to the orange cables of bus
2F .
The inspector inquired if the black cables
ever
become associated
with the cables of another safety related train.
Discussions
with
cognizant licensee
personnel
failed to resolve the question
as the
cable identification of the black cables
could not be seen.
This
item will be examined during
a future inspection.
(50-275/79-23-01)
3.
Seismic Anal sis for As-Built Safet
Related
sosn
S stem
The inspector
examined licensee
actions at the corporate office and
at the Unit 1 site to determine
compliance with the requirements
of
The Design
Review Procedure for work conducted
at the corporate office was reviewed
and found satisfactory.
The
designation
of specific elements
to be examined during the field ver-
ification were determined
by qualified personnel.
Checklists
were also
incorporated into the procedure
to aid the Design Isometric Reviewer
-2-
and the Analysis Reviewer.
PGSE
has obtained
the services of Earthquake
Engineering to conduct the
review of the design isometrics
and determine
and mark the scope of a
particular seismic analysis
on a single design isometric.
There may be
more than
one seismic analysis
associated
with a single design isometric.
The design isometrics
are transmitted
to the field where the verification
of the as-built condition is conducted.
When the marked
up drawings
are received
from the field, Earthquake
Engineering
personnel
compare
the seismic analysis with the marked
up design isometric
and generate
a list of discrepancies
between
the analysis
and the actual as-built
condition of the system.
The list of discrepancies
along with the Analysis
Review Checklist are given to
PG8E seismic analysts
who make the engi-
neering determination of acceptability or if reanalysis
is required.
The Field Verification Procedure for conducting the walkdown of the
system
was examined
and found to incorporate
the elements
to be inspected
and the allowable tolerances.
The records of training lectures
held to
instruct the field personnel
were reviewed.
The lectures
covered the
procedures
in depth
and appeared
to adequately
prepare
the inspectors
to conduct the walkdowns.
In addition, meetings
are held every morning
to discuss
any problems
noted
and answer questions.
Each inspector
was issued
the tools required to perform the
needed
inspections.
The inspector observed
and interviewed two inspectors
conducting
a walk-
down of Chemical
and Volume Control
System Isometric
No. HS-359 Pev.
5
and independently verified applicable inspection elements
on the above
isometric.
The inspectors
appeared
very knowledgeable of the require-
ments
and conducted
the walkdown in accordance
with the procedure.
This bulletin will remain
open pending the review at the corporate office
of the engineering
resolution of nonconforming deviations
found during the
walkdown.
Review of ASME Certificates of Authorization
Due to the length of time since Diablo Canyon construction
commenced,
the requirements
and responsibilities of the
AS~1E code concerning
obtaining of certificates of authorization
and code stamping of items
have
changed significantly.
Also the design of many parts,
components,
appurtenances
and the installation were conducted
in accordance
with ANSI
831.1Property "ANSI code" (as page type) with input value "ANSI</br></br>831.1" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.
Power Piping and 831.7 Nuclear
Power
Piping as the design
was
initiated in the mid 1960's.
k
The inspector
reviewed
a letter of agreement
between
PGSE,
The State
of California, Division of Industrial Safety
and the Hartford Steam
Boiler Company which described
what items would or would not be code
stamped
and what information would be put on the code plate.
At
present
PG8E does not hold and never has held an
ASNE Certificate of
Authorization.
The only two contractors
who performed
code work on
site were Wismer and Becker and Pullman Kellogg, both of whom have or
had
AStlE Certificates of Authorization.
Site specific certificates of author-
ization had been
issued for the work to be performed.
Letters of
extension or renewal of the certificates
were obtained
as required.
The following certificates of authorization were issued for work at
the Diablo Canyon Site.
Wismer and Becker
Number
~Te
~Ex ires
Remarks
N-1461-1
N-1462-1
N-655
N-656
N-657
N-658
N-659
Pullman Kello
NA
NPT
NPT
NA
NPT
NA
NPT
December
July 16,
June
19,
June
19,
June
19,
June
19,
June
19,
31,
1979
1979
Work complete
1976
1976
1976
1976
1976
N-392-2
N-393-2
NPT
NA
October 14,
1980
October 14,
1980
Certificates of Authorization N-1461-1 and N-1462-1 were extended
by
ASME letter of April 16,
1979 until the dates
shown to complete
required work.
Authorizations
N-392-2 and N-393-2 were originally
extended
by
ASl1E letter of !1arch 24,
1976 to expire September
30,
1977.
Pullman Kellogg applied for and received
renewal of the certif-
icates via ASNE letter of November 18,
1977 to expire October 14,
1980.
The scope
and responsibility of the certificate holders
was determined
to be within the limitations and requirements
of the
ASNE code appli-
cable to the certificates
issued.
Exit Interview
At the conclusion of the inspection,
the inspector met with the licen-
see representative
(denoted in Paragraph
1) and summarized
the inspection
purpose,
scope
and findings.
.n