ML20079F176
| ML20079F176 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 01/13/1984 |
| From: | DUQUESNE LIGHT CO. |
| To: | |
| Shared Package | |
| ML20079F175 | List: |
| References | |
| NUDOCS 8401180155 | |
| Download: ML20079F176 (35) | |
Text
l -
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j Separation Criteria 1 at l
BVPS-2 -
~
Part I: Overview and Implementation .
Program Part H: Comparison of Criteria
[ Part HI: ' Separation Achievement Concepts ms a
! 5I' l Part N: Resolution Measures ;8 is i
Part Y: Related Issues i'd<
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C E H
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An Overview of BVPS-2 Separation i
l i
- 1)
Prior to the April-May,1983 meetings with j the NRC, BV-2 separation provisions were ,
l consistent with the PSAR document which in summary described:
l l = separation of redundant safety circuits is by following different routes whenever practical; and by meeting l specified vertical and horizontal separation distances i
- when in the same area .
- Added protection (increased spatial separation or barriers in potential hazard areas) i
- 2) Subsequent to these April May meetings, l
BV-2 is currently in the process of l
l implementing the separation requirements of IEEE Std 384-1974, as augmented by
~
R.G.1.75, Rev. 2 .
I'l '
l i
I l Program for implementation of -
IEEE Standard 384-1974 as Augmented by R.G.1.75, Rev. 2 i
i Beaver Valley Power Station - Unit 2 Duquesne Light Company .
Pittsburgh, Pennsylvania
- i. .
- - - w u.- - . _ _ _ ____ ___
i.
i 1
l, Program Outline i,
I Section Title 1 Objectives 4
l 2 Organization 3 Methods 4
l 4 Implementation 5 Training 6 Control .
7 Records Schedule 8
, ,. .v..- , - - _ _ _ _ . .- _
t i .
1 .
i Section 1 Objectives i a To implement the separation requirements of IEEE Std 384-1974 and R.G.1.75, Rev. 2 l
- l.
- To ensure necessary organizational interactions i
l
- To maintain internal uniformity with all applicable documents l
l
- To identify preventative actions that will eliminate the future occurrences of less than acceptable separation distances, where possible, and implement them ,
l
- To provide an early identification and assemblance of the I required resources to effect the program
. To minimize the impact of the "lEEE 384" transiflon on construction and system turnover activities ;
- To coordinate design modifications with Appendix R and fire stops and seals design features l
- To maintain current construction schedule l .
l l
Section 2 Organization 1
i SWEC DLC l LIC DLC LIC l 8 l .
e
! SWEC & DLC Team. Leaders l SWEC DLC BVPS-2 .,____j i
(BVPS-2 Task Force) Task Force _
i
!i i
c i
SEG SEG -Proi. Proj. Site
! Struc. Proi. '
i Elec. Elec. Struc. Elec.. Elec. ~1 e i _ _ _ _ _ _t_ _ _ _ _ , _. _. _. __ _. __ _t Constr. SECO i Rep.
SQC r-- Constr. '
i L _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ]i l
j 83-35,847A
)
i .. . _ _. _ _ ___ _
4 i LEGEND i
y, l DLC Duquesne Light Company .
lI 1
SWEC Stone & Webster Engineering Corp.
l- SECO Sargent Electric Company -.
! LIC Licensing .
Constr Construction Site Engineering Group i
SEG SQC Site Quality Control 84-36,161
Sectisn 3 .
METHODS
= Classify cases where spatial separation is less than IEEE Std 384-1974 requirements ;
- Implement a documentation and tracking system for: -
- a. Cable Tray Cable Tray .
- b. Conduit Conduit l
- c. Conduit - Trpy l d. Cables in free space (CIFS)
- Perform plant walkdowns and document results
- Group cases of less than minimum spatial separations in types and corresponding design features, consistent with IEEE-384.
- Group cases of less than minimum separation within panels, switchgear, etc. and specify design modifications
- Determine test and analyses scope -
l
- Evaluate recommendations resulting from a review of work '
j practices l
- Evaluate potantial hazard areas I a. Fire hazard analysis
- b. Flood protection ,
- c. Equipment qualification
- d. Pipe whip and jet Impingement ,
l
- Program feedback i -
i i Section 4 .
l l Implementation l
- Revise and maintain current,2BVM-41 Electrical Cable and j Raceway Criteria; and,2BVS-931 The Electrical Installation l
Specification to include:
I a. Details of separation design provisions. The preferred order of choices Is l ,
- 1) Spallel separation i 2) Tray coverstbottoms l 3) Enclosed raceway l 4) Barriers j 6) Protective wrapsicoverings
- 6) Analysis endler tests
- b. Modified installstion practices to minimize occurrences of reduced separations l
!
- Revise procedures / drawings to implement the design l modifications j = Modify wiring diagrams as required for separation within
- panels l
- Review ampacity impacts, if any. Coordinate design changes with review of supports
- Initiate rework as required
- Procureifabricate barriers, tray covers, protective materials, wraps, etc.
83-35,049
I i-I
! Implementation Logic Furnish Design Criteria j to Structural l Special p-- ,,
RVWExi7] If Compatible e
- Eng Revise , Dwas & l Inter W/ Exist go,,,gg,,;,, g RVW l2BVM-41 j Ident if l Discipline -Construct l Exist l Sketch Division 2BVM-41 l RVW RVW or Speciell of Dwes I cInstall q
- , A Text s..
_ _ c ^
Not Compatible
^ RVW IFurnish I issue l Per issue R.I.
j Effects y
l DSN 2BVM-41 I Dwas
! on Cable ~l l Rev to l Environment l to Criteria Elect DSN !
Dwgs I Constr l.
I _ _
_ -_g l p _ _-l !
l
[RVS 2BVS-931 SQC SEG RVW If "Fix" g l fo Describe RVW Per
- l Barriers A Exist & l NAD's RI's Determine 2BVS-931.' !
l l g Establish E l Criterie Future f "Fix" Per Install 2BVS-931 SEG f
Dispo.sition' ,
Not Covered l Per or Special l A Revise ~
on Boston 2BVS-931
' l RE's l Dwas as g Required L _ -. _ _ _ _ _ -._ -
S P e ci al j
- C3 -3 5,Q50
__ - _____d
I' i Section 5 i
l Training .
!i h:
l ;-
- Determine Training Requirements
!: a) Scope of training l b) Frequency ll c) Who - SECO i' '
SQC l SWEC, Boston & SEG Design, Construction l'
- Prepare training packages for instruction (includes work l-practice review results) 1
- Monitor the implementation of training program elements l
= Integrate the results of the workshop practices review I
O es-33,eri
- j. -
Section 6 Control Systems .
e Components of the System a) Tracking Documents
- 1. Cable Separallon Status Report (Modified CSSR)
- 2. Request for Information I
b) Drawings c) Project Specific Procedures (includes Site Procedures)
- 1. Field Construction Procedures (FCP 420,421,430,431,440...)
- 2. Ir.spection Procedures (IP 8.33, 8.34, 8.41, 0.52 ...) *
- 3. BVPS.2 Manus.1 Procedures e '
2BVM.41
- 4. BVPS.2 Specifications f a 28VS 931, Installation
- 5. SECO Procedures 1
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(, N . -
Section 7 RECORDS
- Raceway Tlckets
- Cable Pull Tickets
- Engineering & Design Coordination Reports (E&DCR's)
- Nonconformance and Dispositions (N&D's)
- Records Management Program
- Specifications / Purchase Orders e . Qualification Reports
- Raceway Status Record .
- Electrical Cable Schedule Information System (ECSIS)
- Cable Separation Status Report
- Test Reports / Analyses -
~~
a .
i 4
. ~
Section 8 l Schedule l
- Level 1 Netw6rk (Implementation Schedule for R.G.1.75) l .
t
- Level 2,3 Networks, detalling the following:
a) The Design Group effort
' b) The Installation Process f
c) The evaluation of potential hazard areas, addressing fire, jet j Impingement, pipe whip, flooding, etc. - .
',l I
d) Fire togets for specified barrier configurallons, if required l
i
- Schedules will be coordinated with Appendix R and fire stop l
and seals installation activities Note: For Detailed Schedule see Attachment 2
d n '
a i a
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1 l
i i
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- FSAR 1 PSAR IEEE-384-1974 j Cond - Cond 1' Design 1' Design
- 1" Min. 1" Min.
l Tray Tray NM M CSA GPLT
! C-C 30"V 48" 3'O V 5'0-V
~
I
! 12"H V&H 1'O H 3'0-H j -
C - NC Not i
Addressed Tray - Cond Not Addressed i
CIFS to Not Addressed t TraylCond . - - .
i i;
CIFSICIFS Not Addressed NC Non Color C Color ,
NM Non Missile f M - Missile
~
CSA . Cable Spreading Area GPLT - General Plant CIFS - Cables in Free Space NOTES TO TABLE
- 1. Separation status recorded for cable cable separations between 5'0" and O' 4".
- 2. Vertical tray separation measured from bottom of top tray to bottom of bottom tray (tray depth 5") per PSAR,2BVM 41 and 2BVS 931. IEEE Standard 3841974 measures from ,
bottom of top tray to top of bottom tray.
c
Current Status of BVPS-Unit 2 Relative to IEEE-384-1974, R.G.1.75, Rev. 2 Physical Status: From least to most, the raceway Installations that conform to the spatial requirements of IEEE-384,* 'as presently designed or Installed, by building: '
Areas of Areas of l Most Compilance Least Compilance l
I
=
Control Bldg. Reactor Cont. Service Bldg. Safeguards Bldg. .
Auxillary Bldg. Diesel Generator Bldg. ,
Cable Tunnel Cable VaultlRod Primary intake Structure Control I
l Engineering Software Development Status:
l 1. FSAR amended to Indicate commhment to IEEE-384-1974 j 2. 2BVM-41 and 2BVS-931 revised and issued to conform with FSAR commitments. Both documents will be reissued to include design details to Implement and control the design and construction process.
l l 3. Engineering sketches are presently being developed, cr are under review, j to resolve most of the raceway reduced spatial separation. The sketches incorporate the use of tray covers or steel barriers, and will be i
incprporated in the documents described in 2, above, after approval. I 1
i
- Most reduced spatial separations involve safety to nonsafety raceways.
l
I Part II Preferred Order of Separation Design * ,
e .
. o 1 Spatial Separation 5 1 _
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I Part H Preferred Order Of !
. Separation Design i
3 Enclosure.s. - - - - z:
- - ,A,D...ivision u \
1" Min. -
Non-lE -
O 'A' Division ,
i
, :: 1" Min.
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_ . _ .- _. ___... .. m . , .,_a ..m .m....m -
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Preferred Order of Separation Design 5 Protective Wraps
'#' Di i iv s on .
___ j,, g;,
or N .
3' Min lf ,, ,l[~1sg rotective P Wrap
'B' Division " T~~ , '
'B' Division Conduit .
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Betwee'n 3' to 1" ll
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l _.
i Port ll . :
Examples
_ _ iv .
C NonIE ,
- D.iv.A O C Non1H 11" Nom.inal t' C NonIE
- e--_ ,NonIE
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Cable Spreading Area -
e l
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a n 41" Nominal 27" Nominal 41" Nominal v v _.
Non1E y "
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\\ \\ \ \ \ \ \ \ \ \ \ \ \ \ \
Cable Spreading Area ,
9 h
- - - - - . , , - . - . _ . - , - . - . . . - , . . - . - - - - . , _ _ _ , - . _ - - . . . _ , - - . . _ . - - - - _ - . . _ . _ - _ _ _ F
j.-
i Process l Work Practice Review Results in of implementation 1
e Extend conduit to minimize the occurrence of less than minimum separation distances l
with raceways of the opposite color or with
! neutral raceways '
l e Specify methods for exiting raceways with l
cable to limit proximity to nearby l redundant cable trays or circuits l
f e Review present routing practices l ,
e i
e y - --. _,-.-- - - _m. - _ _ _ _
l Preliminary Results of ,
Work Practice Review Graphic-1 2a [ Div A 2 [ NonIE Troy Separation is not Addressed A
h [ Div A
[ NonIE g ]
Tray separation is Not Addressed Recommended Practice m/
I e
.wr,
Preliminary Results of i Work Practice Review Graphic-2 W - _
.3 ,
Div A 3 r Wall i Y
Troy Separation Div A 3 is Not Y .
g Addressed Non1E] [ -
l NonIE3 [
._ -Q T
Wall Div A 3 [
Troy Separation Div A L is Not
^O" ,
g Addressed Non1E3 5 Non1E3 [
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l 1
Part IR(Cont.)
l 1
i Cable Separation Status Report Group Types
\.
i '
i i
Cables in Free Space (CIFS) l CIFS - CIFS 1
i i
CIFS -
Raceway 1
CIFS -
I Other (sleeves, Junction box, etc.)
l 83-35,878 i
\
l l Part M -
)
i, Resolutions of cases where less than minimum spatial distances.
occur and specified design modifications
j .
. Part Dr
! BVPS-2: Program to Resolve Instances of Reduced Spatial Separations Protective Measures i
i e AllbeF.SAR to utill2eddescribed measures (list of 7 Items) are expected
- Steel tray covers and/or bottoms
[
L - Ventilated steel covers (power trays)
- Thermal barrier coatings
! - Thermalinsulating material
- Steel barriers l - Thermal cable trays barriers, ceparating non safety and Class 1E
- Thermal barriers, separating Class 1E from redundant Class 1E cable trays No other protective measures are planned l
i i - - _ - _ - _ , _ _ _ __ --_- -
{..-
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l Part IE Tests and / or Analysis Representative testing, and subsequent l analysis,.will be used where the previously described methods cannot be applied (i.e.
-l spatial separation, tray covers and/or barriers).
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" Abandoned" Cable We do not abandon cables .
Generalized topic of redesign of cable or
- raceway to attain minimum separation requirements
[
a) separation It is a method or choice to achieve physical i
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1 Features of this method i
a) Redesign of cable or raceway will include redesignation of new status ,
b) Physical routing change will be effected for the existing cable or raceway c) All cable and raceway retain identification d) All cable and raceway remain in the design basis e) Procedures to be developed to address spared cables (terminate, inspect etc.)
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