ML19338D963
| ML19338D963 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 07/14/1980 |
| From: | Ebneter S, Finkel A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19338D959 | List: |
| References | |
| 50-317-80-10, 50-318-80-09, IEB-79-01B, IEB-79-1B, NUDOCS 8009240265 | |
| Download: ML19338D963 (16) | |
See also: IR 05000317/1980010
Text
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U.S. NUCLEAR REGULATORY COMMISSION
OFFICE OF INSPECTION AND ENFORCEMENT
Region I
50-317/80-10
Report No.
50-318/80-09
50-317
Docket No.
50-318
License No.
OPR-69 ~
Priority
Category
C
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Licensee:
Baltimore Gas and Electric * Company
P. O. Box 1475
Baltimore Maryland 21203
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Facility Name:
Calvert Cliffs Nuclear-Power Plant Units 1 and 2
Inspection at:
Baltimore, Maryland
Inspection conducted: June 18-20,1980
Inspectors:
8I
7 //[#
A. E. Finkel', Reactor Inspector
V pte' signed
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date signed
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date signed
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Approved by:
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W1
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S.
D'. Ebneter, Chief, Engineering Support
Aat'e' signed
)
Section #2, RC&ES Branch
Inspection Summary:
Inspection on June 18-20.1980 (Report No. 50-317/80-10 ana 50-318/80-09)
Areas Inspected:
Routine, announced inspection of qualification data for the
electrical equipment inside containment associated with the Chemical and Volume
Control System, Condensate and Feed Water System, and Containment Air, Recirculation
and Cooling System as defined in' the licensee's response to IE Bulletin 79-01B
dated May 23, 1980.
The inspection involved 21 hours2.430556e-4 days <br />0.00583 hours <br />3.472222e-5 weeks <br />7.9905e-6 months <br /> on site by one Regional
based NRC inspector.
Results:
No items of noncompliance or deviation were identified.
Region I Form -12
-(Rev. April _77).
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DETAILS
1.
Persons contacted
Baltimore Gas and Electric Company
- R. F. Ash, Chief Nuclear Engineer
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- D. R. Holland, Supervisor Engineering
- R. H. Kent, Manager Electric Engineering Department
- *A. Marion, Senior Engineering Technician
- S. A. Rittenhouse, Chief Electrical Engineer
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- K. H. Sebra, Principai Engineer
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- L. A. Sundquist, Supervisor Engineering Quality Assurance
- * denotes those present at the exit interview.
2.
IE Bulletin 79-018 - Qualification Data verification
The inspector on June 18-20, 1980 performed a verification inspection of
the qualification documentation of the components of the following listed
systems.
The inspection was performed in accordance with the inspection
instructions entitled " Inspection Requirements for Verifying Reactor
Licensee Responses to IE Bulletin No.79-01B."
3.
Chemical Volume Control System
The i1spector reviewed the qualification data associated with the
following in containment solenoid valves:
Plant ID Number
M_fg
Type _
ISV517
ASCO
NP8316A75E
ISV518
ASCO
WPHTX8320A21V
ISV519
ASCO
WPHTX8320A21V
ISV506
ASCO
WPHTV8320A21V
ISV515
ASCO
WPHTX8320A21V
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ISV516
ASCO
WPHTX8320A21V
a.
ISV517 Solenoid Valve - ASCO No. NP8316A75E
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-The ASCO Solenoid Valve met the following requirements as documented
in the listed documentation ASCO AQS-21678/TR Revision A, Isomedix
Inc., report covering August 1977 through January 1978, and ASCO
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Certificate of.Conformance dated November 16, 1979.
See Table 1 A.
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The above reference reports identified seven -(7) samples selected to
represent six. generic families of solenoid valves. The selected
samples were. subjected to sequential exposure of elevated . temperature, .
radiation, wear aging, seismic simulation, vibration, accident radiation,
and a loss.of coolant accident (LOCA) simulation which lasted 30 days.
The solenoid valves were energized and de-energized at high and low
presst:ce/ temperature during the test.phasa (except radiation) and
'leakt.ge from the solenoid valves was monitored.
The following. test data was reviewed by the inspector during the
review of the above referenced licensee reports:
Radiation - 50X106 rads
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Accident' Radiation - Additional accumulated dose of 150X10 at a
dose rate of. less than 1 megarad/ hour was given to this ' family.
LOCA - The licensee used as a guide IEEE 323-1974 Figure lA. The
curve in Figure IA-1 represents the data points that the test
conformed to. The times are approximate with no intent to
reproduce the actual curve.
Thermal Aging - 2680F for 12 days.
Cycled (de-energized and
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energized every 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />). The test simulatei a 4.4 year life @
1400F (10% margin added to the 4 year design life).
.
Test sample No. 8 malfunctioned after 8 days. The valve' developed
excMsive seat leakage both in the energized /de-energized states.
At the'end of the test it was determined that the valve had dirt
in the system. -It appeared that the iron pipe used in the cylinder
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port as . piping and a. piece of iron pipe used to-simulate an
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accumulator introduced the dirt into this system.
Wear Aging - The solenoid valve samples were electrically cycled
.40,000 times at maximum operating pressure' differential.
Baseline
and functional' tests conducted during this test _ phase of the ' test
indicates that all of the seven samples which comprise the generic
families appear to pass' the functional requirements as defined in
~ paragraphs 9.4.2.3.4 and 9.4.2.4.2 and Figure 9.1 of ASCO Quali-
fication Specification AOS-21678 Revision B Appendix A.
- The'following_ items are under evaluation by the licensee:
Autmoatic Switch Company letter _of.May 2,1980 to the licensee
states for item 10NP8316A75V that the energized and de-energized
times:is 125 msec. . Test Report No.'AQS21678/TR Revision A does
not define the time requirements of the item.
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Insulation resistance measurements were recorde'd before thermal
-agire
'9t not after thisitest. The data sheets did not record
an, ,crther results for this test.
Thermal aging of this . item is based on a four year life, with
replacement of coils _and elastomeric components.
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ISV518,19,15,16 and 506 Solenoid Valves ASCO No. WPHTX832021V
The ISV series of solenoid valves' part no. WPHTX832021V appears to not
,
-be qualified in the area of. radiation.
(Reference Table 1B). The
value of 10E+6 Rads.in the qualification eclumn indicates that the
data in the qualification report did not comply with the requirement
of 100E+6 Rads.
Simulated LOCA test of solenoid valves and limit switch by Nor tod
Engineering Department, itasoneilan International, Inc., dated April
19, 1973 identifies the following items and environments.
ASCO Model WPHTX8320A21V
S/N 96578A
ASCO Model WPHTX8300BslYF S/N 96577A
.
Namco fiodel No. SL3
Namco Model No. EA-740-500-00
In reviewing the qualification documentation associated witu the above
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. components the inspector identified the following areas that ceauire
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continued licensee action.
Pressure and Temperature curves are required to support analysis -
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Eastern Controls Report.
Test duration needs clarification.
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. Verification by serial number that components were subjected to a
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synergestic test programmed to be verified.
The above items are under evaluation by the licensee.
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4.
Compressed Air System
The solenoid valve ISV2085, ASCO part no. NP8320A195V meets the same
requirements as listed in Table IA of the Chemical and Volume Control
System.
5.
Condensate and Feed Water System
The components for this system were level transmitters manufactured by
Fischer and Porter part no.13D2495KBAABCB. The ID numbers for the com-
ponents are identified in Table IC.
The inspector reviewed the following test reports associated with the type
testing of this transmitter design,
a.
Ameron Report No. 1550a dated March 23, 1972
Fischer and Porter letter of March 6,1975 stated that the use of
Amercoat 66 paint is used on cast iron bases and covers of their
generic family of transmitters.
The Ameron test report no. 1550a_ qualified their Amercoat 66 paint
over cast iron to the following requirem9nts:
Temperature - 340 F
Pressure - 100psfg
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Radiation - 6.0X10 R
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Chemical Solution - Immersed
b.
Fischerand Porter Report 2204-51-B-006 dated December 1968
Fischer and Porter tested their generi: designs to the following
environments:
0
320 F = 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />
Temperature
29 F = 1.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br />
22 F = 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br />
150 F = post 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br />
PSIA
90 = 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />
60 = 1.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br />
20 = 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br />
Specific components tested to the above environment were as follows:
10B2491
10B2495
13D2493
10B2494
10B2496
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.The above components were electronic differential pressure transmitters
~ (Modified as follows -l sealing and high temperature electronic
modified.
components with Amercoat'66 used on the external surfaces.)
Fischer
and. Porter informed the licensee that the 13D2495 component used at'
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the Calvert Cliffs site are the same as-the 1302493 component that was
.qualifled..
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Franklin Institute Report F-C2815 dated May 1970 Entitled
" Qualification Tests of Differential Pressure Transmitter Under
Nuclear Irradiation"
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The object of this' test was toiverify proper function of transmitters
when subjected to irradiation from a Co-60 source.
Three electronic force balance transmitter units consisting of (1) an
oscillator-amplifier module, (2) a detector coil assembly, and (3) a
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force motor. -These three transmitter types are used on F&P pressure
transmitter modules 10B2490, 50EP1000, 50EN1000, and 50ER1000.
The
measuring elements were not tested as part of-this test.
The three electronic force balance transmitters were exposed to a
Cobalt 60 irradiation as follows:
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Unit-1
53 hrs
accumulated dose of 5.7X106
- Unit 2
48 hrs
accumulated dose of 4.2X10
Unit 3
53 hrs
accumulated dose of 2.5X106
- Unit 2 (a detector coil assembly) was removed from the test after 48.
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hours and a complete pressure transmitter Model 1082495 with top cover
removed was irradiated'with the above source for 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> for an accumulated
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dose of 0.85 megarads. Thisgevel'ofirradiationdoesnotmeetthe
licensee requirements of 1X10 as required by their qualification
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requirement.
The FIRL report of May 1970 F-C2815 does not reference the serial
numbers of the transmitters tested and the F&P report 2204-51-B-006
dated December 1968 do not identify the serial numbers of the component
tested.. The licensee is to verify that the components tested in the
above' referenced reports are of the same serial number.
The licensee
also is investigating why the qualification test of the 13D2495 level
transmitter did not comply with the specification requirements.
Reference Table IC.
6.
Containment ~ Air Recirculation and Cooling System
. Joy, manufacturer of the containment tc - used a 480 Volt 75 HP Reliance
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motor part No. X324356A6W and a 480 -Volt 125 HP Reliance motor part No.
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X323727A1AW as the fan power source. The containment fan component was
qualified to the requirement-as listed in ible ID. The inspector questions
the-American Air Filter Co. test report dated April 7,1973 in the area of
motor cycles'and-synergistic testing.
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Motor Cycles - The qualification specification Bechtel No. 6750-M'-204'
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and Technical File #6750-1520 Form CC-100 Category. III for motor.
. during LOCA conditions requires that 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> cycles be required during-
the test, but- the. test was reduced to 3 to 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> per cycle.
During
a site' review of the qualification data Item'159 in Audit Action
Scheduie of Licensee. dated August 1975 identified this as an unresolved
. item by the NRC.
The licensee closed this item 159, by the following statement:"the 12
hour per cycle was in error and that 3 to 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> per cycle was. all
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that was required.". Reference FSAR Sections 6.5.4.f and 6.5.3.c, also
Section 14.16.. The licensee is required to provide the justification.
for the change approval,
b.
Synergistic testing and the environments ~of Table ID are to be verified
by the licensee.
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Continental Wire and Cable Company
The Continental Wire and Cable Company qualified the following type of
cables to .the environment identified in Table IE.
a.
Cable A:- 7 conductor #12 (7) copper, CC-ll5 silicone rubber insulation,
glass braid over silicone, glass finished with a flame' and abrasion
resistant finish CC-1233, mylar binder tape, overall asbestos braid,
asbestos finished with CC-ll20 flame and abrasion resistant finish,
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Cable- B'_- 2_ conductor #16 (7)' copper, CC-2115 silicone' rubber insulation,
glass braid over silicone, glass braid finished with a flame and
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abrasion resistant ~ finish CC-1233, 2 conductor cabled with impregnated
asbestos fillers, mylar binder tape, overall asbestos braid, asbestos
finished with CC-1120 flame and heat resistant finish.
The qualification of these cables is documented in Franklin Institute
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Research Laboratories (FIRL) report F-C2935 entitled " Test of Electrical
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r 61es Under Simulated Post-Accident Reactor Containment Service,"
cated October 1970. This report is considered to be proprietary by the
vendor.-
Areas-that require clarification by the licensee are as follows:
1 Radiation
As identified in. Table IE the' radiation requirement is
100E+6 while the cable was tested 'to 10E+6.
Reference Industrial
Reactor Laboratories, .Inc. letter dated October 7,1970.
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-Chemical Spray' . Table IE requires a chemical' spray of 1.1% B/A.
FIRL
report F-C2935 dated October 1970 does not identify any chemical spray
test.
Both of the above items are being evaluated by the licensee.
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Anaconda Wire and Cable Co.
The following samples of Anaconda cable were qualified as identified-in the
requirements of Table IF.
Sample 1
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7 Conductor cable, No.14AWG
7 strand Anaconda; ME299
- Insulation. Individual conductors MH8100 Conductor
- Covering and.fiH8100 Belt overall.
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Sample 2 -
. Power Cable Single conductor
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AWG No. 7 wire size stranded, ME299 Insulation,
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HH8100 Belt.
The qualification of the above samples was performed by FIRL and documented
in~ their report F-C2525 dated October 1969.
The qualification program
included irradiation of'the samples with a Cobalt 60 source, a steam and
chemical spray environment and testing the insulation of the samples.at
various points in the test cycle.
During the autoclave steam test, Table
2F, the test samples had 480V applied.
Radi2 tion dose rate for the two
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sample cables was 490 MRAD from a Cobalt 60 source.
The % of B/A as listed in Table IF has to be verified by the licensee.
9.
, Licensee Event Report (LER)
As' defined in item 6 of IE Bulletin 79-01B, "the licensee is required to
submit ar. LER for any Class IE electrical equipment item which has been
determined as not being capable of meeting environmental qualification
requirements for service intended." The components identified in this
report as being investigated or to be verified by the licensee will be
required to meet item 6 of IE Bulletin 79-01B if the information in the
,
qualification _ documentation can not be verified.
10.
Safety Eveluation Report
The acceptability of qualification documentation identif'.d in this report
will be documented in the Safety Evaluation Report (SER) that is to be
written-for this' licensee. -The SER is~ planned to be issued for this site
by February 1981.
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Exit Interview
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At the conclusion of the inspection on June 20, 1980, a meeting was held at
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the Baltimore, Maryland corporate office with representatives of the licensee.
Attendaes at this meeting included personnel whose names are indicated by
notation.(*) in paragraph'l. The inspector summarized the results of the
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inspection as described-in this report.
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Equipment
Enviroment
Qualification
Description
Parameter
Requirements
Qualifiestion
Methods
Operating Time
NA
NA
0
U
ISV517
Temperature
276 F
280 F
Sequential Test
NP8316A75E
Pressure (psig)
50
70
Humidity (%)
100
100
Chemical Spray
1.1% B/A
0.3% B/A
Radiation
100E+6
150E+6
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Aging
4.4 years
Uperating
Requirements:
Cold Shutdown
ASCO Solenoid Valve ISV517
Table IA
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3%'flsopst &
'Y slG-
wto*FlltoNV
no*Fl7cpnc.
2Wfl70fu&
asn'fllCl'H&
20o'fl i*N'*q
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3 Nr4
Skig
llHis
4 day 3
Soh3
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ASCO Solenoid Valve 1SV517
TEMPERATURE / PRESSURE CURVE
FIGURE IA-I
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Equipment
Enviroment
Qualification
Description
Parameter
Requirements
Qualification
Methods
ISV518,519,
0parating Time
NA
NA
Synergistic Test
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515,516 & 506
Temperature
276 F
310 F
Pressure (psig)
50
65
Humidity (%)
100
w/s
Chemical Spray
1.1% B/A
6% B/A
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Radiation
1rJE+6
10E+6
Aging
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Operating
Requirements:
LOCA, HELB, Cold Shutdown 1SV518
1SV519
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LOCA/HELB
ISV515
LOCA/HELB
ISV516
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LOCA/HELB
ISV506
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ASCO Solenoid Valves Qualification Data
Table IB
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Equipment
Environment
Qualification
Description
Parameter
Requirements
Qualification
Methods
ID No.
Operating Time
NA
NA
ILTill3A,B C,0
ILT1123A,B,C,D Temperature
276 F
320 F
Sequential Test
Pressure (psig)
50
90
Humidity (%)
100
100
Chemical Spray
1.1% B/A
NA
Radiation
100E+6
0.82E+6
Aging
Operating
Requirements:
During LOCA and Hot Standby
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Fischer and Porter Level Transmitters
Qualification Data
Table IC
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Equipment
Environment
Qualification
Description ~
'osrameter
Requi rements
Qualification
Methods
ID IMB105,102 ' Operating Time
NA
NA
& 405-75HP
480 volt motor Temperature
276 F
300 F
Reliance
Electric Co.
Pressure (psig)
50
80
Part No.
X324356A6AW
Humidity (%)
-100
100
Chemical Spray
1.1% B/A
Caustic
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Radiation
100E+6
10E+8
Aging
Operating
Requirements:
LOCA, Hot Standby, Cold Shutdown
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Joy Containnent Fan Motor
Oualification Data
Table ID
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Equipment
Enviroment
Qualification
.
Description
Parameter
Requirements
Qualification
Methods
Operating Time
NA
NA
Caole CBLXXX
Temperature
276 F
340 F
Sequential Test
Continental
Pressure (psig)
50
100
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Humidity (%)
100
100
Chemical Spray
1.1% B/A
B/A
Radiation
100E+6
10E+6
Aging
Operating
Requirements: During LOCA, HELB, Hot Standby and Cold Shutdown
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Continental llire/ Cable
Qualification Data
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Qualification
Equipment
Enviroment
_
Qualification
Methods
Description
Parameter
Requirements
Anaconda:
Operating Time
NA
NA
Cable sizes,
0
U
Nos. 14 and
Temperature
276 F
346 F
Sequential Test
7 AWG
Pressure (psig)
50
113
.
Humidity (%)
100
w/s
Chemical Spray
1.1% B/A
B/A
Radiation
100E+6
200E+6
Aging
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Operating
Requirement:
During LOCA, HELB., Hot Standby, Cold Shutdown
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Anaconda Cable Oualification Data
Table IF
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~ Autoclave Steam Test of Power and Control,
Cables Irradiated to 24 MRAD
Autclave
Current in
Current in
- Total
Environment
Pairfof Conductors
Cable.of
Elapsed Time
Pressure Temp
Sample.1
Sample 2
(Min).
(psig)
(OF)
-(Amps)
'(Amps)
Remarks
0
0
80
37.7
5.0
5
14.0-
230
37.5
5.0
10
55.0
288
37.4
5.0
Boric Ac'id
Spray Started
20
50.0
294
36.6
4.5
30
50.0
295
36.4
4.5
,
60
49.0
296
36.0
4.4
120
49.8
296
35.0
4.3
1
125
39.6
283
Steam & Boric Acid'
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140
29.0
272
35.6
4.5
160
2.0
257
36.0
4.5
180
0
248
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Anaconda Cable Test Data
Table 2F .
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