B13401, Proposed Tech Specs Re Surveillance Requirements for Hydrogen Recombiners
| ML19332E835 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 12/01/1989 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML19332E834 | List: |
| References | |
| B13401, NUDOCS 8912130044 | |
| Download: ML19332E835 (4) | |
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Docket No. 50-423 B13401 p..
Millstone Nuclear Power Station, Unit No. 3
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Proposed Revision to Technical Specifications n
Hydrogen Recombiner i
Surveillance Requirements I
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0 December 1989 8912130044 891201 hDR ADOCK 05000423 PDC
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.s. X INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS E*
SECTION MQ1 FIGURE 3.6-1 MAXIMUM ALLOWABLE PRIMARY CONTAINMENT AIR PARTIAL PRESSURE VERSUS SERVICE WATER TEMPERATURE.........
3/4 6-8 Air. Temperature...................................
3/4 6-9 Containment Structural Integrity..................
3/4 6-10 Containment Ventilation System....................
3/4 6-11 3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS Containment Quench Spray System....................
3/4 6-12 Recirculation Spray System.........................
3/4 6-13 Spray Additive System..............................
3/4 6-14 3/4.6.3 CONTAINMENT ISOLATION VALVES.......................
3/4 6-15
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3/4.6.4 COMBUSTIBLE GAS CONTROL Hydrogen Monitors..................................
3/4 6-35 Electric Hydrogen Recombiners......................
3/4 6-36 FIGURE 3.6-2 HYOR0 GEN RECOMBINER ACCEPTANCE CRITERIA FLOW VS.
CONTAINMENT PRESSURE...............................
3/46-36a 3/4.6.5 SUBATM0 SPHERIC PRESSURE CONTROL SYSTEM Steam Jet Air Ejector..............................
3/4 6-37 L
l 3/4.6.6 SECONDARY CONTAINMENT o
Supplementary Leak Collection and Release System...
3/4 6-38 l
L Enclosure Building Integrity.......................
3/4 6-40 Enclosure Building Structural Integrity............
3/4 6-41 3/4.7 PLANT SYSTEMS 3/4.7.1 TURBINE CYCLE Safety Valves...........................................
3/4 7-1 TABLE 3.7-1 MAXIMUM ALLOWABLE POWER RANGE NEUTRON FLUX HIGH SETPOINT WITH INOPERABLE STEAM LINE SAFETY VALVES DURING FOUR LOOP 0PERATION.........................
3/4 7-2 TABLE 3.7-2 MAXIMUM ALLOWABLE POWER RANGE NEUTRON FLUX HIGH SETPOINT WITH INOPERABLE STEAM LINE SAFETY VALVES THREE LOOP 0PERATION..............................
3/4 7-2 MILLSTONE - UNIT 3 ix Amendment No. 28
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-CONTAINMENT SYSTEMS p
ELECTRIC HYDROGEN RECOMBINERS LIMITING CONDITION FOR OPERATION 3.6.4.2 - Two independent Hydrogen Recombiner Systems shall be OPERABLE.
APPLICABILITY: MODES 1-and 2.
ACTION:-
-With one Hydrogen Recombiner System inoperable,' restore the inoperable. system to OPERABLE status within 30 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
SVRVEILLANCE RE0VIREMENTS 4.6.4.2 Each Hydrogen Recombiner System shall be demonstrated OPERABLE:
a.
At least once per 6 months by verifying during a Hydrogen Recombiner System functional test-that the minimum reaction chamber gas temper-ature increases to greater than or equal to 700*F within 90 minutes and is maintained for at least 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and that the purge blower operates for 15 minutes.
b.
= At least once per 18 months by:
1)
Performing a CHANNEL-CALIBRATION of all recombiner instrumenta-tion and control circuits, 2)
Verifying through a visual examination that there is no evi-dence of abnormal conditions within the recombiner enclosure (i.e., loose wiring or structural connections, deposits of foreign materials, etc.),
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Verifying the integrity of all heater electrical circuits by i
performing a resistance to ground test following the above required-functional test. The resistance to ground for any heater phase shall be greater than 10,000 ohms, and l
4)
Verifying during a recombiner system functional test using con-l tainment atmospheric air at a flow rate of greater than or equal to that indicated on Figure 3.6-2, that the gas tempera-ture increases to greater than or equal to 1100*F within 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> and is maintained for at least 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
1 MILLSTONE - UNIT 3 3/4 6-36 I
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-o 13 ACCEPTABLE 10 r
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8 30 40 50 60 70 80 FLOW (scim)
FIGURE 3.6-2 HYDROGENRECOPEINER ACCEPTANCECRITERIA FLOW VS CONTAINMENT PRESSURE 3/4 6-36a MILLSTONE UNIT 3
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