ML17251A491
| ML17251A491 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 05/09/1989 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17251A489 | List: |
| References | |
| NUDOCS 8905240001 | |
| Download: ML17251A491 (14) | |
Text
3.4 A licabilit Applies to the operating status of turbine cycle.
To define conditions of the turbine steam-relieving capacity.
Auxiliary Feedwater System and. Service Water System operation is necessary to ensure the capability to remove decay heat from the core.
The Standby Auxiliary Feedwater System provides additional assurance of capability to remove decay heat from the core should the Auxiliary Feedwater System be unavailable.
3.4.1 MAIN STEAM SAFETY VALVES S ecification Except during testing of the main steam safety valves, with the RCS temperature at or above 350'F, a minimum turbine cycle code approved.
steam relieving capability of eight (8) main steam safety valves shall be available.
Action With one or more main steam code safety valves inoperable, restore the inoperable valve(s) to operable status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or be in hot shutdown within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and at an RCS temperature less than 350'F within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
3.4.2 AUZILIARYFEEDWATER 3.4.2.1 MOTOR DRIVEN AUZILIARYFEEDWATER SUPPLY S ecification With the RCS temperature at or above 350 F, both motor driven auxiliary feedwater pumps must be
- operable, each with an operable discharge flow path to its respective steam generator.
Action 0
- a. With one motor driven auxiliary feedwater pump or discharge flow path inoperable, satisfy the requirements of 3.4.2.2.c. If the pump or flow path is not operable within 7 days, submit a Special Report within an additional 30 days in accordance with Specification 6.9.2 outlining the cause of inoperability and plans for restoring the pump or flow path to operable status.
- b. With both motor driven auxiliary feedwater pumps or discharge flow paths inoperable, restore a
pump and flow path to one steam generator to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in hot shutdown within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and at an RCS temperature less than 350'F within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
Amendment No.
gg 3.4-1 Proposed
3.4.2.2 TURBINE DR EN AUXILIARYFEEDWATER SU Y
S ecification
. With the RCS temperature at or above 350'F the turbine driven auxiliary feedwater
- pump, both steam admission and both discharge flow paths must be operable.
The steam turbine driven auxiliary feedwater pump must be shown to be operable prior to exceeding 5% power.
Action
- a. With one steam admission flow path or pump discharge flow path inoperable, restore to operable status within 7 days or submit a Special Report in accordance with Specification 6.9.2 outlining the -cause for inoperability and. plans for restoring to operable status.
- b. With the turbine driven auxiliary feedwater pump or both discharge flow paths or both steam admission flow paths inoperable, restore the inoperable pump and a discharge flow path and a steam supply associated with the same steam generator to operable status within 7 days or be in hot shutdown within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and at an RCS temperature less than 350'F in the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
- c. With one motor driven auxiliary'feedwater pump or discharge flow path inoperable, the turbine driven auxiliary feedwater
- pump, the steam admission flow path from, and discharge flow path to, the steam generator that is aligned with the inoperable motor driven pump shall be operable, or restore the turbine driven pump or flow path(s) associated with that steam generator to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in hot shutdown within the next 6
hours and at an RCS temperature less than 350'F in the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
3.4.2.3 STANDBY AUXILIARYFEEDWATER SUPPLY S ecification With the RCS temperature at or above 350'F, both standby auxiliary feedwater pumps and their associated discharge flow
- paths, including cross-connects, shall be operable.
Action With one standby auxiliary feedwater pump or its discharge or crosstie flow path inoperable, restore the pump and flow path(s) to operable status within 7 days or be in hot shutdown within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and. at an RCS temperature less than 350'F within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
3.4.3 SOURCES OF AUXILIARYFEEDWATER S ecification With the RCS,temperature at or above 350'F, the following sources of auxiliary feedwater shall be operable:
Amendment No.
gg 3.4-2 Proposed
a.
The co nsate storage tanks wit a
minimum of 22, 500 gallons of water and flow paths to the motor driven and turbine driven auxiliary feedwater
- pumps, and
, b. Service water supply to the motor driven and standby auxiliary feedwater pumps, "and
- c. Service water supply to the turbine driven auxiliary feedwater pump if one motor driven auxiliary feedwater pump or discharge flow path is inoperable.
Action
- a. With the required 22,500 gallons of water unavailable in the condensate storage tanks, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> either
- 1) restore the required amount of water, or
- 2) demonstrate the operability of the service water system as a
backup water supply to the auxiliary feedwater system and restore the required amount of water in the condensate storage tanks within 7 days, or
- 3) be in hot shutdown within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and at an RCS temperature less than 350'F within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
- b. With the service water system or service water flow path to any motor driven or standby auxiliary feedwater pump inoperable, declare the affected pump inoperable.
Basis
- c. With the service water flow path to the turbine driven auxiliary feedwater pump inoperable, when one motor driven auxiliary feedwater pump or discharge flow path is inoperable, declare the turbine driven pump inoperable.
A reactor shutdown from power requires removal of core decay heat.
Immediate decay heat removal requirements are normally satisfied by the steam bypass to'he condenser.
Therefore, core decay heat can be continuously dissipated via the steam bypass to the condenser as feedwater in the steam generator is converted to steam by heat absorption.
Normally, the capability to return feedwater flow to the steam generators is provided by operation of the turbine cycle feedwater system.
In the event of a reactor and turbine trip, together with a loss of offsite power, immediate decay heat removal is effected via the main steam safety valves.
The eight main steam safety valves have a total combined rated capability of 6,580,000 lbs/hr.
This capability exceeds the total full power steam flow of 6,577,279 lbs/hr.
Following reactor/turbine
- trip, the auxiliary feedwater system is automatically initiated on low steam generator level or a trip of both main feedwater pumps (the turbine-driven auxiliary feedwater pump is also initiated on low-low steam generator level in both steam generators, or a loss of power to electrical buses 11A and 11B).
The motor-driven auxiliary feedwater system has two 100% capacity
- pumps, each normally serving one steam generator.
Amendment No.
gg 3.4-3 Proposed
'Their sources of w er include the normally-a gned but non safety-related condensate storage tanks, and the safety-related.
. system.
The turbine driven auxiliary feedwater system consists of one 200-o capacity
- pump, two steam supply flow paths (one from each steam generator),
a normal source of water from the non safety-related condensate storage tanks, and a backup source of water from the safety-related service water system.
The Ginna Station accident analyses
assume 200 gpm is delivered to an operable steam generator, in order to remove the required decay heat.
The combination of motor driven and turbine driven auxiliary feedwater pumps assures operability of the system to meet these requirements, even assuming a single failure.
In the event of a high energy line break outside containment,'
the operability of the motor driven and, turbine driven auxiliary feedwater systems cannot be ensured, since the systems are not qualified for the ensuing harsh environment.
The standby auxiliary feedwater
- system, which consists of two
- pumps, a discharge flow path to each steam generator, a cross-connect, and. suction from both loops of the safety-related service water system, performs this function.
Operator action from the control room is required to effect operation of the SAFW system.
The worst-case
- analysis, a feedwater line break,'
has been performed, and the consequences were found to be acceptable.
In the event of a Station Blackout (loss of all onsite and offsite AC power), the turbine driven AFW system would automatically actuate to maintain decay heat removal capability.
In accordance with the guidance established by 10CFR50. 63, and implementing documents (Regulatory Guide 1.155 and NUMARC 87-00), an additional single failure need not be assumed concurrent with a Station Blackout event.
- Thus, the turbine driven auxiliary feedwater system can be considered.
- operable, as long as one steam admission flow path and one discharge flow path associated with the same steam generator, and the requisite deliverable condensate storage tank capacity is available.
Because of the low probability of the Station Blackout event, the path can be unavailable for up to 27 days. "'owever, a prudent out-of-service time of 7 days has been selected for this circumstance.
The minimum amount of water in the condensate storage tanks is the amount needed to remove decay heat for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> after reactor trip from full power.'
An unlimited source for auxiliary feedwater is available using the safety-related service water system.
References:
(1)
UFSAR Section 10.5 (2)
UFSAR Sections 15.2, 15.3, 15.6 (3) "Effects of High Energy Pipe Breaks Outside the Containment Building" submitted by letter
- dated, November 1,
1973 from K.W.
- Amish, Rochester Gas and Electric Corporation to A.
Giambusso, Deputy Director for Reactor Projects.
(4) L.D. White, Jr. letter to Mr. D.L. Ziemann, USNRC dated March 28, 1980.
3.4-4 proposed
(5) "Allowable Unavl.ability of the TDAFW Sye4I", RGE88-11, 2/89
.(6)
SEP Topic XV-6, Feedwater System Pipe Breaks, NRC SER dated 9/4/81 3.4-5 Proposed
I 4.8 AUXILIARY WATER SYSTEMS A licabilit Applies to periodic testing requirements of the turbine driven and motor driven auxiliary feedwater pumps and of the standby auxiliary feedwater pumps.
Ob'ective To verify the operability of the auxiliary feedwater system and the standby auxiliary feedwater system and their ability to respond properly when required.
S ecification 4.8.1 Except during cold or refueling shutdowns each motor driven auxiliary feedwater pump unless it is declared inoperable without testing willbe started at intervals not to exceed one month and a flowrate of 200 gpm established.
4.8.2 Except during cold or refueling shutdowns the steam turbine driven auxiliary feedwater pump unless it is declared inoperable without testing will be started at intervals not to exceed one month and a flowrate of 400 gpm established.
If one discharge flow is inoperable in accordance with Specification 3.4.2.2.a, a
flow of 200 gpm must be established.
4.8.3 Except during cold or refueling shutdowns the auxiliary feedwater pumps suction discharge and crossover motor operated valves shall be exercised at intervals not to exceed one month.
4.8.4 Except during cold or refueling shutdowns each standby auxiliary feedwater pump unless it is declared inoperable without testing, will be started at intervals not to exceed one month and a flowrate of 200 gpm established.
4.8.5 Except during cold or refueling shutdowns, the
- suction, discharge, and cross-over motor operated valves for the standby auxiliary feedwater pumps shall be exercised at intervals not to exceed one month.
4.8.6 These tests shall be considered satisfactory if control board indication and subsequent visual observation of the equipment demonstrate that all components have operated properly.
These tests shall be performed prior to exceeding 5% power during a startup if the time since the last test exceeds one month.
4.8.7 At least once per 18 months, control of the standby auxiliary feed system pumps and valves from the control room will be demonstrated..
4.8-1 Proposed.
4.8.8 At least or e per 18 months during sh own:
- a. Verify that each automatic valve in the flow path for each
.auxiliary feedwater pump actuates to its correct position upon receipt of each auxiliary feedwater actuation test signal.
- b. Verify that each auxiliary feedwater pump starts as designed automatically upon receipt of each auxiliary feedwater actuation test signal.
4.8.9 Each instrument channel shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL CALIBRATION, and CHANNEL FUNCTIONAL TEST operations for the MODES and at the frequencies shown in Table 4.1-1.
4.8.10 The
RESPONSE
TIME of each pump and valve required for the operation of each "train" of auxiliary feedwater shall be demonstrated to be within the limit of 10 minutes at least once per 18 months.
Basis The monthly testing of the auxiliary feedwater pumps by supplying feedwater to the steam generators will verify their ability to meet design.
The flowrates will be measured at a simulated steam generator pressure of 1100 psia.
The capacity of any one of the three auxiliary feedwater pumps is sufficient to meet decay heat removal requirements.
Proper functioning of the steam turbine admission valve and the feedwater pumps start will demonstrate the integrity of the steam driven pump.
Monthly testing of the standby auxiliary feedwater pumps by supplying water from a condensate supply tank to the steam generators willverify their ability to meet design.
The flowrate will be measured at a
simulated steam generator pressure of 1100 psia.
The standby auxiliary feedwater pumps would be used only if all three auxiliary feedwater pumps were unavailable.
One of the two standby pumps would be sufficient to meet decay heat removal requirements.
Proper functioning of the suction valves from the service water system, the discharge
- valves, and the crossover valves will demonstrate their operability.
The operability of the standby auxiliary feedwater pump flow paths between the pumps and the steam generators is demonstrated using water from the test tank.
Testing of the main auxiliary feedwater pumps using their primary source of water supply willverify the operability of the auxiliary feedwater flow path.
Verification of correct operation will be made both from instrumentation within the main control room and by direct visual observation of the pumps'.
In accordance with 10CFR50.63, the Station Blackout Rule, a single failure need not be=assumed, in addition to the Station Blackout event.
In the event of a Station Blackout, 200 gpm is required for reactor decay heat removal and cooldown capability.
Amendment No-gg 4.8-2 Proposed
~
)
References:
- UFSAR Section 10.5 UFSAR Section 15.2, 15.3, 15.6 "Effects of High Energy Pipe Breaks Outside the Containment Building" submitted by letter dated November 1, 1973 from K.W. Amish, Rochester Gas and Electric Corporation to A.
Giambusso, Deputy Director for Reactor Projects, U.S. Atomic Energy Commission.
Allowable Unavailability of the TDAFW System, RGE 88-11, 2/89.
4.8-3
- Proposed,
ATTACHMENT B The purpose of this Amendment is to incorporate additional specifications and. Action Statements regarding required operability of the Ginna Station motor driven and, turbine driven auxiliary feedwater pumps.
In particular, additional Action Statements have been added for the turbine driven auxiliary feedwater system, and its relationship to 10CFR50.63, the "Station Blackout Rule".
- Also, the format of the Specifications and Action Statements have been modified.
for clarification.
The Action Statements for the turbine driven auxiliary feedwater system are incorporated.
into paragraphs 3.4.2.2.
In accordance with 10CFR50.63, the Station Blackout Rule, one AC-independent means of providing auxiliary feedwater is required.
Thus, with one of the two steam supply or discharge flow paths inoperable, the requirements of 10CFR50.63 are met.
Since service water is not AC-independent, it also need not be available to meet Station Blackout.
- Thus, startup or continued operation is considered acceptable under such circumstances, although a Special Report to the NRC is considered
- prudent, and has been incorporated into 3.4.2.2.a..
Technical Specification 4.8.2 has been modified to specify testing requirements of the turbine driven auxiliary feedwater pump if the pump has one operable discharge flow path.
With both steam supply or discharge flow paths, or the pump itself not operable, RG&E has evaluated Station Blackout risk.
Based on Reference (5),
an allowable unavailability of 27 days/year is acceptable, with a diesel generator reliability of 0.95.
RG&E's reliability is greater than 0.975, based. on our response to the Station Blackout Rule.
A prudent maximum out-of-service duration of 7 days has been chosen.
Following a reactor/turbine trip, the motor driven auxiliary feedwater pumps are automatically started on a low steam generator level or a trip signal from both main feedwater pumps.
The motor driven auxiliary feedwater pumps will also automatically start on a safety injection actuation.
With one motor driven auxiliary feedwater pump inoperable, the turbine driven auxiliary feedwater can be started and deliver flow to one or both steam generators.
In addition, the standby auxiliary feedwater pumps can deliver flow to either steam generator.
Because of the number and diverse means of acceptable backup to the auxiliary feedwater pumps, it is considered acceptable to require the submittal of a Special Report to the NRC as the Action Statement, when one motor driven AFW flow path is declared inoperable, rather than requiring a shutdown Action Statement.
This is consistent with previous Specification 3.4.2.b.
If two motor driven auxiliary feedwater pumps are inoperable, the turbine driven auxiliary feedwater pump can supply 100% of the required accident flow rate to both steam generators.
In addition, each standby auxiliary feedwater pump can supply 100% of the required service water flow to its associated steam generator.
A 72-hour duration has been selected to restore one of the two motor driven auxiliary feedwater pumps to operable status.
This is consistent with the existing technical specification 3.4.2c.
RG&E has also clari d the case where one turb~
driven and one motor driven auxiliary feedwater pump associated with the same steam
. generator would be inoperable (3.4.2.2.c).
This would result in no automatic actuation of auxiliary feedwater to that steam generator.
Although the motor driven and turbine driven auxiliary feedwater pumps have provisions for delivering to either steam generator, and the standby auxiliary feedwater system has been.
shown to, meet required delivery requirements under worst-case conditions (per Reference 6),
a 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> duration has been selected to restore one of the two automatic means to service.
This is comparable to the intent of previous Specification 3.4.2.c.
In accordance with 10CFR50.91, these changes to Technical Specifications have been evaluated. to determine if the operation of the facility in accordance with the proposed Amendment would:
1.
involve a significant increase in the probability or consequences of an accident previously evaluated; or 2.
create the possibility of a
new or different kind of accident previously evaluated; or 3.
involve a significant reduction in a margin of safety.
As explained in the above discussions, the
- proposed, Amendment incorporates additional Action Statements regarding the turbine driven auxiliary feedwater system, accounting for the publication of and RG&E compliance with 10CFR50.63, the Station Blackout Rule.
These proposed changes do not increase the probability or consequences of a
previously-evaluated,
- accident, or create a
new or different kind of accident.
Furthermore, there is no significant reduction in the margin of safety for any particular Technical Specifications, and the addition of restrictions, such as for the turbine driven AFW pump and flow
- paths, has increased the margins of safety.
The detailed changes are described in Table 1.
Therefore, Rochester Gas and Electric submits that the issues associated with this Amendment request are outside the criteria of 10CFR50.91 and a no significant hazards finding is warranted.
B-2
TABLE 1 CHANGE EFFECT Reformat Specifications into Section 3.4.1 (main steam safety valves); 3.4.2 (aux-iliary feedwater, including subsections 3.4.2.1 motor driven auxiliary feedwater supply, 3.4.2.2 turbine driven auxiliary feedwater
- supply, and 3.4.2.3 standby auxiliary feedwater supply); 3.4.3 (sources of auxiliary feedwater) with appropriate Specification and Action Statements listed within each Section.
All Specifications are included in Section 3.4.1, and Actions are included in 3.4.2 Specification 3.4.1 incor-porates previous Specifi-cations 3.4.1.a and 3.4.2.a, with minor wording changes.
Format change only.
No change in meaning.
Specification 3.4.2.1 includes previous Specifications 3.4.l.b, 3.4.2.b, and 3.4.2.c.
Backup supply from service water now incorporated into 3.4.3.b and 3.4.3.b action.
Definition of flow path clari-fied'~
No technical changes.
Flow path definition clarified, to be con-sistent with accident analysis re-quirements.
Specification 3.4.2.2 is com-parable to previous Specifi-cation 3.4.1.c.
Reference to service water as backup supply has been moved to Specifi-cation 3.4.3.c and Action 3.4.3.c.
Previously, service water was required as source to TDAFW at all times.
This is being modified to recognize that service water is not an AC independent source that could be used for Station Blackout.
Service water is required to be a
backup source of water to the TDAFW pumps only if the TDAFW pump is used as an automatic transient or accident mitigation feature in con-junction with the motor-driven AFW pumps (i.e.,
when one motor-driven AFW pump is out of service).
Specification Action 3.4.2.2a, is identical to the previous 3.4.2.b section concerning an auxiliary feedwater flow path (suction or discharge).
No technical change.
Specification Action 3.4.2.2.b is a new requirement in the Technical.Specifications, but is consistent with RG&E's interim policy, which has been in effect since January 6,
- 1989, as described in a letter from R.
C. Mecredy to William T. Russell.
New, additional Technical Speci-fication (consistent with RG&E interim policy.
Specification Action 3.4.2.2.c is comparable to previous 3.4.2.c except that the present 3.4.2.2.c explicitly requires that one auto-matically-actuated source of AFW be available to each steam generator.
This is consistent with the accident analysis assumptions of the
- UFSAR, including single failure.
This is less restrictive that RG&E's interim policy, which required both TDAFW flow paths to be operable in order to consider the TDAFW pump
- operable, but does not con-stitute a reduction in'margin of safety, since all accident analysis assumptions are met; and no credit for more than 200 gpm to any steam generators is taken by RG&E in the design of the auxiliary feedwater system.
New additional Technical Specifi-cation.
Specif ication 3:4. 2. 3 is com-parable to previous Specifi-cation 3.4.1.e.
Reference to service water has been moved to Specification 3.4.3.b and Action 3.4.3.b.
This is comparable to previous Section 3.4.1.e and 3.4.2.d.
Change in format only no change in intent.
Specification ACTION 3.4.2.3 is comparable to previous action 3.4.2.d.
The only format change is that service water is considered separately in 3.4.3.b but actions associated with service water supply to the Standby Aux-iliary Feedwater pumps in 3.4.3.b require the same actions as previous Action 3.4.2.d.
In addition, the cross-connects have been ex-plicitly identified as being part of the Standby AFW system required for the system to be considered operable.
Comparable to previous 3.4.2.d, except that cross-connects have been explicitly identified.
Section 3.4.3 Sources of Aux-iliary Feedwater.
This is a new sects.on breaking out the sources of AFW from old speci-fication 3.4.1.b, 3.4.1.c, 3.4.1.d and 3.4.1.e.
New section encompassing sources of AFW required in 3.4.1.b, 3.4.1.c, 3.4.1.d and 3.4.1.e and actions from 3.4.2.b, 3.4.2.c, 3.4.2.d and 3.4.2.e (effects discussed below).
Specification 3.4.3.a has been reworded, but is identical in intent to previous Speci-fication 3.4.1.d.
Comparable to previous speci-fication 3.4.1.d.
Specification 3.4.3.b is a new specification requiring service water supply to the motor driven and standby aux-iliary feedwater pumps.
This section takes the parenthe-tical statements from previous Specifications 3.4.1.b and 3.4.1.e and makes them stand alone to minimize confusion.
Same as parenthetical statements in previous Specifications 3.4.1.b and 3.4.1.e.
Specification 3.4.3.c address-es service water supply to the TDAFW pump.
The words are similar for service water supply to those in the paren-thetical statement in previous Specification 3.4.l.c.
However, the requirement has been changed to require this source of water only if one motor driven AFW pump or dis-charge flow path is inoper-
- able, and would, therefore, be needed to meet accident analy-sis assumptions for automatic AFW delivery to the steam generators, including single failure.
Comparable to previous specifi-cation 3.4.1.c, with the exception that startup and operation would, be allowed to continue if the TDAFW system was operable based.
on the normal source (CST) of water for suction even if SW was not avail-able, unless one TDAFW pump or flowpath were inoperable.
In
- general, the turbine driven AFW pump is required for a station blackout event.
Since service water is not an AC independent source that could be used for station blackout, it is a backup source only when the TDAFW pump is used as an automatic transient/
accident mitigation factor (backup for a motor driven AFW pump).
Specification Action 3.4.3.a is the same as previous Action 3.4.2.e.
Same as previous 3.4.2.e.
Specification Action 3.4.3.b is reformat of the intended.
actions of previous Specifi-cations 3.4.2.b and 3.4.2.d.
This section is written to clarify the point that the service water supply to any motor driven or standby aux-iliary feedwater pump must be operable for the pump to be operable.
Comparable to the intent described in 3.4.2.b and 3.4.2.d.
This was left to interpretation previously.
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