ML18102A153

Proposed Tech Specs,Providing Revised TS Bases Pages for Specs 3.4.9.3 & 3.4.10.3

ML18102A153
Person / Time
Site:	Salem
Issue date:	05/31/1996
From:	Public Service Enterprise Group
To:
Shared Package
ML18102A152	List: ML18102A151 ML18102A153
References
NUDOCS 9606070025
Download: ML18102A153 (5)

Text

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LR-96141 ATTACHMENT 1 REVISED TECHNICAL SPECIFICATION BASES PAGES

( ---- 9606070025 960531 PDR AOOCK 05000272 P

PDR

REACTOR COOL.AN"!' SYS:E!-1 Finally, the nev 10CFR50 rule which addresses the metal temperature of the clo*ure bead flan1* regions is considered. This 10CFRSO rule states that ~~e a::etal temperatuse of the closure fl~ge re1ions must exceed th* 111&terial RT by at lu*t 120 1 for normal operation when th* pressure exceeds 20 percent~

the preservice hydrostatic test pressure (621 psig for Salem)

Table 83/4.4-1 indicates.that the li.mitin1 RT?fJI of 29°1 occurs in ~h* closure head f4an1* of Salem Unit l, and the mini.ANlll & lovable temperature of this region is l48°F at pressures 1reater than 621 psi1.

These limits do not affect Figures 3.4-2 and 3.4-3.

Althou1h th* pressurizer operates in temperature ran1es above tho** for which there is reason for concern of non-ductile failura,*operatin1 limits are provided to assure compatibility of operation with the fatisua analysis perfot"llled in accordance with the ASK! Code requirements.

The OPERABILITY of tvo POPSs or an RCS vent openin1 of 1reater than J.14 square inches ensures that the RCS will be protectd from pressure transients which could exceed th* limits of Appendix G to 10 ~1R Part SO when one or more of the RCS cold leis are less than or equal to 312 r.

Either POPS has adequate relievin1 capability to protect the RCS froa ov*t"l)r*s*urization when the transient is lU!ited to either (l) the start of an idle RCP with the 0

secondary water temperature of the steaa 1enerator less than or equal to SO F above th* RCS cold lea temperatures, or (2) th* start of a afety injection pump and its injection into a water solid RC SALEM - UNIT 1 B 3/4 4-11 Amendment N0.108

REACTOR COOLANT SYSTEM BASES Finally, the new 10CFRSO rule which addresses the metal temperature of the closure head flange regions is considered.

This 10CFRSO rule states that the metal temperature of the closure flange regions must exceed the material RTNDT by at least 120°F for normal operation when the pressure exceeds 20 percent of the preservice hydrostatic test pressure (621 psig for Salem).

Table B3/4 4-1 indicates that the limiting RTNDT of 28°F occurs in the closure head flange of Salem Unit 1, and the minimum allowable temperature of this region is 148°F at pressures greater than 621 psig.

These limits do not affect Figures 3.4-2 and 3.4-3.

Although the pressurizer operates in temperature ranges above those for which there is reason for concern of non-ductile failure, operating limits are provided to assure compatibility of operation with the fatigue analysis performed in accordance with the ASME Code requirements.

The OPERABILITY of two POPS or an RCS vent opening of greater than 3.14 square inches ensures that the RCS will be protected from pressure transients which could exceed the limits of Appendix G to 10 CFR Part 50 when one or more of the RCS cold legs are less than or equal to 312°F.

Either POPS has adequate relieving capability to protect the RCS from overpressurization when the transient is limited to either (1) the start of an idle RCP with the secondary water temperature of the steam generator less than or equal to 50°F above the RCS cold leg temperatures, or (2) the start of an intermediate head safety injection pump and its injection into a water solid RCS, or the start of a high head safety injection pump in conjunction with a running positive displacement pump and injection into a water solid RCS.

SALEM - UNIT 1 B 3/4 4-11

EEACTOR COOUNJ SYSTEM Final.lv, the new 10CFRSO rule which addresses the metal temperature of :he closur~ head flange regions is considered. This 10CFRSO rule states tha: :~e me tci.l temperature of the closure :1ange regions must exceed the mate:-ial R~,--

by at least l20°F for normal op"ration when the pressure exceeds 20 percen:*';::

the preservice hydrostatic test pressure (621 psig for Salem).

Table B3/4.4-l indicates that the limiting RTND" of 28°F occurs ir. the closure ~ea~

flang~ of Salem Unit 2, and the minimum a1lowable temperature of this :-egior.

is l48°F at pressures greater than 621 psig.

These limits do not affec:

Figures 3.4-2 and 3.4-3.

Although the pressurizer operates in temperature*ranges above those for w~~c~

there is reason for concern of non-ductile failure, operating limits are provided to assure compatibility of operation with the fatigue analysis performed in accordance with the ~SME Code requirements.

The OPERABILITY of t'Jo POPSs or an RCS *1ent opening of greater than 3. l.:+

square inches ensures :hat the RCS will be protectd from pressure transie~:s which could exceed the i~mits of Appendix G to 10 CFR Part 50 when one o~ =o~e of the RCS cold legs are less :~an or equal to 312°F.

Either POPS has adequate relieving capability to protec~ the RCS from overpressurization w~e~

the transient is limited to ei:her ;l) the start of an idle RCP with the secondary water tempe:-a:ure of :he steam generator less than or equal to so-~

above the RCS cold leg :emperat*...:res. or (2) the start of ~afety injectior.

pump and its injection into a water solid RCS.

~\\

>'\\fUM(.2:.d: httul SALEM -

l~IT 2 B 3/4

-c

I I

REACTOR COOLANT SYSTEM BASES Finally, the new 10CFRSO rule which addresses the metal temperature of the closure head flange regions is considered.

This 10CFRSO rule states that the metal temperature of the closure flange regions must exceed the material RTNDT by at least 120°F for normal operation when the pressure exceeds 20 percent of the preservice hydrostatic test pressure (621 psig for Salem).

Table B3/4 4-1 indicates that the limiting RTNDT of 28°F occurs in the closure head flange of Salem Unit 2, and the minimum allowable temperature of this region is 148°F at pressures greater than 621 psig.

These limits do not affect Figures 3.4-2 and 3.4-3.

Although the pressurizer operates in temperature ranges above those for which there is reason for concern of non-ductile failure, operating limits are provided to assure compatibility of operation with the fatigue analysis performed in accordance with the ASME Code requirements.

The OPERABILITY of two POPS or an RCS vent opening of greater than 3.14 square inches ensures that the RCS will be protected from pressure transients which could exceed the limits of Appendix G to 10 CFR Part 50 when one or more of the RCS cold legs are less than or equal to 312°F.

Either POPS has adequate relieving capability to protect the RCS from overpressurization when the transient is limited to either (1) the start of an idle RCP with the secondary water temperature of the steam generator less than or equal to 50°F above the RCS cold leg temperatures, or (2) the start of an intermediate head safety injection pump and its injection into a water solid RCS, or the start of a high head safety injection pump in conjunction with a running positive displacement pump and injection into a water solid RCS.

SALEM - UNIT 2 B 3/4 4-12