ML19220D069
| ML19220D069 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/27/1978 |
| From: | Herbein J Metropolitan Edison Co |
| To: | Varga S Office of Nuclear Reactor Regulation |
| References | |
| GQL-0153, GQL-153, NUDOCS 7905160468 | |
| Download: ML19220D069 (21) | |
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- ere n< uccurss METROPOLI FAN EDISON COMPANY POST OFFICE EOX 542 READING. PENNSYLVANI A 19603 TELEPHCNE 215 - 929-260"
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r, Ci' ecter cf :iuclear Reactor Regulaticn Atta:
- 'r. S. A. Varga, Chief l'
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~nree Mile Island nuclear Station Unit 2 (CC-2)
~'oc k et :Ic. 50-320 Additicnal Informatien Ocncerning Fi'e Protection Attached for ycur reviev are revised respenses to Fositicn 10 and aucat1cn li in acccrdance with cur letter of Janua y 16, 1973 (G01 0059) and discussions at the January 23, 1978 ceeting with the Fire Protection review teen.
Should you have ary questiens, please contact nf staff.
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Attachment:
- 1) Eevised respenses te F-10 and ;-19 (10 acpies)
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Response to Position 10 - All perimeter grade level doors will be so supervised by fuel loading. All other fire doors will be locally alarmed. A IJght will i==ediately flash when the door is opened followed 10 =inutes later by an audible alarm in the area unless the door is closed within that ti=e peried.
The local alarms will be installed as soon as available during unscheduled cutages or no later than the end of the first refueling.
A sign will be posted on each door indicating the need to keep it closed.
All doors have automatic closers, many with industry accepied hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequr:nt basis by auxiliary operators as they perform their nor=al duties. These personnel would hear audible locau alarms if they should be sounding.
Contidering all of the above and the fact that the likelihood of a tire actually occurring is small, there ir, little, if anything, to be gained by electrically supervising over 1G3 fire doors frc= one constantly mennad area.
We consider that the above modifications meet the intent of the NRC's concern and should be aa acceptable alternate Lo the position as stated.
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Response to Position 10 - All peri =eter grade level doors will be so supervised by fuel loading. All other fire doors will be locally ala rmed.
A light will i==ediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that time period.
The local alarms will be installed as soon as available during unscheduled cutages or no later than the end of the first refueling.
A sign vill be posted on each door indicating the need to keep it closed.
All doors have auta=atic closers, =any with industry accepted hold open features designed to close due to 4 fire in the area.
Safety related areas of the p1. ant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alarms if they should be sounding.
Considering all of the above and the fact that the likelihood of a fire actually occurring is small, there is little, if anything, to be gained by electrically supervising over 100 fire doors from one constantly
=anned area.
We consider that the above =odifications =eet the intent of the NRC's concern and should be an acceptable alternate to the position as stated, r
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Response to Position 10 - All peri =eter grade level doors will be so supervised by fuel loading. All other fire doors will be locally alar =ed.
A light will i==ediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that ti=e period.
The local alarms will be installed as soon as available during unscheduled outages or no later than the end of the first refueling.
A sign will be posted on each door indicating the need to keep it closed.
All doors have automatic closers, many with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alarms if they should be sounding.
Considering all of the above and the fact that the likeliheed of a fire actually occurring is s=all, taere is little, if anything, to be gained by electrically supervising over 100 fire doors from one constantly canned area.
We consider that the above codifications meet the intent of the NRC's concern and should be an acceptable alternate ta the position as stated.
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Respcnse tc Question 17'- Curbed Areas liesel Fuel Cil Tr2 Rec =: An 13" curb separates the tvc 25,CC0 gallen tarls.
Tne vest tM curbed area vill centain 7,120 gal-lens Of cil. Se east tr2 curbed area vill contain 6,h10 gallens Of oil, (excluding su=p pits en each side).
S e entire rec = up tc the exterior decrsill vill contain 27,230 gallens.
Leakage above this level vill fler cutside thrcugh the exterier decr and away frc= cther safecy related equipnent.
Diesel Tuel 011 Day Tank: Cne 500 gallen ::ay Tr2 is provided in each Diesel Rec = suspended frc= a vall.
- fo curbed area is provided around these t d s.
Se fire hazards analysis shows that a fire in ene diesel rec = v4'i ~* affect safe shutdevn.
?rbine lube Oil Sterage Trl: Cne IL,0C0 gallen =ax. capacity tank is loested in ?rbine Building (nct a safety related area).
- icr=al verking level is 10,000 gall:ns.
Curb capacity is 10,200 gallens.
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Response to Position 10 - All periseter grade level doors will be so supervised by fuel loading. All other fire doors will be locally alarmed.
A light will i==ediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that ti=e pericd.
The local alarms will be installed as soon as available during unscheduled outages or no later than the end of the first refueling.
A sign will be posted on each door indicating the need to keep it closed.
All doors have autematic closers, many with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alar =s if they should be sounding.
Considering all of the above and the fact that the likelihood of a fire actually occurring is small, there is little, if anything, to be gained by electrically supervising over 100 fire doors from one constantly manned area.
We consider that the above =odifications =eet the intent Cf the NRC's concern and should be an acceptable alternate to the position as stated.
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Rasponse to Position 10 - All periseter grade level doors will be so supervised by fuel loading. All other fire doors will be locally alar =ed.
A light will i==ediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that ti=e period.
The local alarms will be installed as soon as available during unscheduled outages or no later than the erd of the first refueling.
A sign will be posted on each door indicating the need to keep it closed.
All doors have automatic closers, =any with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alarms if they should be sounding.
Considering all of the above and the fact that the likelihood of a fire actually occurring is small, there is little, if anything, to be gained by electrically supervising over 100 fire doors from one constantly canned area.
We consider that the above modifications meet the intent of the NRC's concern and should be an acceptable alternate to the position as stated.
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Fesponse to ^uestica 19 '- Curbed feeas
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Diesel Fuel Cil Day ank:
Cne 500 ga.llen Day Tank is prc' tided 4,
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Response to Position 10 - All peri =eter grade level doors will be so supervised by fuel loading.
All other fire doors will be locally alarmed.
A light will i==ediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that ti=e period.
The local alarms will be installed as soon as available during unscheduled outages or no later than the end of the first refueling.
A sign vill be posted on each door indicating the need to keep it closed.
All doors have auto =atic closers, =any with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alar =s if they should be sounding.
Considering all of the above and the fact that the likelihood of a fire actually occurring is s=all, there is little, if anything, to be gained by electrically supervising over 100 fire doors frem one constantly
=anned area.
We consider that the above =odifications =eet the intent of the NRC's concern and should be an acceptable alternate to the position as stated.
120 063
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Eespense to 0.uestien 19 - Curbed Areas
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Diesel Fuel Oil Day Tad: One COO gallen Day Tad is provided in eacn' Diesel Ecc= suspended :'rcs a vall.
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Response to Position 10 - All perimeter grade level doors will be so supervised by fuel loading.
All other fire doors will be locally alarmed. A light will i==ediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that ti=e period.
The local alarms will be installed as soon as available during unscheduled cutages or no later than the end of the first refueling.
A sign will be posted on each door indicating the need to keep it closed.
All doors have automatic closers, =any with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are tourei on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alar =s if they should be sounding.
Considering all of the above and the fact that the likelihood of a fire actually occurring is small, there is little, if anything, to be gained by electrically supervising over 100 fire doors from one coastantly
=anned area.
We consider that the above zodifications =eet the intent of the NRC's concern and should be an accepcable alternate to the position as stated.
120 065
Respense to question 19 '. Curbed !ceas 2.---.
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v, Diesel Fuel 01'. Day Tank: Cne 500 gallen Day Tank is provided
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Response to Position 10 - All peri =eter grade level doors will be so supervised by fuel loading. All other fire doors 11 be locally alarmed. A light will i==ediately f 'sh when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that ti=e pericd.
The local alarms will be installed as soon as available during unscheduled outages or no later than the end of the first refueling.
A sign will be posted on each door indicating the need to keep it closed.
All doors have automatic closers, many with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alarms if they should be sounding.
Considering all of the above and the fact that the likelihood of a fire actually occurring is small, there is little, if anything, to be gained by electrically supervising over 100 fire doors from one constantly
=anned area.
We consider that the above =odifications =eet the intent of the NRC's concern and should be an acceptable alternate to the position as stated.
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Response to Questien 19 - Curbed Areas Diesel Fuel Oil Tank Ecc=: An 13" curb separates the two 25,000 gallen tanks.
Se vest tank curbed area vill contain 7,120 gal-lens of cil.
The east tank curbed area vill contain 6,h10 gallens of cil, (excluding sucp pits en each side).
The entire rec = up to the exterier decrsill vill centain 27,230 gallens.
Leakage above this level wdll flev cutside through the exterier deer and away frc= cther safety related equipnene.
Diesel Fuel Cil Day Tank: One 500 gallen Day Tank is provided in each Diesel Rec = suspended frc= a vall.
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'-aa is previded arcund these tanks.
The fire hacards analysis shcws that a fire in ene diesel rec = vill not affect safe shutdcun.
Turbine labe Cil Storage Tank: One ik,0C0 gallen nax. capacity tank is located in Turbine 3uilding (nct a safety related area).
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Response to Position 10 - All perimeter grade level doors will be so supervised by fuel loading.
All other fire doors will be locally alar =ed.
A light will i==ediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless che door is closed within that ti=e period.
The local alarms will be installed as soon as available during unscheduled outages or no later than the end of the first refueling.
A sign will be posted on each door indicating the need to keep it closed.
All doors have automatic closers, many with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alarms if they should be sounding.
Considering all of the above and the fact enat the likelihood of a fire actually occurring is small, there is little, if anything, to be gained by electrically supervising over 100 fire doors from one constantly manned area.
We consider that the above modifications meet the intent of the tiRC s concern and should be an acceptable
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Response to Position 10 - All perimeter grade level doors will be so supervised by fuel loading. All other fire doors will be locally alarmed.
A light will i=nediately flash when the door is opened followed 10 minutes later by an audible alarm in the area unless the door is closed within that time period.
The local alarms will be installed as soon as available during unscheduled cutages or no later than the end of the first refueling.
A sign vill be posted on each door indicating the need to keep it closed.
All doors have autc=stic closers, =any with industry accepted hold open features designed to close due to a fire in the area.
Safety related areas of the plant are toured on a frequent basis by auxiliary operators as they perform their nor=al duties.
These personnel would hear audible local alar =s if they should be sounding.
Considering all of the above and the fact that the likelihood of a fire actually occurring is small, there is little, if anything, to be gained by electrically supervising over 100 fire doors from one constantly manned area.
We consider that the above modifications meet the incept of the NRC's concern and should be an acceptable alternate to the position as stated.
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