ML20198E052
| ML20198E052 | |
| Person / Time | |
|---|---|
| Site: | 07109192 |
| Issue date: | 10/24/1985 |
| From: | ANEFCO, INC. |
| To: | |
| Shared Package | |
| ML20198E042 | List: |
| References | |
| NUDOCS 8511130136 | |
| Download: ML20198E052 (21) | |
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REVISION 9 - 10/24/85 INSERT PAGES REMOVE PAGES
'7.1-3 7.1-3 7.124 7.1-4 7.1-5 7.1-5 7.2-2 7.2-2 7.2-3 7.2-3 7.3-2 7.3-2 I
.7.3-3 7.3-3 J
8.1-1 8.1-1 8.2-1 8.2-1 4
1 Drawings Drawings j
133-1 133-1 134-la 134-la 135-1 135-1 i
1 b
d 4
j i.
y 1.
0511130136 851025 PDR ADOCM 07109192 i
C PM
- ,.L.
The concerns of Mr. R. Odegarden to Mr. J.D. Murphy in their telephone conversation have been resolved as follows.
- 1. Bearing Area under Lid Bolts Washers are provided under each of the 36 lid bolts.
The washers have an OD of 13/8" and an ID.of 13/16" so that they fit around the 3/4" bolts and into the 1 " D holes in the lid provided for the bolt heads.
The washers have been
-listed as part 12b on Dwg. 133-1 and are shown on Dwg. 134-la in their proper placement.. Insertion, removal and storage of the washers has been included in revisions to the operating procedures in. Sections 7.1, 7.2 and 7.3.
- 2. The lid bolt hole is shown in Dwg. 134-1 to be located 1.562" from the inside shell, which has a radius of 40.562".
The distance of this hole from the edge of the lid, which has a radius of 40.484", has been revised in Dwg. 135-1 to show a length of 1.484".
j.
- 3. Show lid bolt on Drawings The bolt is shown as part 12a on Dwg. 134-la.
- 4. Revise Diameter of Square Tubing Impact Ring In order to place the center of the inside wall of the tube directly below the center of the outside shell wall, the inside diameter of part B-9 in Dwg. 133-1 has been revised to 82.292".
7
- 5. Update Operating Procedures The operating procedures in Sections 7.1, 7.2 and 7.3 have been revised as follows:
7.1 - Nos. 13,27,30, and 38 7.2 - Nos. 10 and 13 j
7.3 - Nos. 8,11 and 18.
- 6. Acceptance Test The leak test in Section 8.1.3 on page 8.1-1 will be i
carried out at 10 psig..
i
- 7. Deformation Inspection Inspection of part B-9, described in Section 8.2.1.1 on page 8.2-1, will be performed before each shipment.
i 1
m m m-
t 4
Place poly sheeting or equivalent onto bay floor insuring an area 11.
large enough to place both cask and lid onto plastic (84 sq.f t.)
(optional).
Using a hand torque vrench and 5/8" hex setscrew bit 12.
Caution: loosen cask lid bolts. Using rotational ' order as shown in AP-300 i
- socket, torque procedure"(Attachment A), loosen each bolt 1/16 cask " bolt Continue until all of the bolts are loose, indicating turn per pass.
that the lid pre-load has been fully relieved.
This technique helps assure that the cask head backs NOTE:
off the cask flange in an even and parallel manner.
It is important that each bolt be turned by the same Should the cask back off increment during a pass.
unevenly, it may bind, making it necessary to retorque the lid bolts and start over again.
- 13. Remove all 36 of the lid bolts and washers, inspect each bolt to insure screw threads are undamaged, and stow the q
lid bolts and washers appropriately.
Bolts having damaged il screw threads must be appropriately repaired or replaced.
Inspect bolt holes to assure that bolt rotates freely.
5 Remove 4-lh* bolts from top of Rid and install 4-1\\" eye bolts in their place.
Attach lid lifting assembly to lid lifting eye bolts (4-b" shackles 14.
5 and 4-36" long wire rope slings at a rated capacity of 12,000 lbs.)
The lid cables are to remain slack and bear Caution:
no load except when the cask lid is being removed and replaced.
15.
Carefully raise the crane hook so that the 4 lid lifting assemblies becoce taut simultaneously.
Insure that the cask lid lif ts evenly of f the cask. 1.ift the AP-300 cask lid until there is a large enough gap between the body and lid to allow a radiation survey of the internal cavity of the cask.
(Both smear test and dose rate assess-ment).
16.
Have radiation protection perfore the necessary surveys.
After radiation surveys are complete lift the lid the remaining 17.
distance needed and place onto plastic previously laid on bay floor in step #6.
If the crane does not have to be freed for other duties, leave the cask lid suspended in a convenient location.
18.
Inspect cask gasket to insure it is in good condition and t.11 bolt holes line up correctly.
If any imperf ection is discovered, contact ANETCO at Ridgefield Office, (203/431-3358) for advice on continued use of the equipment.
All Inspect the cask cavity to insure that no water is present.
19.
water in cavity must be removed before the liner is installed in Cavity walls must be dried, e.g. by swabbing walls or other cavity.
means.
Revision 9 - 10/24/85 7.1-3
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- 20. Perform rcdistion turv;ys cf th] linar to be 10:d:d b:th d3sa rate and smear test. Decontaminate any external loose contami-nation exterior of liner.
- 21. Af ter radiation surveys are complete and all external loose contamination is removed, lift and insure liner bottom is free of contamination, then place liner into the AP-300 cavity.
- 22. Place any necessary shoring around liner if required to prevent liner from shifting during transport.
- 23. Attach lifting assembly (4 " shackles and 4-25" long wire rope g
slings) with a rated capactiy of 12,000 pounds to lid lif ting eye bolts located near the center of the cask lid, (if removed)..
24.
Retrieve the cask lid from its temporary placement and position it over the top of the cask. If necessary, level the head to insure proper fit.
- 25. lok'ER the cask lid slowly until it is approximately 1" down within 1
the outer cask body.
Align lid seal block on lid with grooved recess in cask body.
l 26.
STOP lok'ERING and take necessary adjustments to the cask lid until the bolt holes are precisely aligned up.
oI
- 27. Lubricate and install washers and bolts 1,2,3, and 4 (refer
- I to AP-300 " Bolt Torque Procedure" drawing Attachment "A" for location of bolts) finger tight.
28.
Resume lok'ERING the cask lid slowly, as the cask lid seats. OBSERVE that the lid lifting assemblies slacken simultaneously.
Tailure of this to occur may indicate that the cask head is. tisa11Ened.
g Remove lid lifting assembly. Remove 4-Ik" eye bolts and replace with 4-Ik" hex bolts.
NOTE: Decontamination activities (if required) may proceed simultan-iously to torquing.
Caution: Radiation streating may emanate froc the lid to cask gap.
Use appropriate care, and use shielding apparatus when necessary.
- 29. Have radiation protection survey the dose rate of the outer surface (of the cask to develop stay time limits during torquing).
Radiation protection should also perfort svipe test of the cask's outer surf ace A
to determine if any loose contacination is present.
External radiation doses and surf ace contacination shall confore with 71.47 andf?1.67(i)respectivelyof10CPR.
30.
Lubricate bsing a suitable lubricant, and install the rei.aining 32 g
washers and bolts finger tight.
31.
Caution: Usint a hand torque vrench only, torque the lid bolts to 22 it. Ibs. in the sequential order shown in AP-300 cask
" Bolt Torque Procedure" drawing (Attachment "A").
32.
Caution: Using a hand torque wrench only, torque the lid bolts to 44 f t. Ibs. in the sequential order shown in AP-300 cask
" Bolt Torque Procudure" drawing (Attachment "A").
Revision 9 - 10/24/85 1
7.1-4
i Y
i.
- 33. Caution: Using a hand torque wrench only, torque the lid bolts to 66 ft. Ibs in the sequential order shown in AP-300 cask
" Bolt Torque Procedure" drawing (Attachment "A").
34.
Caution: Using a hand torque wrench only, torque the lid bolts to 86 f t. Ibs. in the sequential order shown in AP-300 cask
" Bolt Torque Procedure" drawing (Attachment "A").
- 35. Caution: Using a hand torque wrench only, torque the lid bolts to final torque value 110 ft. Ibs. in the sequential order shown in AP-300 cask, " Bolt Torque Procedure" drawing Attachment "A".
t 36.
Caution: Using a hand torque wrench only, use rotational tightening 110 f t. J bs. until all bolts are stable at final torque atlevel (two complete turns around is usually sufficient) as shown in AP-300 Cask " Bolt Torque Procedure" drawing, (Attachment "A").
. NOTE:
Steps 38, 39, and 40 are used only if cask was removed from trailer to facilitate loading of liner.
2l
- 37. Install security lead wire seal.
38.
Attach lifting assemblies (4-2
- shackles and 4-equal length wire g
rope slings with a sinicue rated capacity of 60,000 lbs) to the i
AP-300 cask lifting / tie down eyes located on the side of the outer shell of the cask body.
- 39. Lif t cask up 2 it. and have radiation protection perfore a swipe survey of the cask bottom surface for externally loose contacination.
Decontaminate cask bottoe surf ace if necessary.
a F
Inspect 2 " square energy absorption tube at bottom of cask. If
)
tube is cracked or overall height is deformed to less than 2-1/8",
repair or replace tube.
40.
Lif t and place AP-300 cask within its transport ring located on the trailer.
41.
Replace canvas AP-300 cask cover over AP-300 cask and secure at base.
42.
Retrieve tie-down pins.
43.
Pasten the (4) four tie-down cables to the cask as per AP-300 cask
" Tie-Down Assembly (top view)" (Attachement "B").
Tighten tie-down assembly. Torque each bolt evenly to 100 ft. Ibs.
Revision 9 - 10/24/85 7.1-5
7 o.
44.
Caution: Insure that all cotter pins are bent over to prevent loss.
Have radiation protection perform final survey of AP-300 cask.on trailer in preparation of shipment.
Attach the appropriate labeling and placards.
- 45. -
Insure driver has all necessary forms for shipment and all documents and check lists are completed.
46.
Remove the wheel chocks and release the trailer brakes.
57.-
Perform a final cursory visual inspection of the i
trailer.
48.
Review the check list to ensure that no items were missed.
49.
Notify ANEFCO, Inc. (203/431-3358) transportation manager that the shipment is in route to disposal site.
7.1.4 Specific Addition to ANEFCO AP-300 Loadina Procedure The additional procedures are intended for use when transport of ANEFCO's AP-300 cask is by vessel.
Shippers / users of the AP-300 cask when the cask movement involves transport.by vessel will comply with 49 CFR, Part 176 " Carriage by Vessel" - Subpart M - " Detailed Requirements for Radioactive Materials", a copy of which is shown in Section 7.4.
e 7.1-6 k
f
=
s e
s Procedures for Unloading the Package 7.2 7.2.1 purpose The purpose and intent of this procedure is to define the saf e hand 3ing and the proper radiological controls
'necessary for receiving, unloading and dispatching of the ANEFCO AP-300 cask in a safe and efficient manner.
1 l
Preparations for Unleeding the Package 7.2.2 Prior to receipt of cask, procedures shall be in place in compliance with the instructions noted in 10CTR 20.205.
l t
i Insure truck / cask tie-down devices are secure and 1.
in preper working order.
A3vays use a calibrated hand torque wrench the cover, according to the torque 2.
Caution:
on3y to bolt procedure (Attachment *A*) to prevent damage to bo3ts and cask threads.
4 radiation streaming, hazard Caution: A potentia) exists when the cask is unloaded with the cask head i
3 Use appropriate care, and use not torqued down.
shie3 ding apparatus when necessary.
t If, while detorquing the cask head, it is determined that the head has backed off unevenly and is 4.
binding, the head must be fully retorqued and the Extra care should be detorquing operation restarted. exercised to ensurei If any abnormalities are discovered with the 5.
cash, cask head, head gasket, or the cask equipment, notify ANEFCO at,the Rideefield Officeobtain advice on (telephone 203/431-3358) use of the equipment and follow such advice.
Liftino assemblies for the AP-300 cask Caution:
should be 4-equal le qth wire rope slings with a rcuunr-E.
rated capacity of 80,000 lbs. as per federal specification RR-W-410.
Lifting assemblies for the AP-300 cask Caution:
Jid should be 4-36
- long wire rope slings witn a 7
Einimum rated capacity of 32,000 lbs. as per federalThe wire cables mus 430.
sfan anc$ tion RR-Wf rom the horizontal durino lif tino cific e of 90*
a 2-operations.
7.2-1 Pevision 2 - 11/28/64
7.2.3 Unicading Preendurg I
Ensure that o c:py of the chock list for thio procedure is on hand fcr uso during oil phases of 1,
cask handling.
i Upon receiving the AP-300. cask on site, haverad 2.
the cask and trailer.
Visually inspect the trailer and cask cover for If any is discovered, contact 3.
evidence of damage.
(203/431e8358) for ANEFCO, at Ridgefield Of fice advice on continued use of the equipment.
Position cask and trailer into hand 31ng bay.
4.
Set trai3er brakes and place wheel chocks fore 5.
and aft of the wheels.
four tie-down cables from the cask (4) 6.
Detach the Place the main. pin back into the cask lif t/ tie down point to enable its use as lif ting' point.
side.
g Remove canvas AP-300 cask cover, fold and place in 1
clean area away from loading area to insure it does 7.
not become contaminated, Have radiation protection perform a survey of the cask to complete their arrival survey records.
8.
t Visually inspect the surf ace of the cask for general
.If evidence of 9.
cleanliness and evidence of damage.
damage is discovered, contact ANEFCO at Ridgefield Of fice for advice on continued use of the cask.
j I
NOTE:
J
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a Step 10 is utilized only if cask must be removed fron trailer to facilitate unloading.
Attach lif ting assembly (4-2
- shackles and I
within minimum rated capacity of 10.
9l 4-59" deckus 1
to the AP-300, cask lif tin 9/ tie dow, eyes I
80,000 lbs.)
located on the ' side of the outer shell of the cask body.
f The cask empty weight is 46,710 lbs.
Place poly sheeting or equivalent onto ground floor insuring an area large enough to place both cask 11.
and lid onto plastic ( 84 sq. ft. ) (optional).
l l
l ReviSlon 9-10/24/85
\\
J L
Using o hand tcrque wron'sh cnd 5/8o Coutien:
12.
hex setscrew bit socket, loosen cask lid bolts.
set torque wrench to 110 ft. Ibs.
Using rotational order as shown in AP-300 cask
- Bolt Torque Procedure" (Attachment "A*), loosen each bolt 1/16 Continue until all of the bolts turn per pass.
are loose, indicating that the lid p-e-load has been f ully relieved.
'NOTEt This technique helps to assure that the cask head backs off the' cask flange in an even and g
parallel manner. It is important that each bolt be turned by the same increment during a pass.
Should the lid back off unevenly, it say bino, making it necessary
~.
to retorque the lid bo3ts and start over again.
(
- 13. Remove all 36 of the lid bolts and washers and stow themRem I
appropriately.
f with 4-lh" eye bolts.
l 9
Attach lif ting a'ssembly ( 4-1/2" shackles and 14.
4-36" long wire rope s. lings with a rated capacity of 12,000 lbs. )
CAUTION:
The lid cables are to remain s3ack and bear no load except when the cask lid is being removed and replaced.
Carefully raise the crane hook so that the 4 lid 15.
lifting assemblies become taut simultaneously.
Insure 1
the cask lid lifts evenly off the cask.
Lift the that AP-300 cask 116 until there is a large enouch gap between I
the body and lid to allow a radiation survey of' the internal cavity of the cask.
(Both snear test and dose rate assessment.)
16.
Have radiation protection perform the necessary surveys.
Af ter radiation surveys are complete lif t the lid the 17.
remaining distance needed and place onto plastic If the crane previously laid on the ground in Step 16.
does not have to be f reed for other duties, leave the I
cask lid suspended in a convenient location.
Revision 9 - 10/24/85 7.2-3
e i
18.
Inspect cask gasket to insure it is in good condition and all bolt holes line up correctly.
If any imperfection is discovered, contact ANEFCO at Ridgefield Office, (203/431/3358) for advice on continued use of the equipment.
19.
Perform radiation surveys of the liner to be unloaded both dose rate and smear test.
1 20.
After radiation surveys are complete and all external loose contamination is removed, lift and insure liner bottom is free of contamination, then place liner.intd..
the burial or temporary storage area.
I i
I 7.2-4
q i
7.')
Pmparatien of nn Empty Pnckron int Trnnsport 7.3.1 purpose The purpose and intent of this procedure is to define the safe handling and the proper radiological controls necessary for preparing the empty ANEFCO AP-300 cask for transport, af ter the load has been removed f rom it.
ceneral Preparations for Empty Package Transport 7.3.2 is in good condition prior Insure the cask lid gasket 1.
to shipment.
Insure truck / cask tie-down devices are secure and in 2.
proper working order.
Always use a calibrated hand torque wrench 3.
Caution:
according to the toroue oniv to bolt the cover, iToEedure (Attachment *A*) to prevent damage "to bolts and cask threads.
The requirements of.49 CFR 173.427 " Empty Radioactive Materials 4,
Packaging" shall be complied with where applicable.
I s.
If any abnormalities are discovered with the cask, cask or the cask equipment, notify A C CO E.
head, head gasket, the Eidgefield Office (203/431-335E) obtain advice on and follow such advice.
atcontinual use of the equipment Lifting assen.blies for the AP-300 cask Caution:
7.
should be 4 ' equal len th wire rope with a mirh rated capacity of E0,000 lbs. as per f ederalThe wire cables must always blecifications RE-U-410.at an anale of 90' frcn the horizontal durinc liftire s-7 Liftine asser.blies for the AP-300 cask lid Caution:
should be 4 36* long wire rope slings with a minimum E.
rated capacity of 12,000 lbs. as per federal specification RR-K-410.
Revision 8 - 10/2/85
~.3-1
Prcenourns to Propnro Empty Pnckccja for Trnnsport' 7.3.3 l
J Clean cask interior walls and perform radiation survey 1.
to ensure that all loose contaminaion is removed from Use both dose rate and smear test. Radiation interior walls.
g{confonn with 10CFR71.87(i)(1) for allcwable non-fixed radioactive conts-i--.
1)
Inspect cask gasket to insure it is in good condition l
2.
and all bolt holes line up correctly.
If any imperfection is discovered, contact ANEFCO at Ridgefield for advice on continued use of Office (203/431-3358) the equipment.
Place any. installed shoring around liner if recuired 3.
back into cask.
Attach lif ting assembly (4-1/2" shackles and 4 36
- long wire 4.
12,000 1.bs.)to lid 1l rope slings with a rated capacity of lif ting eye bolt s loca't ed in the etenter of the cask lid, g
(if removed)..
Retrieve the cask lid from its temporary placement and 5.
position it over the top of the cask.
If necessary, l
level the head to insure a proper fit.
i LOWER the cask lid slowly until it is approximately 6.
la down within the outer cask body.
STOP LOWERING and make necessary adjustments to the l
.7.
cask 316 unti) the bolt holes are precisely aligned.
S.
Lubricate and install washers an? bolts 1,2,3 and 4 (refer to q
AP-300 " Bolt Torque Procedure" d:..twing Attachment "A" for location of bolts)
Resume LOWERING the cask Jid slowly, as the cask 9.
'I'id seats.
OBSERVE that the lid lifting assemblies slacken s imul taneously.
Failure of this to occur may indicate that the cask head is misaligned. Rer.ove lid lifting assembly, remove 4-Ik" eye bolts and replace with g
4-Ik" hex bolts.
NOTE:
Decontamination activities (if required) may proceed simultaneously to torquing.
Radiation protection shou 3d perform swipe test of the
~
10.
cask's outer surf ace to determine if any loose contamination is present. Radiation shall confonn with 10CTR71.87(1)(1) for allowable non-fixed radioactive contanination.
i
. 11.
Lubricate using a suitable 3ubricant, and insta33 the l
remaining 32 washers and bolts finger tight.
C Revision 9 - 10/24/85 7.3-2
- l Using s hand torque wrench only, torqu3 th2 Caution
12.
lid bolts to 25 it. Ibs. in the seguential order shown in AP-300 cask
- Bolt Torque Procedure
- drawing (Attachroent 'A*).
Using a hand torque wrench only, torque the 13 Caution:
3bs. in the sequential order shown 316 bolts to 30 it.
Drawing in AP-300 cask
" Bolt Torque Procedure *.
(Attachment 'A").
Using a hand torque wrench only, torque the 14,
Caution:
Ibs. in the sequential order shown lid bolts to 45 ft.
in AP-300 cask
" Bolt Torque Procedure
- drawing (Attachment "A").
Using a hand torque wrench only, torque the Ibs. in the sequential order shown 15 Caution:
lid bolts to 60 it.
in AP-300 cask
" Bolt Torque Procedure
- drawing (Attachment "A").
i Using a hand toraue wrench only, torque Caution:
Jbs.
16.
the lid bolts to final torque value 75 f t.
in the sequentia3 order shown in AP-300 cask i
- Bolt Torque Procedure" drawing (Attachment "A").
1 Using 'a hand torque ' wrench 'only, use 17.
Caution:
75 ft. Jbs. until all bolts are tightening at stable at final torque 3evel (two complete times as shown in AP-300 around is usually sufficient) cask ' Bolt Torque Procedure" drawing (Attachment "A").
NOTE:
Steps 16,19, 20 are used only if cask was removed from trai)er to f acilitate uhloading of liner.
(4-2h" shackles and Attach lifting assemblies s
9 18 4-59' long chokers with a rated capacity of 80,000 Ibs.) to the AP-300 cask lif ting / tie down eyes located on
[
f the side of the outer shell of the cask body.
t Lift cask up 2 ft. and have radiation protbetion s
19 perform a swipe survey of the cask bottom surface Decontaminate for externally loose contamination.
cask bottom surface as necessary.
Fevision 9 - 10/24/85 l
7.3-1
~ _ _ _ _ _ _.. _ _ _. _. _ _ _ _. -. _, _. _.. _ _. _.,,. _ _ _ _...
Y 20.
Lif t Cnd p3Cc3 AP-300 cock within its trcn0 port l
ring leccted on tha troi13r.
21.
om 5
22.
Replace canvas AP-300 cask cover over AP-300 cask and secure at base.
(
23.
Retrieve tie-down pins.
f 24, Fasten the (4) four tie-down cables to the cask as per AP-300 cask " Tie-Down Assembly (top view)"
(Attachment "B").
Tighten tie-down assembly. Torque l
each bolt evenly to 100 f t.
Ibs.
'2 5.
Caution: Ensure that all cotter pins are bent over to prevent loss.
Have radiation protection perform final survey of AP-300 cask on trai3 er in preparation of shipment.
Attach the appropriate labeJing and placards.
'2 6.
Ensure driver has all necessary forms for shipment and all documents and check lists are completed.
27.
Remove the wheel chocks and release the trai3er brakes.
28.
Perform a final cursory visual inspection of the trailer.
i 29.
Review the check list to ensure that no items were missed.
30.
Notify ANEFCO, Inc. (2.03/431-3358) transportation manager that the shipment is en route to generator site.
1
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7.3 4 Revision 5 - 6/10/85
O
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8.0 ACCEPTANCE TESTS AND MAINTENANCE PROGRAM 8.1 Acceptance Tests The following are tests to be performed on the ANEFCO AP-300 cask prior to its first use:
8.1.1 Visual Inspection The cask will be checked to confirm an acceptable exterior finish to assure compatibility with decontamination This inspection will include weld porosity, equipment.
rough surfaces, sharp edges and other conditions to insure realistic decontamination.
Any imperfections that are found will be corrected and the external finish will be repolished prior to painting.
8.1.2 Structural and Pressure Tests 8.1.2.1 Structural Tests The lifting pads will be tested with a load equivalent to 1-1/2 times the expected gross weight (98,567 pounds).
If any deformations of the lifting pads are found, the design will be re-evaluated, pads reinforced as necessary and the tests repeated.
8.1.2.2 Pressure Tests After fabrication is complete, the cavity will be subjected to a pressure test to demonstrate structural integrity.
Each chamber to be tested will be filled with water and cressurized to 10.0 psig.
This pressure s.'ill be maintained
{h for 10 minutes.
No evidence of leakage or mechanical deformation will be accepted during this period.
For the purposes of this test, gaskets other than service gaskets may be used.
8.1.3 Leak Test After the pressure test is complete, the cask will be assembled with a service gasket, and the cavity will be subjected to a leak test.
9
'The cavity will be pressurized to 10 psig g3 with a gaseous mixture containing at least 10% of a test gas to which the leak detector is sensitive.
Testing may be done by using a helium mass spectrometer ck a halogen leak detector if the testing procedure hgs been demonstrated to have a sensitivity coulvalent to I cm (STP) of air per Revision 9 - 10/24/85 8.1-1
e hour at the dif ferential pressure used in the test.
All accessible welded and mechanical joints will be surveyed.
t Any indication of leakage will require repair and retesting of the cask.
I S.1.4 component Testino I
The installed performance of the lid seals and the pressure and gamma test port are verified under the pressure test.
The AP-300 cask does not use valves, rupture disks or l
cooling systems.
B.1.5 shieldine Inteerity Test The manufacturer vill prepare a gamma probe procedure which includes information concerning: (1) the electronic (2) the radiation source and strength, (3) the equipment, calibration standard for both scanning and probing, (4) the grid pittern, (5) the scintillation crystal size, (6) the positioning equipment, (7) the method of reading and recordine the radiation detected, (E) the measuring technique, and (9) ~
the acceptance requirements.
The procedure that is used must be acceptable to the Inspector prior to its application, and he vill be notified so that he may audit the inspection I
if he desires.
The procedure and all the results will be made part of the fabrication record.
Scanning vill be at low, middle and high bands, with sufficient overlap for the full circumference of the cask.
Scanning will l
also be on concentric circles and on radial grid lines.
Results shall verify that no void mnas exist in the sidewall or lid assembly in excess of 0.25" lead.
i The scanning paths shall be reviewed to assure that 1001 of 7
the external surf ace has been examined.
8.1.6 Thermal Acceptance Tests The AP-300 cask will require to reject less than 150 watts.
The calculations show the capability for this service by a large margin.
i 6.1-2 F.evision 2 - 11/IE/E4
a l
8.2 Maintenance Program The maintenance program is established to ensure continued performance of the cask. The cask will be routinely inspected prior to each departure to the reactor site.
In addition, periodic inspections of the cask vill be made requiring testing and/or replacement of. critical components as follows:
8.2.1 Structural and Pressure Tests 8.2.1.1 Structural On an annual basis, the lifting pads will be closely inspected for cracks or other signs of failure.
If signs of failure are found, the lifting, pads will be replaced and load tested. The square tube (Part B-9) will be inspected for cracks and deformations before each O
9 shipment.
If cracked or deformation exceeds 3/8", repair or replace as deemed necessary..
8.2.1.2 Pressure Tests On an annual basis, the cask cavity will be.hydrostatically pressure b
tested to 10,psig~.Should a leak be immd, it will be repaired and the test terun.
8.2.2 Leak Tests Red Devil Casket (or neoprene equivalent) and pressure port plugs tests.
6 on an an ual h' asis. the cent Sn=ent ca'ity "$22 h* P5=r82'd
- 2o Pa58 The pressure level vill be checked over a 10 minute interval anc no pressure 4
loss or evidence of leakage during this period will be accepted. Should a pressure drop be noted, the cause vill be found, repaired and the test An annual leak test G h perfoM ushg a blium leak detector rerun.
sl q with a sensitivity of 1x10'3 ate-cc/sec.
If aeakage in excess of 10 cc/hr is detected, the gasket vill be replaced and the leak test will be repeated until acceptable results are obtained.
8.2.3 Subsystem Maintenance i
There are no subsystems provided for the AP-300 cask which require maintenance.
8.2.4 Valves. Rupture Discs and Caskets on Containment Vessel The gaskets will be visually inspected before and af ter each use of the AP-300 cask. The gaskets vill be tested during the annual pressure and leak tests, described in Sections 8.2.1.2 snd 8.2.2.
The Easkets will be replaced after twelve (12) sequential uses or.if found unsatisfactory 4
during the annual leak test. There are no other components of the AP-300 cask which need maintenance.
Revision 9 - 10/24/85 I
8.2-1 l
Y Ecch of tha 36 closuro bolts will ba incpacted bafore u0a to incuro '
thot-th2 cercw throcds cro intcct, Colts which bind whan manually installed in a test tap shall be repaired or replaced.
1 Each bolt hole will be checked before use by manually checking bolt rotation with a test bolt.
Should test bolt bind, tap hole will be repaired before use.
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8.2.5 shielding Before each shipment, a gamma radiation survey of the cask will be conducted to verify that the cask is within acceptable limits for shipment.
8.2.6 Thermal The 150 watt thermal load capacity does not require thermal tests.
8.2.7 Cask Surface Inspection on an annual basis, the cask will be inspected visually to verify protective coating integrity.
Defects which are noted will be refurbished, in accordance with specification A83-GCPO, to restore the integrity of the protective coating..
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i E.2-2 Revision 1 7/31/84 i
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