ML20196L531
| ML20196L531 | |
| Person / Time | |
|---|---|
| Site: | 07109086 |
| Issue date: | 06/22/1988 |
| From: | HITTMAN NUCLEAR & DEVELOPMENT CORP. (SUBS. OF HITTMAN |
| To: | |
| Shared Package | |
| ML20196L527 | List: |
| References | |
| STD-R-02-006, STD-R-02-006-R04, STD-R-2-6, STD-R-2-6-R4, NUDOCS 8807070568 | |
| Download: ML20196L531 (14) | |
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O SAFETY ANALYSIS REPORT FOR THE HN-190-1 RADWASTE SHIPPING CASK STD-R-02-006 Revision 4 Referencing 10 CFR 71 Type "A" Packaging Regulations O
Westinghouse Radiological Services Division 1256 North Church Street Noorestown, New Jersey 08057 8807070568 880623 PDR ADOCK 07109006 C
PNu 0347A:65-0217BS
JUN 2 2 teco STD-R-02-006 r~ s 7.0 OPERATING PROCEDURES This section describes the procedures to be followed in using a HN-190-1 cask.
Any maintenance activity, such as inspections, lubrication, gasket replacement / repair, etc. described in this section is described in more detail in Section 8.2, General Maintenance Program.
7.1 Liftina 7.1.1 The cask shall always be lifted using the three (3) provided lifting lugs only. The lifting lugs are the vertically oriented lugs on the sides of the cask spaced at 120' around the cask circumference.
7.1.2 The primary cask lid lifting lugs shall only be used to lift the cask lid (primary cask lid with shield plug installed) or the primary cask lid alone. The shield plug lifting lug shall only be used to lift the shield plug.
7.2 Removal / Installation of Cask Lids 7.2.1 Removal of the Primary Cask Lid 7.2.1.1 Remove the primary cask lid hold-down stud nuts.
7.2.1.2 Remove the three (3) primary cask lid lifting lug covers, O
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JUN 221988 STD-R-02-006 b
v 7.2.1.3 Using the three (3) primary cask lid lifting lugs, suitable rigging and exercising caution in the handling of the primary cask lid due to possible contamination of the underside of the lid, remove the primary cask lid.
7.2.2 Removal of Shield Plua 7.2.2.1 Remove the shield plug hold down stud nuts.
7.2.2.2 Remove the shield plug lifting lug cover.
7.2.2.3 Exercising caution due to the possible contamination of the underside of the shield plug, remove the shield plug.
(VQ 7.2.3 Installation of Primary Cask Lid 7.2.3.1 Prior to installation, inspect gasket for the following:
a.
Gasket fully secured to the cask, b.
Gasket not cut, ripped or gouged.
c.
Gasket is resilient.
d.
Gasket is free of debris, dirt and/or grease.
7.2.3.2 Prior to installation, verify that the date of gasket change reflects compliance with the annual change requirements for the cask.
O o m A:ss-c m sa 7-2
JUN 2 21983 STD-R-02-006 Od 7.2.3.3 Using the three (3) lifting lugs on the primary cask lid and' suitable rigging, lift and place lid on cask using alignment guides to ensure proper positioning. Take care not to damage gasket.
7.2.3.4 Install the primary cask lid stud nuts and torque from 190 ft-lbs to 200 ft-lbs.
7.2.3.5 Install the three (3) prim &ry cask lid lifting covers.
7.2.4 Installation of Shield Plug 7.2.4.1 Prior to installation, inspect gasket for the following:
a.
Gasket fully secured to the primary lid.
b.
Gasket not. cut, ripped or gouged.
c.
Gasket is resilient.
i d.
Gasket if free cf debris, dirt and/or grease.
7.2.4.2 Prior to installation, verify that the date of gasket change reflects coupliance with the annual change requirements, i
7.2.4.3 Using the one (1) lifting lug on the shield plug and l
suitable rigging, lift and place lid into the opening on i
the primary lid.
Use alignment pins to ensure proper positioning. Take care not to damage gasket.
l 7.2.4.4 Install the shield plug stud nuts and torque from 35 ft-lbs to 40 ft-lbs.
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JUN 2 21983 STD-R-02-006-U 7.2.4.5 Install the shield plug lifting lug cover.
7.3 Cask loadina 7.3.1 Survey empty cask and the vehicle carrying it to determine the loose and fixed contamination levels.
Limitations pertaining to contamination levels shall be defined by regulations imposed on the user by the applicable governing bodies.
7.3.2 Inspect primary cask lid end shield plug fasteners to ensure thet all are present and undamaged.
7.3.3 Check to ensure that primary cask lid (and shield plug) lifting lug covers are with the cask.
OV l
l 7.3.4 Remove primary cask lid in accordance with Section 7.2.1.
l 7.3.5 Remove shield plug in accordance with Section 7.2.2, if required.
7.3,6 Inspect interior of cask for standing water.
N_QII:
Water must be removed prior to shipment i
i 7.3.7 Inspect interior of cask for obstructions to loading.
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7.3.8 Inspect interior of cask for defects which might affect the integrity l
of shielding afforded by the cask.
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JUN 2 21988 ST0-R 02-006 7.3.9 If loading drums on drum pallets, proceed as follows:
a.
Load drums on each pallet.
b.
For maximum shielding, position higher dose rate drums in the center of the pallet and toward the front and rear of the trailer.
c.
Place slings around or along side drums to prevent pinching or damage to the slings by the lids or top pallet in the Cask.
d.
Place the loaded pallets in the cask.
e.
For the cask lids removed for the loading process, inspect cask lid gaskets, install lids and secure as described in respective sections.
7.3.10 If loading preloaded containers, proceed as follows:
a.
Ensure all lids, plugs, caps, etc. are installed on container.
b.
Place container into the cask.
c.
Install shims / shoring between container and cask as necessary to secure the container in position.
d.
For the cask lids removed for the loading process, inspect l
cask lid gaskets, install lids and secure as described in respective sections.
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7.3.11 If loading into container inside cask, proceed as follows:
i a.
Place empty' container in the cask.
b.
Install shims / shoring between container and cask as necessary to secure the container in position, c.
Inspect primary cask lid gasket,. install and secure primary lid as described in respective section, d.
Load the waste into the container through the shield plug
- opening, e.
Install the liner lid, plugs, caps, etc. onto the container, f.
Inspect shield plug gasket, install and secure shield plug as described in respective section.
7.3.12 Install tamper-proof seals on the cask lids.
7.4 Removal / Installation of Cask from Trailer 7.4.1 Cask Removal Trailer 1.4.1.1 Loosen ratchet binders / turnbuckles as necessary to remove i
pins from shackles at the cask end of tiedown system, j
7.4.1.2 Remove pins from shackles.
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JUN 22 !988 STD-R 02-006 O
V 7.4.1.3 Vsing three (3) cask lifting lugs and suitable rigging, lift cask off trailer.
tiqll:
Do not use cask lid lifting lugs to lift the cask.
7.4.2
[nk Installation on Trajlgr 7.4.2.1 Using three (3) cask lifting lugs and suitable rigging, lift cask and placc. cask in proper position within the shear ring or blocks.
ILQII:
Do not use cask lid iifting lugs to lift the cask.
7.4.2.2 Inspect tiedowns and shackles on the cask and trailer for cracks and wear which would affect their strength.
7.4.2.3 Inspect tiedown cables to ensure they are not damaged (crimped, frayed,etc.)
7.4.2.4 Inspect tiedown ratchets / turnbuckles to ensure they are in proper working condition.
7.4.2.5 Install a shackle through the cask end of each tiedown cable and attach the shackle to the cask tiedown lug.
7.4.2.6 Tighten tiedown ratchets / turnbuckles as necessary to secure cask on trailer.
7.5 [pntainment Penetration Seals
)
If the tamper-proof seal on the cask cavity drain port plug has been removed, O
t o m A:ss-o m sa 7-7 i
JUN 2 2 lcE8 STD-R-02-006 the plug must be removed and properly reinstalled.
Installation of the plug used to seal the cavity drain port shall be done using a pipe joint sealing ompound.
The plug shall be torqued to 25 ( 2) ft-lbs.
Immediately after installation of the plug a new tamper-proof seal shall be installed.
7.6 Preparation for Shioment 7.6.1 Perform radiation surveys of cask and vehicle, including a determination of surface contamination, to ensure compliance with 10CFR71.47 and 10CFR71.87 and complete the necessary shipping papers, certifications, and checklists.
7.6.2 Placard vehicle and label cask as necessary.
O 7.7 Receivino a Loaded Cask The receiver, carrier and shipper are to follow the instructions of 10CFR20.205 when a package is delivered.
These instructions include surveying the external surface of the cask for radioactive contamination.
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f 0347A:65-021788 7-8 l
JUN 221988 STD-R-02-006
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8.2 General Maintenance Proaram 8.2.1 General Maintenance and repair of the HN-190-1 cask is controlled by the l
Westinghouse Radiological Services Division Quality Assurance l
program. The casks and trailers annually undergo three (3) routine techni>.al inspections.
These inspections are proceduralized in cask maintenance and repair procedures.
8.2.2 Gaskets 8.2.2.1 Gaskets shall be inspected for resiliency and proper installation.
O 8.2.2.?
Gaskets which cannot be sealed or are obviously damaged I
must be replaced in their entirety.
Damage may include cuts, nicks, chips, indentations, or any other defect apparent to the naked eye which would affect sealing integrity.
Removal of the gasket, preparation of the lid surfaces, and gasket installation shall be performed in accordance with the cask maintenance and repair procedures.
I 8.2.2.3 All gaskets shall be replaced after 12 months of installation on the cask regardless of apparent condition or cask usage.
8.2.2.4 A leak test, according to Section 8.1.3, shall be performed I
at least once within the twelve (12) months prior to any
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JUN 2 2 !cco STD-R-02-006 O)
L 8.2.2.5 Any painted surface in contact with the gasket shall be i
maintained in good condition.
Any loose, chipped, or scratched painted surface which would affect seal integrity shall be repaired prior to further cask use.
8.2.3 Welds 8.2.3.1 All welds have been completely checked in accordance with ASME Code requirements using visual, magnetic particle and radiographic methods during fabrication. The cask drawing delineates these inspections.
In-use inspections should not be required unless the cask has been involved in an accident or has been lifted improperly or in an overloaded condition.
In those cases, inspection shall include the O) following:
L a.
Drop or accident: All accessible cask body and lug welds welds shall be magnetic particle inspected in accordance with ASME Code Section III, Division I, Subsection NB, Article N8-5000 and Section V, Article 7.
These inspections may be performed with the pair'ed finish in place.
b.
Improper or overload lift: All welds on the cask primary or shield pidg which were in use at the time of the improper o overload lift shall be magnetic particle ins:e(.ed per the requirements delineated above.
8.2.3.2 Whenever welding to the cask is required it shall be performed utilizing weld procedures and welders qualified in accordance with ASME Code Section IX requirement.
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....JUN'2 2 (988 STD-R-02-006
.LJ 8.2.4 Studs and Nuts 8.2.4.1 All studs and nuts shall be inspected during each removal of the primary cask lid and shield plug and superficially with each cask use.
Replacement shall be made if the following conditions are present:
a.
Deformed or stripped threads.
b.
Cracked or deformed hexs or nuts.
c.
Elongated or scored grip length area on studs.
d.
Sever rusting or corrosion pitting.
8.2.4.2 In general, all studs and nuts shall be inspected for damage at least once a year under normal usage conditions and replaced when the conditions delineated in Step 8.2.4.1 are present.
8.2.5 Painted Surfaces l
8.2.5.1 Painted surfaces shall be cleaned using standard commercial equipment, chemical solutions, and procedures.
I 8.2.5.2 Chipped or scratched surfaces which could affect seal integrity shall be repainted prior to further cask use.
Other chipped or scratched surfaces shall be repainted at the time of the next routine technical inspection referenced in Section 8.2.1.
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JUN 2 21988 STD R-02-006 1
8.2.5.3 Guide stripes and cask identification markings shall be repainted when they are chipped, peeled off, faded or illegible.
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