ML20204H837

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Rev 2 to Procedure RDW 5.10, Selecting Packages for Radioactive Matl Shipments
ML20204H837
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 05/11/1984
From:
WISCONSIN ELECTRIC POWER CO.
To:
Shared Package
ML20204H448 List:
References
RDW-5.10, NUDOCS 8411120397
Download: ML20204H837 (6)


Text

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7- RDw 5.10 MINOR

' Revision 2 05-11-84 SELECTING PACKAGES FOR RADIOACTIVE MATERIAL SHIPMENTS

1.0 REFERENCES

1.1 10 CFR Part 71 1.2 49 CFR Parts 100 to 178 1.3 Health Physics file HP 2.6, Package QA Documents 1.4 Radioactive Material Handling Manual 1.5 IE Information Notice 80-32 and 80-32, Revision 1 2.0 DEFINITIONS (49 CFR 171.8) 2.1 Ove rpack Overpack means an enclosure not intended for reuse that is used by a single shipper to consolidate two or more packages for convenience in handling. This definition does not apply to shielded containers if the shielding is required to reduce radiation levels to allowable limits. -

For example, suppose four 55-gallon drums each meeting DOT Specifi-cation 7A and each containing a Type "A" quantity of material were to be shipped. The drums could be shipped separately. The drums could also all be put in a large wooden box and shipped even though the box was not qualified as a Type "A" package. The box is an overpack in this case and is not intended or expected to provide containment of the radioactive material. The drums provide the containment.

Occasionally, a 55-gallon drum will be placed within an 83-gallon drum for shipment. An 83-gallon drum containing a single 55-gallon drum does not constitute an overpack. The 83-gallon drum is merely a strong, tight container and must be marked " Radioactive LSA, UN2912."

A truck is never an overpack since it is intended to be reused.

2.2 Package or Outside Package This means a packaging plus its contents.

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  • '* RDW 5.10 Page 2 2.3 Packaging This metns the assembly of one or more containers and any other ccaponents necessary to assure compliance with the minimum packaging requirements of Federal regulations. It does not include overpacks.

For example, an empty 55-gallon drum is a " packaging". When the drum is filled, it becomes a " package", assuming that it meets radiation limits.

2.4 Strong Outside Container or Strong Tight Container This means the outermost enclosure which provides protection against the unintentional release of its contents under conditions normally incident to transportation. A strong wooden box can fit this definition.

2.5 Liner A liner is a large container intended to be used as an inner containment within a shielded shipping cask.

3.0 QUANTITY LIMITATIONS OF PACKAGINGS 3.1 There are three levels of packages. Listed in order from minimum to maximum capability, they are: strong tight container, Type A packages (DOT Specification 7A), and Type B packages. A package can be used at less than its full capability; i.e., a package authorized for use in transporting Type A quantities can be used as a strong tight container. Whenever a shielded shipping cask is used, review its Certificate of Compliance to be sure it is properly applied.

Refer to file HP 2.6 for the certificate.

3.2 Container Construction There are 7 types of containers used at PBNP: wooden boxes; 30-gallon j steel drums; 17H steel drums, 55-gallon; 83-gallon steel drums; steel

liners; polyethylene liners; shielded shipping casks.

3.3 Strong Tight Containers 3.3.1 Wooden boxes, 30-gallon steel drums and 83-gallon steel drums may be used as strong tight containers only. Liners and 55-gallon drums may also be used as strong tight containers. .

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RDW 5.10 Page 3 3.3.2 A strong tight container may be used to ship only the following quantities of radioactive material:

a. Limited quantity
b. Radioactive devices
c. LSA material if less than Type "B" quantity and only when shipped in an exclusive use vehicle.

3.4 Type "A" Quantity Package (DOT Specification 7A) 3.4.1 17H steel drums, 55-gallon size, and steel liners, if certified as 3 Type "A" package, may be used to meet DOT Specification 7A. These drums may weigh no more than 840 pounds when loaded.

3.4.2 In addition to the quantities authorized for a strong tight container, a 17H drum, 55-gallon size, or Type "A" steel liner may also be used to ship the following quantities:

a. LSA material, not greater than Type "A" quantity, shipped in a nonexclusive use vehicle.
b. Type "A" quantities.

3.5 Shielded Shipping Casks (> Type "A" Package) 3.5.1 These packages are licensed by the NRC. Before they can be used to transport radioactive materials, special documentation must be obtained. See pror edure RDW 5.9, Radioactive Material Shipping Package Documentation, to determine which documents are required.

3.5.2 Check file HP 2.6 to verify that the documents have been obtained. If the required documents are not on file, the cask may be used only as a strong tight container.

3.5.3 If the required documents specified in procedure RDW 5.9 are l on file, a shielded cask is authorized to transport radio-active material quantities listed in Sections 3.3.2 above.

Depending on the limitations of the particular cask Certificate of Compliance, it may also be authorized to transport the following quantities:

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RDW 5.10 Page 4

a. Type "A" quantities
b. LSA material in greater than Type "A" quantities
c. Type "B" quantities
d. Highway route controlled quantities NOTE: ALWAYS CHECK THE CERTIFICATE OF COMPLIANCE BEFORE USING A SHIELDED CASK. DIFFERENT CASKS ARE AUTHORIZED TO TRANSPORT DIFFERENT QUANTITIES.

4.0 SELECTING A SHIPPING PACKAGE 4.1 Determine the quantity in Curies of radioactive material to be packaged.

4.2 Determine whether the package will be shipped via exclusive use or nonexclusive use vehicle.

4.3 Using the table below, select the proper packaging.

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7 kDW 5.10 Page 5 TABLE 1 SHIPPING PACKAGE SELECTION CHART Motor Vehicle Use Acceptable Restrictions Packagings

. Quantity to (See 4.3.1 & Minimum Required (See 4.3.3 &

be Packaged 4.3.2 below) Packaging Category 4.3.4 below)

Limited Quantity None Strong, tight cor.ainer a. Wood box Radioactive Device b. 30-gal steel drum

c. 55-gal steel drum
d. 83-gal steel drum
e. steel liner
f. cardboard box Type "A" Shielded vehicles: Type "A" a. 17H steel drum,55-gal (Maximum loaded weight-840 pounds) exclusive usc b. Type A steel liner Others: None c. Liner or drums inside a shipping cask i
  • Type "B" Exclusive use Type "B" Liner or drums inside a shipping cask Highway Route Controlled Exclusive Use Type "B" Liner or drums inside a shipping cask LSA material, not None Type "A" a. 17H steel drum,55-gal greater than Type b. Type A steel liner "A" quantity LSA material, not Exclusive use Strong, tight a. Wood box greater than container b. 30-gal steel drum Type "A" quantity c. 55-gal steel drum
d. 83-gal steel drum
e. steel liner

, f. liner or drums inside a shipping cask 4

LSA Material Exclusive Use Variable, See liner or drums inside i greater than Section 4.3.3 below a shipping cask i Type "A" quantity ,

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RDW 5.10 Page 6 4.3.1 Radioactive material or devices in greater than limited quantities may not be transported in commercial passenger carrying vehicles.

4.3.2 Packages put on vehicles must conform to the radiation and contamination limits specified in RDW 5.7.

4.3.3 Shipping casks have specific criteria for use which vary according to the cask model. Refer to the appropriate Certificate of Compliance in file HP 2.6 for specific information regarding the cask's package category and acceptable contents.

4.3.4 Liners for use inside a cask may be either steel or polyethylene. In some cases, such as the CSN 6-75 cask operated by Chem-Nuclear Systems, liner must be a certified Type "A" package. Refer to file HP 2.6, procedure RDW 5.9 and burial site criteria to determine which liner is appropriate for a given case.

4.3.5 Refer to file HP 2.6 and procedure RDW 5.9 to determine if a liner is certified as a Type "A" package.

4.4 If a shipping cask is selected, estimate the dose rate at the cask surface and 2 meters (6.6 feet) from the surface. Contact the Nuclear Plant Specialist or Engineer assigned to radwaste for assistance. If estimated dcse rates are above 200 mR/ hour contact or 10 mR/ hour at 2 meters (6.6 feet), select a different cask and make a new radiation level estimate.

Packagings other than those shown in Table 1 above may be used with 4.5 approval from the Superintendent - CHP.

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