ML19224B089
| ML19224B089 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/30/1977 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| 1683, TM-0102, TM-102, NUDOCS 7906140030 | |
| Download: ML19224B089 (4) | |
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TMI DOCUFENTS
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DOCUMENT NO:
COPY MADE ON h
OF DOCUMENT PROVIDED BY METROPOLITAN EDISON COMPANY.
Wilda R. Mullinix, NRC
.h 7906140030 186 1.57 O
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Revision I
1683 09/30/77
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THREE MILE ISLAND NUCLEAR STATION STATION HEALTH PHYSICS PROCEDURE #16 "
hat 1DLitiG 0F CONTAMIf4ATED VACUUM C A RS CO M O__:D COPY Table of Effective Pages P soe Date Revmon Pene Date R evision Pace Date R evision 1.0 09/30/77 1
26.0 51.0
,' 0 12/14/73 0
27.0 52.0 S.0 12/14/73 0
28.0 53.0 4.0 29.0 54.0 5.0 30.0 55.0 6.0 31.0 56.0 7.0 32.0 57.0 8.0 33.0 58 0 9.0 34.0 59.0 10.0 35.0 60.0 11.0 36.0 61.0 12.0 37.0 62.0 13.0 38.0 63.0 14.0 39.0 64.0 15.0 40.0 65.0 16.0 41.0 66.0 17.0 42.0 67.0 18.0 43.0 68.0 19.0 44 0 69.0 20.0 45.0 70.0 21.0 46.0 71.0 22.0 47.0 72.0 23.0 48.0 73.0 24.0 49.0 74.0 25.0 50.0 75.0 Unit 1 Staff Reco me ds Approval Unit 2 Staff Reco en aproval Approval
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Date Approval Date Cogr[ izar'tt/Dlpt.I ead Cognilnt Mr/. Htbd H
Unit 1 PORC Recommends Approval Unit 2 PORC Recommends Approval 0
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1683 Revision 1 09/30/77 THREE MILE ISLAND NUCLEAR STATION l
r-T'Gk htALTH PHYSICS PROCEDURE - 1683 I
HANDLING OF CONTAMIt'ATED VACUUM CLEANERS 1.0, PURPOSE This procedure outlires the proper use and maintenance cf va uum cleaners used in contaminated areas.
2.0 DISCUSSION Special vacuum cleaners will be required for use in contaminated areas. Once these cleaners have been used, they become a source of external exposure and possible airborne contamination.
Specific guidelines are required to prevent unnecessary exposure of personnel during the use and/or maintenance of these vacuum cleaners; as well as special precautions to prevent airborne contamination during the routine changing of filters (or bags) and emptying the collection reservoir of these units.
Radiation problems could also arise if the filter or collection bag is punctured while the vacuum cleaner is in service.
Periodic surveys by the Radiation Protection personnel will be required to ensure proper operation of these vacuum cleaners.
3.0 REFERENCES
TMI Radiation Protection Manual.
4.0 EQUIPMENT 4.1 Protective clothing.
4.2 Full face respirator.
4.3 New vacuum cleaner filter or bag.
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L683 12/14/73 Revision 0 5.0 OPERATING INSTRUCTIONS 5.1 Cleaning and assembling of vacuum cleaners shall be performed under the surveillance of Radiation Protection personnel.
5.2 Personnel performing the cleaning operation shall be dressed in full protective clothing with full face respirator.
5.3 Only filters or bags that have been inspected and approved by the Radiation Protection Supervisor will be used.
5.4 The motnr assembly or lid to collection container shall be sealed with masking tape tc ensure that the cleaner is not leaking.
5.5 Radiation Protection personnel shall survey and properly tag vacuum cleaners during routine surveys of areas in which vacuum cleaners are located.
If contamination level of an area in which the vacuum cleaner is being used is such that the radiation level of the vacuum cleaner may exceed the allowable limits set forth in Item 5.6, the vacuum cleaner shall be surveyed inter-mittently and at the end of a clean-up operation.
5.6 If the contact radiation level of the vacuum cleaner exceeds 25 mR/hr, the cleaner will be taken to a decontamination facility or a designated control area for cleaning.
5.6.1 The 25 mR/hr may be exceeded if necessary to complete clean-up of a contaminated area in which it is being used.
If, under these conditions the contact radiation level of the collection contain-ers exceeds 50 mR/hr, the vacuum cleaner shall be removed from h
service until cleaned.
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1633 12/14/73 Revision 0 5.7 Disassembly of Vacuum Cleaners 5.7.1 Personnel who disassemble the vacuum cleaner will be in full protective clothing dress with a full face respirator.
5.7.2 In an area designated for clean-up--remove the motor housing or cover assembly and place it in a plastic bag.
5.7.3 Tape a plastic bag around the opening of the collection con-tainer and turn it over slowly to remove contaminated material.
Let dust settle before removing plastic bag and sealing it.
5.7.4 Radiation Protection personnel shall survey the contaminated bag and tag as required. Contaminated material shall be disposed of in accordance with Radiation Pratection procedures.
5.7.5 Radiation Protection pirsonnel will survey the outside of the vacuum cleaner for contamination.
5.7.6 The above cleaning procedure shall be followed on all vacuum cleaners that have been used in contaminated areas, regardless of the radiation level emanating from the unit and regardless of the type of maintenance to be performed.
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