ML20195B782
| ML20195B782 | |
| Person / Time | |
|---|---|
| Site: | Paducah Gaseous Diffusion Plant |
| Issue date: | 11/09/1998 |
| From: | UNITED STATES ENRICHMENT CORP. (USEC) |
| To: | |
| Shared Package | |
| ML20195B780 | List: |
| References | |
| NUDOCS 9811160276 | |
| Download: ML20195B782 (7) | |
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USEC-01 Application for United States Nuclear Regulatory Commission Certification Paducah Gaseous Diffusion Plant Revision 32 i
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' USEC-01 Application for United States Nuclear Regulatory Commission Certification i
Paducah Gaseous Diffusion Plant Revision 32 1
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[g APPLICATION FOR UNITED STATES NUCLEAR REGULATORY COMMISSION CERTIFICATION PADUCAII GASEOUS DIFFUSION PLANT REMOVAL / INSERTION INSTRUCTIONS REVISION 32 NOVEMBER 8,1998 l
Remove Page Insert Page Volume 4 List of Effective Pages List of Effective Pages ii, iii ii, iii Section 2.2 Section 2.2 2.2-19 2.2 19 Section 23 Section 23 2.3-20 2.3-20 lo
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l-TSR-PGDP November 8,1998 l
Rev.32 l
G(d SECTION 2.2 SPECIFIC TSRs FOR UF. FEED FACILITIES (C-333-A AND C-337-A) 2.2.4 GENERAL LIMITING CONDITIONS FOR OPERATION l
2.2.4.4 CYLINDER HEATING - CYLINDER ACCOUNTABILITY WEIGIIT LCO 2.2.4.4:
Cylinder accountability (net) weight shall be verified less than or equal to the l
" Max. Fill Limit for Shipment" for cylinders other than tails cylinders and
" Max. Fill Limit for In-Plant Tails Storage" for tails cylinders stated in TSR l
l Section 2.2, Appendix A prior to heating the cylinder.
APPLICABILITY: Modes: 5 i
l ACTIONS:
Condition Required Action Completion Time A.
Accountability A.1 Calculate the cylinder void volume (ullage) at a Prior to entering weight exceeds temperature of 230'F and/or 235'F. Use the mode 5 the Maximum stamped water weight as the basis of the actual Fill Limit for volume of cylinders with certified volumes, or use Shipment fer the minimum design volume (based on all minimum cylinders other design tolerances) for cylinders without certified than tails volumes in the calculation. Determine the category cylinders, or of the cylinder based on the following criteria:
n the Maximum t
4 Fill Limit for Cat. A Void volume 25% at 235'F V
in Plant Tails or Storage for Void volume 23% at 235*F for cylinders filled with tails cylinders.
high purity tails l
Cat. B Void volume 25% at 230*F or Void volume 23% at 230*F for cylinders filled with high purity tails Cat. C Void volume <5% at 230*F or Void volume <3% at 230 F for cylinders filled with high purity tails AND A.2.1 Set the Autoclave Steam Pressure Control System setpoint consistent with the cylinder category per TSR 2.2.3.3 for a Category A or B cylinder. The l
autoclave temperature / pressure controller setpoint shall not be set less than 219.9'F.
OR-A 2.2 Administratively control the Category C cylinder to prevent heating until such time as cold / controlled feeding is re-mstituted as an operating mode.
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TSR-PGDP November 8,1998 Rev.32
/N SECTION 2.3 SPECIFIC TSRs FOR PRODUCT AND TAILS WITHDRAWAL b
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FACILITIES 2.3.4 GENERAL LIMITING CONDITIONS FOR OPERATION 2.3.4.7 CRITICALITY ACCIDENT ALARM SYSTEM (continued)
SURVEILLANCE REQUIREMENTS:
Surveillance Frequency SR 2.3.4.7a-1 Calibrate CAAS system equipment.
Annually l
BASIS:
The CAAS is used to wam plant personnel of a criticality or radiation accident. This system is designed to detect radiation and provide a distinctive, audible signal which will alert personnel to move from those work areas which are potentially affected. The design of the system, three detector modules per cluster, provides protection for criticality events even with partial losses of required equipment. The CAAS also provides detection coverage in most areas by using an overlapping pattem of individual cluster units. Criticality concems with the product withdrawal facility are associated with the movement of fissionable materials. The action items maintain the facility in steady state operations to limit the potential for these concems to se extent possible. Providing another means of coverage (i.e., portable detector / alarm, personal alarm device), restricting operations, or restricting access to the area in the event of the loss of detection will establish protection. [SAR Chapter 4, Appendix A, Section 2.5.1.1.2, SAR 5.2, ANSI /ANS 8.3]
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