ML20196D478
| ML20196D478 | |
| Person / Time | |
|---|---|
| Site: | North Carolina State University |
| Issue date: | 11/30/1998 |
| From: | North Carolina State University, RALEIGH, NC |
| To: | |
| Shared Package | |
| ML20196D474 | List: |
| References | |
| NUDOCS 9812020252 | |
| Download: ML20196D478 (2) | |
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NCSU PULSTAR Technical Specifications i
1.24 Senior Reactor Ooerator: A senior reactor operator is an (SRO) individual who is certified to direct the activities of reactor operators.
i 1.25 Shutdown Margin: Shutdown margin means the minimum shutdown reactivity necessary to provide confidence that the reactor can be made subcritical by means i
of the control and safety systems starting from any permissible operating condition with the most reactive scrammable rod fully withdrawn, the non-scrammable rod (Shim rod) fully withdrawn, and with experiments considered at their most reactive condition, and finally, that the reactor will remain subcritical without j
further operator action.
i-l 1.26 Total Nuclear Peaking Factor:
The factor obtained by multliplying the measured local radial and axial neutron fluence peaking factors.
l 1.27 True Value: The true value is the actual value of a parameter.
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1.28 Unscheduled Shutdown: An unscheduled shutdown is defined as any unplanned l
1 shutdown of the reactor caused by actuation of the reactor safety system, operator I
error, equipment malfunction, or a manual shutdown ir n;sponse to conditions l
l which could adversely affect safe operations. This does not include shutdowns j
which occur during testing or check-out operations.
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1 30 November 1998 9812O20252 981130 I 5
Amendment 13 PDR ADOCK 0500029T P
- PDR,
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j NCSU PULSTAR j
Technical Specifications 3.0 LIMITINO CONDITIONS FOR OPERATION l
l 3.1 Reactor Core Configuration Aoplicability This specification applies to the reactor core configuration during forced i
l convection or natural convection flow operation.
Obiective l
The objective is to assure that the reactor will be operated within the bounds of established Safety Limits.
Specification l
The reactor shall not be operated unless the following conditions exist:
l a.
A maximum of twenty-five fuel assemblies.
I b.
A maximum of ten reflector assemblies of either graphite or beryllium or a combination of these located on the core periphery.
c.
Unoccupied grid plate penetrations plugged.
d.
A minimum of four control rod guides are in place.
l e.
The maximum worth of a single fuel assembly shall not exceed 1.59%Ak/k (1590 pcm).
f.
The nuclear total peaking factor in any fuel assembly shall not exceed 2.92 4
Bases Specifications 3.1(a) through 3.1(d) require that the core be configured such that there is no bypass cooling flow around the fuel through the grid plate.
i Specification 3.1(e) provides assurance that a fuel loading accident will not result j
in a Safety Limit to be exceeded as discussed in SAR Section 13.2.2.1.
Specification 3.1(f) provides assurance that core hot channel power are bounded by the SAR assumptions in Appendix 3-B.
30 November 1998 12 Amendment 13