ML20066F348
| ML20066F348 | |
| Person / Time | |
|---|---|
| Site: | University of Lowell |
| Issue date: | 01/15/1991 |
| From: | Beghian L MASSACHUSETTS, UNIV. OF, LOWELL, MA (FORMERLY LOWELL |
| To: | Michaels T Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20066F350 | List: |
| References | |
| NUDOCS 9101230272 | |
| Download: ML20066F348 (2) | |
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$<w$ 1JJacktJcNs 0/854 I (508) 452 5000- 3 January -15,1991 Docket No. 50-223 Reactor R-125 Document Control Desk U.S. Nuclear Regulatory Commision Washington, DC. 20555 Gentlemen, ,
The University of Lowell ~ Reactor wishes' to submit the following changes ~ to our Reactor License-(R-125) Technical--
Specifications These changes -are as follows:'
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- l. Change the description of 3.3, ReactoriSafety . System', page IV-18 concerning the . function of thel Reactor; Period from:
" Automatic reactor scram" with <3 sece period, &-
Reg Rod prohibit <l5 se'c period" to:
" Automatic reactor scram with; <3 sec period, &
control blade inhibit with < 15 -sec period.~"
The Regulating Rod has. never 'had- any automatic safety features and, in fact, is not considered 'part of the safety system..This is a description error missed- when we rewrote. our license in 1984.
This automatic withdrawal inhibit .has always -been a function' of the l_ control blades, which are part of the Reactor- Safety System.
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- 2. Remove the " Pool Water Level" from the list of measuring channels required in section 3.2 Reactor Instrumentation, page IV-17. The pool water level channel is a' float operated device which causes a reactor scram when the pool is below a certain level. Since it is required by Section 3.3 Reactor ,
Safety System, page IV-19, and because it is not a measuring channel, it should. be removed - from this section. >
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-, .,' 1 These' changes l have- been: reviewed by the- Universi.ty. of Lowell-
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__ Reactor Ssfety' Subcommittee and th'ey have determ'.ned that these-changes do not ;c_onstitute .a reduction in- reactor ~ safety 'and actually revert to the ' original _-intent _ of these. systems.
Sincerely yours,
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- Dr,l. Leon Beg ian, . _
Assoc;1Vice President. i for'.' Research -
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