ML19209C505
| ML19209C505 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 09/20/1979 |
| From: | William Jones OMAHA PUBLIC POWER DISTRICT |
| To: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| NUDOCS 7910160033 | |
| Download: ML19209C505 (3) | |
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Omaha Public Power District 1623 HARNCY a OMAHA, NEURASKA 60102 e TELEPHONE 536-4000 AREA CODE 402 September 20, 1979 Mr. K. V. Seyfrit, Director U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region IV 611 Ryan Plaza Drive Suite 1000 Arlington, Texas 76011 Re feren ce :
Docket No. 50-285
Dear Mr. Seyfrit:
The Omaha Public Power District received IE Bulletin 79-18, dated August 6,1979, requesting information in regard to energency evacuation alarm capabilities at the Fort Calhoun Station.
In response, the in-formation requested is attached.
Sincerely, l
i..
v' f)d b e
e W. C.l Jones Division Manager Production Operations WCJ/KJM/BJH:jnm Attach.
Director, Office of Inspection & Enforcement cc:
U. S. Nuclear Regulatory Commission Division of Reactor Operations Inspection Washington, D. C.
20555 LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, H. W.
Washington, D. C.
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AJPACIIfEIT Request 1
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Detemine whether current alarm systems and evacuation announcement systens are clearly audible or visible throughout all plant areas with e=phasis on high-noise areas.
Detemination in high-noise areas must be made with the maximum anticipated noise level.
Response
A special procedure, "Gai-tronics and Nuclear Emergency Alarm Aud-ibility Test", was performed over the period September 8,1979, to September 12, 1979 The maximum anticipated noise level in each area was considered in evaluating need for more alams.
Four areas in the plant were detemined to be inaudible areas.
(See Table 1 for a list of locations of inaudible areas and comments. )
Request 2 Detemine what corrective action is necessary to assure that areas identified as inaudible areas in 1 above vill receive adequate audible /
visual evacuation signals.
In areas where adequate audible / visual evacuation signals cannot be assured by hardware changes, detemine what additional administrative measures are necessary to assure per-sonnel evacur. tion.
Response
In order to ensure that the areas listed above as inaudible vill receive adequate audible / visual signals, a conspicuous flashing light, similar to those used in the turbine building in high-noise areas, in each location listed in the response to request 1 above vill be installe d.
The corrective actions specified will be completed and documented by December h, 1979 Inaccessible areas will be tested in a similar fashion. Such testa vill be completed by the end of the upcoming re-fueling shutdown, scheduled to comence January 1,1980.
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Table 1 1.
Diesel Generator Roon No. 1 Co=.ent: Vnile the Nuclear Emergency Alarm is not audible in this area, there are two gal-tronics telephone / speakers which are audible when the diesel generator is not_ in operation.
2.
Diesel Generatcr Room Ho. 2 Comment:
Same as 1. above.
3 Safety Injection Pump Room No.1 Comment: While the Nuclear Emergency Alarm is not audible in this area, there is a gai-tronics speaker which is audible when the safety injection pumps are not in operation.
h.
Safety Injection Pump Roon No. 2 Content:
Under conditions when the pumps are not in operation, both the gai-tronics speaker and the Nuclear Emergency Alarm are audible.
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