ML20084D285
| ML20084D285 | |
| Person / Time | |
|---|---|
| Site: | Dresden, 05000000 |
| Issue date: | 11/28/1973 |
| From: | Worden W COMMONWEALTH EDISON CO. |
| To: | Oleary J US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084C998 | List: |
| References | |
| 8612, 875-73, NUDOCS 8304110037 | |
| Download: ML20084D285 (2) | |
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C:mmhalth Edison O
PDR ADOCK 0500023 8QQ 3 o CUPi BENT REGION i L_ O O l j Mr. J. F. O' Leary, Director November 2,8, 1973 It was also determined that 12 other snubbers in the drywell i had low oil level indication on the accumulator. However, the oil level was not low enough to consider them inoperable. It is believed that the low oil level is due to small leaks, but because the leakage is small there is no evidence of fluid leaks or loss of overall integrity. Ten (10) of these twelve (12) had satisfactory oil level during the previous inspection. Two (2) had low oil at that time. If these two snubbers ] exhibit low oil level during the next inspection, they will be overhauled. I An inspection of eleven (11) Grinnell snubbers revealed all were ^ operable. They had sufficient oil levels except for one (1) on the 2 isolation condenser return line to the reactor which had a low oil level. All thirteen (13) mentioned snubbers in this report that exhibited low oil level were filled prior to resuming power operation on November 15,1973 i The referenced letter also requested infomation describing snubber temperature and radiation environment at full power. Radiation dosimeters were placed at 33 different locations in Unit 2 drywell from May 19, 1971, to February 26, 1972. During these 2g3 days of nomd plant operation, the ma -inum doce measured was 66.26 x 10 Ram of game.a. Extrapolating 3 this to an annual period beccnes approximately 85.5 x 10 Rem per year. Thermocouples were placed on four (h) snubbers in the Unit 2 drywell on August 12, 1973. They were located in a representative high tc:nperature area. Since that tine the highest temperature recorded has been 2000F. Sincerely, U.. b W. P. Worden Superintendent WPd:1s 2 .