ML19354D987
| ML19354D987 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 01/11/1990 |
| From: | Norelius C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Johnson I COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 9001250145 | |
| Download: ML19354D987 (3) | |
Text
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JAN 111990 L
Docket No. 50-254 Docket No. 50-265 Comonwealth Edison Company i
ATTN:
- 1. M. Johnson EP Director-P. O. Box 767
.l Chicago,'IL 60690-0767
-l Gentlemen:
SUBJECT:
COST ESTIMATE FOR THE INSTALLATION OF ADDITIONAL CIRCUITRY AT THE QUAD CITIES NUCLEAR POWER PLANT'S E0F BUILDING FOR CONTINGENCY' TELECOMMUNICATIONS'
-l Your letter dated' April 14,1987,. addressed to Mr. A. B. Davis from I. M. Johnson, responded to our request for a cost estimate for the _
l installation of NRC contingency telecomunication equipment at the Quad Cities site.
Because your estimate of $5,000, for the E0F and $5,000: for the meteorological tower, with an additional $176.50 for the telephone installation i
at the EOF, exceeded our expectations, we requested our contractor. to reevaluate our telecomunication needs. ~ Based on a subsequent communications survey:
conducted at the Quad Cities facility by an NRC contractor, changes in~our requirements were made which we' anticipate will result in'a cost savings since-l the antenna installations should not be as' complicated as originally planned.
j These antenna installations and circuitry installations will. provide radio comunicatit.ns within a ten-mile radius of the plant.
Please provide updated cost. estimate for labor and materials 'to accomplish the following tasks:
1.
Establish three pair.of-shielded twin lead circuits from the NRC. room in the E0F to the Comunications building located at the' base of.the E0F microwave tower. These lines should~be terminated atLboth ends withi
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WE-742 connectors and should-be marked."NRC EMERGENCY:USE ONLY".
Any outside terminations should be en' closed <in a i atherproof box to protect-them from the elements. These lines;will' allow. installation of tho' base station equipment required to establish comunications from the E0F to the NRC emergency repeater system.
1 2.
Permanently install a Celwave PD 220 antenna or equivalent at the 300-foot.
level of the old meterological /new siren-tower.-located next.to the plant Visitor _ Center.
Use 7/8-inch semi-rigid foam-core transmission cable-i1 connected to the antenna and. terminated.in the_ building located'at the i
base of the tower. This end of the transmission cable should be terminated with a PL 259 female connector.-
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Permanently install a Celwave PD 340 antenna or equivalent at the 100-foot level on the west side of the E0F microwave tower. Use 1-inch semi-rigid _-
foam-core transmission cable connected to the antenna and terminated in f
-the communications building at the base of the tower.
This end of the
~
transmission cable should be terminated with a PL 259 female connector.
It should be noted that with the exception of the shielded twin lead cable pairs and the two permanently mounted antennas, communications equipment will only be installed at any of the communications sites in the event of an actual e:nergency or drill and will be removed immediately at the termination of the emergency-or drill.
Werk should not commence prior to receipt of a purchase order from NRC Region III.
If you have any questions regarding the above, please feel free to contact.
Ruth LaFreniere (708) 790-5577 of my staff.
Enclosed for your information are the frequencies that the NRC equipment may-use at these sites. We appreciate your assistance in this matter.
i Sincerely.
(T. Essig for)
Charles E. Norelius, Director i
Division-of Radiation Safety 1
and Safeguards
Enclosure:
Transmitter Frequencies ~
i cc w/ enclosure:
Senior Resident Inspector, Quad Cities cc w/o enclosure:
G. Zech, NRR T. Melville, TC R. Sherling BIFC RII RIII RIII III RIII I
LLarniere/ asp P ski S ell er s
j 01/u/90
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ENCLOSURE Morrison Switchyard Microwave Tower Transmitter Frequencies 46.63 166.725 168.550 411.750 46.99 166.775 169.350 411.925 46.81 168.250 169.100 412.150 168.400 165.6625 412.200 166.6125 169.100 417.300-167.100 165.6625 417.350 169.750 417.500 417.800 Plant Meteorological Tower Repeater Frequencies Transmit Receive Transmit Receive Transmit Receive-49.73
-46.63 168.400 166.61251 411.750 417.300 49.77 46.99 167.100 169.750 411.925 417.350 49.91 46.81 169.350 166.725 412.150 417.500 412.200-417.800 All power levels will be at 6 watts or less.
A test has been made for intermodulation products of all the frequencies listed in this report. Any frequency that might generate intermodulation products that would interfere with Quad Cities ' communication system has~ been' removed 1
l.
from consideration for use.
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