ML20170A404

Independent Spent Fuel Storage Installation Updated Decommissioning Safety Analysis Report, DSAR-7.1, Rev. 0, Instrumentation and Control, Introduction

ML20170A404
Person / Time
Site:	Fort Calhoun, 07100256
Issue date:	04/30/2020
From:	Omaha Public Power District
To:	Office of Nuclear Reactor Regulation, Office of Nuclear Material Safety and Safeguards
Shared Package
ML20170A380	List: LIC-20-0005, Independent Spent Fuel Storage Installation, Technical Specification Basis ML20170A382 ML20170A383 ML20170A384 ML20170A385 ML20170A387 ML20170A388 ML20170A389 ML20170A390 ML20170A391 ML20170A392 ML20170A393 ML20170A394 ML20170A395 ML20170A396 ML20170A397 ML20170A398 ML20170A399 ML20170A400 ML20170A401 ML20170A402 ML20170A403 ML20170A404 ML20170A405 ML20170A406 ML20170A408 ML20170A409 ML20170A410 ML20170A411 ML20170A412 ML20170A414 ML20170A415 ML20170A416 ML20170A417 ML20170A418 ML20170A419 ML20170A420 ML20170A421 ML20170A422 ML20170A423 ML20170A424 ML20170A425 ML20170A426 ML20170A427 ML20170A428 ML20170A429 ML20170A430 ML20170A431 ML20170A432 ML20170A433 ... further results
References
LIC-20-0005
Download: ML20170A404 (3)

Text

Page 1 of 3 DSAR-7.1 Instrumentation and Control Introduction Rev 0 Safety Classification: Usage Level:

Safety Information Change No.: EC 69283 Reason for Change: This section is being updated to reflect the permanent cessation of operations of Fort Calhoun Station. The contents of this section have been changed to remove any information which is not applicable during decommissioning.

Preparer: M. Bakhit Fort Calhoun Station

DSAR-7.1 Information Use Page 2 of 3 Introduction Rev. 0 Table of Contents

7. INSTRUMENTATION AND CONTROL............................................................................. 3 7.1 Introduction ............................................................................................................... 3

DSAR-7.1 Information Use Page 3 of 3 Introduction Rev. 0

7. INSTRUMENTATION AND CONTROL 7.1 Introduction The plant systems are instrumented to provide information on plant conditions at selected locations, to protect equipment and personnel from undesirable conditions and to control the Spent Fuel Pool cooling system and other supporting auxiliaries.

The principal control station for the facility is in the main control room, with local controls being available for many SSCs. Due to the permanent shutdown of Fort Calhoun Station, many of the instrumentation and controls components no longer have functions. The remaining equipment discussed in this chapter relate primarily to SFP instrumentation, the emergency response facility computer system (ERF), and the portions of the control boards which remain in use.

Instrumentation and controls essential to the facility are located in the main control room or locally at the equipment. The instrumentation in the control room is arranged in groups on the control boards so that when corrective action is required, all pertinent indicators, recorders and controllers are within easy reach of the operator. The control board is a duplex bench board. Visible alarms with audible signals located on the superstructure over the main control board annunciate and identify abnormal operating conditions. Telephone systems provide both internal and external communication.

The main Control Room is kept at a controlled temperature which is well within the design ambient temperature requirements of the instruments; the temperature and humidity in the computer room are closely controlled.

All instruments have been type tested to verify that they will operate satisfactorily in the range of ambient temperatures expected in the area where they are located.