ML17285A954

Proposed Tech Spec Page 3/4 3-95,reflecting Revised Note (4) Re Channel Check

ML17285A954
Person / Time
Site:	Columbia
Issue date:	01/09/1990
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17285A952	List: ML17285A951 ML17285A954
References
NUDOCS 9001190101
Download: ML17285A954 (2)

Text

TABLE NOTATIONS

~At all times.

~~During main condenser offgas treatment system operation.

(~) The CHANNEL FUNCTIONAL TEST shall also demonstrate that control room alarm annunciation occurs if any of the following conditions exists:

a. 'Instrument indicates measured levels above the alarm setpoint.

b. Circuit failure.

c. Instrument controls not set in operate mode.

(2) The initial CHANNEL CALIBRATION shall be performed using one or more reference radioac ive standards traceable to the National Bureau of Standards (NBS) or using standards that have been obtained from suppliers that participate in measurement assurance activities with NBS. These standards shall permit calibrating the system over its intended range of ener~ and measurement range. Subsequent CHANNEL CALIBRATION shall be performed using the initial radioactive standards or other standards of equivalent quality or radioactive sources that have been related to the initial calibration.

(3) The CHANNEL CALIBRATION shalT include the usF of standard gas samples containing a nominal:

a. 0.0 volume percent hydrogen, balance nitrogen, and

b. 2.0 volume percent hydrogen, balance nitrogen.

(a) The CHANNEL CHECK shall be performed by comparing computer reading] or po comparing each fan's local amperage readingi ;pt (5) The CHANNEL FUNCTIONAI TEST shall be performed by measurement of the phase currents for each fan.

(6) The CHANNEL CALIBRATION shall be performed by using a flow measurement device to determine the fan current to flow relationship.

(7) For the CHANNEL FUNCTIONAL TEST on the intermediate range noble gas ac.ivity monitor s, demonstrate that circuit fai lures or ins=rvment controls when set in the OFF oos'ition produce control room alarm annunciation.

MASHINGTON NUCLEAR - UNIT 2 Amendment 4 9001i90i0i 900i09 PDR AGOCK 05000397' PDC

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