ML20197J463

Proposed Tech Specs Section 4.9.2,revising Info Re Calibr of Augmented Offgas Sys Hydrogen Monitors

ML20197J463
Person / Time
Site:	Vermont Yankee
Issue date:	12/10/1998
From:	VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML20197J460	List: BVY-98-119, LAR 206 to License DPR-58,correcting Error in TS 4.9.2 Re Calibr of Augmented Offgas Sys Hydrogen Monitors ML20197J463
References
NUDOCS 9812150098
Download: ML20197J463 (4)

Text

- - _ . .- .. - . . . .. .- . .. ~

4 f

Docket No. 50-271 i BVY 98-119 j l

l l

l l

l l

Attachment C MARKED-UP TECHNICAL SPECIFICATIONS l

VERMONT YANKEE NUCLEAR POWER STATION  !

l TECHNICAL SPECIFICATIONS PROPOSED CHANGE NO. 206 CALIBRATION OF AUGMENTED OFFGAS HYDROGEN MONITORS  !

l l

l 9812150098 981210 PDR ADOCK 05000271 P PDR i

. /. VYNPS TABLE 4.9.2 NOTATION (1) The Instrument Functional Test shall also demonstrate that automatic l isolation of_this pathway and the Control Room alarm annunciation occurs ]

if any of the following conditions exists:

(a) Instrument indicate measured levels above the alarm setpoint'.

s (b) Circuit failure.

j (c) Instrument indicates a downscale failure.  !

(d) Instrument controls not set in operate mode. 1 (2) The Instrument Functional Test shall also demonstrate that Control Room alarm annunciation occurs when any of the following conditions exists (a) Instrument indicates measured levels above the alarm setpoint.

(b) Circuit failure.

(c) Instrument indicates a downscale failure. I (d) Instrument controls are not set in operate mode.

i (3) The Instrument Calibration for radioactivity measurement instrumentation j i

shall include the use of a known (traceable to National Institute for j Standards and Technology) radioactive source positioned in a reproducible 1 geometry with respect to the sensor. These standards should permit I calibrating the system over its normal operating range of rate capabilities. l J

(4)' The Instrument Calibration shall include the use of standard gas samples I (high ranna and low range) containing suitable concentrations, hydrogen j balanc h for the detection range of interest per  ;

Specification .J.1.

l ilir i

Amendment No. 64, 151 206

p

• l Docket No. 50-271

l. BVY 98119 Attachment D REVISED TECHNICAL SPECIFICATIONS VERMONT YANKEE NUCLEAR POWER STATION TECliNICAL SPECIFICATIONS PROPOSED CIIANGE NO. 206 CALIBRATION OF AUGMENTED OFFOAS IlYDROGEN MONITORS I

. . . ~ . _ _ . . _ . . _ . _ ,__ . . . . . . . _ _ _ _ . . __.-_m . _ _ _ - _ _ _ _ . _ _ _ . _ . . _

y  %

., 0 VYNPS l

TABLE 4.9.2 NOTATION (1) The Instrument Functional Test shall also demonstrate that automatic isolation of this pathway and the Control-Room alarm annunciation occurs if any of the following conditions exists:

(a) Instrument indicate measured levels above the alarm setpoint.

(b) Circuit failure.

l (c) Instrument indicates a downscale failure.

(d) Instrument controls not set in operate mode.

l (2) The Instrument Functional Test shall also demonstrate'that Control Room alarm annunciation occurs when any of the following conditions exist:

(a) Instrument indicates measured levels above the alarm setpoint.

(b) Circuit failure.

(c) Instrument indicates a downscale failure.

(d) Instrument controls are not set in operate mode.

(3) The Instrument Calibration for radioactivity measurement instrumentation shall include the use of a known (traceable to National Institute for Standards and Technology) radioactive source positioned in a reproducible geometry with respect to the sensor. These standards should permit calibrating the system over its normal operating range:of rate capabilities.

'(4) The Instrument Calibration shall include the use of .andard gas samples i

(high range and low range) containing suitable conc tra2 ions, hydrogen l balance air, for the detection range of interest per .pce , fication 3. 8.J.1.

t 1

l l

Amendment No. M , 4 M 206

. _ . . - -