ML19327B169

Proposed Tech Specs,Requiring Both Input Relay Trains of Any Reactor Protection Sys or ESFs Channel to Be Included in Response Time Testing of Channel

ML19327B169
Person / Time
Site:	Millstone
Issue date:	10/17/1989
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML19327B168	List: ML19327B167 ML19327B169
References
NUDOCS 8910260091
Download: ML19327B169 (3)

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Docket No. 50-423

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Attachment I Proposed Revision to Technical Specifications Reactor Trip System Instrumentation l

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October M89 0910260091 891017 V ~. T

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3/4.3 INSTRUMENTATION 3/4.3.1 REACTOR TRIP SYSTEM INSTRUMENTATION t

LIMITING CONDT ION FOR OPERATION 3.3.1 As a minimum, the Reactor Trip System instrumentation channels and interlocks of Table 3.3-1 shall be OPERABLE with RESPONSE TIMES as shown in Table 3.3-2.

APPLICABILITY: As shown in Table 3.3-1.

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' ACTION:

( As shown in Table 3.3-1..

SURVEILLANCE RE0VIREMENTS 4.3.1.1 Each Reactor Trip System instrumentation channel and interlock and the automatic trip logic shall be demonstrated OPERABLE by the performance of the Reactor Trip System Instrumentation Surveillance Requirements specified in Table 4.3-1.

4.3.1.2 The REACTOR TRIP SYSTEM RESPONSE T!ME of each Reactor trip function shall be demonstrated to be within its limit at least once per 18 months.

Each test shall include at least one train such that both trains are tested at least once per 36 months and one channel (to include input relays to both trains) per function such that all channels are tested at least once every N times 18 months where N is the total number of redundant channels in a

specific Reactor trip function as shown in the " Total No. of Channels" column of Table 3.3-1.

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l IP'STRUMENTATION SURVEILLANCE REQUIREMENTS l

4.3.2.1 Each ESFAS instrumentation channel and interlock and the automatic ,

actuation logic and relays shall be demonstrated OPERABLE by performance of the ESFAS Instrumentation Surveillance Requirements specified in Table 4.3-2.

'4.3.2.2 The ENGINEERED SAFETY FEATURES RESPONSE TIME of each ESFAS function shall be demonstrated to be within the limit at least once per 18 months. '

Each test shall include at least one train such that both trains are tested at least once per 36 months and one channel (to include input relays to both trains) per function such that all channels are tested at least once per N times 18 months where N is the total number of redundant channels in a specific ESFAS function as shown in the " Total No. of Channels" column of  ;

. Table 3.3-3. 1

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