ML19224C271: Difference between revisions

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{{#Wiki_filter:+1@t'h--p..--_ _ , , _ _ _
{{#Wiki_filter:+1 @t'h p..-                   -
'J S N R C R E W; h
                                                  'J S N R C R E W; h e,i ANTA,fE"
@ -55Si-e,i ANTA,fE" Virginia Electric and Pcwer Cccpany
                                                                                @ -55Si Virginia Electric and Pcwer Cccpany
* " pg 7 p5:39 a North Anna Pcwer Station. Unit 1 Occket No. 50-338 IE Bulletin 79-01; 24 Hour Notification of Failure to Meet Environinental QuaTification for IE Class Equigaent On Ksy 7,1979 the station was info r..d that six solenoid valves und in the sa.rple systen do not reet t.he envircreental requirenents as set forth in IE Bulletin 79-01. The specific saaple valves and their function are as follows: TV-SS-100A Pressurizer Liquid Sample T V-SE-101 A Pressurizer Vapor Saxple TV-SS-102A RCS Cold Leg Sax.ple TV-SS-104A Pressurizer Relief Tank Saxple TV-SS-lC6A RCS Hot Leg Sarple TV-SS-ll2A Steam Generator Surface Sazple These valves are ccntairc.ent isolation valves required during a CDA.
* a" pg 7     p5:39 North Anna Pcwer Station. Unit 1 Occket No. 50-338 IE Bulletin 79-01; 24 Hour Notification of Failure to Meet Environinental QuaTification for IE Class Equigaent On Ksy 7,1979 the station was info r..d that six solenoid valves und in the sa.rple systen do not reet t.he envircreental requirenents as set forth in IE Bulletin 79-01. The specific saaple valves and their function are as follows:
Tne mechanism causing the problen is a plastic plug which could bicck an air port in the solenoid actuator preventing proper operaticn.
TV-SS-100A         Pressurizer Liquid Sample T V-SE-101 A       Pressurizer Vapor Saxple TV-SS-102A         RCS Cold Leg Sax.ple TV-SS-104A         Pressurizer Relief Tank Saxple TV-SS-lC6A         RCS Hot Leg Sarple TV-SS-ll2A         Steam Generator Surface Sazple These valves are ccntairc.ent isolation valves required during a CDA. Tne mechanism causing the problen is a plastic plug which could bicck an air port in the solenoid actuator preventing proper operaticn. The solenoids in questico are manufactured by ASCO.     (Hodel No. 8320A102)
The solenoids in questico are manufactured by ASCO.(Hodel No. 8320A102)
These valves are norrally left in the closed position and are opened only when a sorple is required. In addition, the valve is designed to fail in the closed pos.ition, therefore the isolaticn capabii t'y of these valves will not he affected by such a failure. For tnis reason, station operaticos will centinu.
These valves are norrally left in the closed position and are opened only when a sorple is required.
                                          .                               L 7elecopied:       Date: E' 9' Tire:
In addition, the valve is designed to fail in the closed pos.ition, therefore the isolaticn capabii t'y of these valves will not he affected by such a failure.
                      <By:
For tnis reason, station operaticos will centinu.
Verified:           :By:
.L.7elecopied:
2ti7 024 vnna u:ag k,
Date: E' 9' Tire:<By: Verified::By: 2ti7 024'-vnna u:ag , k, 790702000n
790702000n"            @
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                                                    -%}}

Latest revision as of 04:10, 2 February 2020

Notification of Failure to Meet Environ Qualification for IE-class Equipment Stipulated in IE Bulletin 79-01
ML19224C271
Person / Time
Site: North Anna Dominion icon.png
Issue date: 05/07/1979
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
References
NUDOCS 7907020032
Download: ML19224C271 (1)
v • d • e


Text

+1 @t'h p..- -

'J S N R C R E W; h e,i ANTA,fE"

@ -55Si Virginia Electric and Pcwer Cccpany

  • a" pg 7 p5:39 North Anna Pcwer Station. Unit 1 Occket No. 50-338 IE Bulletin 79-01; 24 Hour Notification of Failure to Meet Environinental QuaTification for IE Class Equigaent On Ksy 7,1979 the station was info r..d that six solenoid valves und in the sa.rple systen do not reet t.he envircreental requirenents as set forth in IE Bulletin 79-01. The specific saaple valves and their function are as follows:

TV-SS-100A Pressurizer Liquid Sample T V-SE-101 A Pressurizer Vapor Saxple TV-SS-102A RCS Cold Leg Sax.ple TV-SS-104A Pressurizer Relief Tank Saxple TV-SS-lC6A RCS Hot Leg Sarple TV-SS-ll2A Steam Generator Surface Sazple These valves are ccntairc.ent isolation valves required during a CDA. Tne mechanism causing the problen is a plastic plug which could bicck an air port in the solenoid actuator preventing proper operaticn. The solenoids in questico are manufactured by ASCO. (Hodel No. 8320A102)

These valves are norrally left in the closed position and are opened only when a sorple is required. In addition, the valve is designed to fail in the closed pos.ition, therefore the isolaticn capabii t'y of these valves will not he affected by such a failure. For tnis reason, station operaticos will centinu.

. L 7elecopied: Date: E' 9' Tire:

<By:

Verified: :By:

2ti7 024 vnna u:ag k,

790702000n" @

-%

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