ML14101A342
| ML14101A342 | |
| Person / Time | |
|---|---|
| Site: | Oconee, Saint Lucie, Seabrook, Turkey Point  |
| Issue date: | 04/10/2014 |
| From: | Looft K United Controls International |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 50013 | |
| Download: ML14101A342 (13) | |
Text
-0411012014I.4/ ../.014.U.S.
Nuclear Re....torv Comn ission Onerations Center Event Renort Pa-- IPart 21 (PAR) Event# 50013Rep Org: UNITED CONTROLS INTERNATIONAL Notification Date I Time: 04/09/2014 13:37 (EDT)Supplier:
UNITED CONTROLS INTERNATIONAL Event Date I Time: 03/25/2014 (EDT)Last Modification:
04/09/2014 Region: 1 Docket #:City: NORCROSS Agreement State: YesCounty: License #:State: GANRC Notified by: KORINA LOOFT Notifications:
RAY POWELL R1DOHQ Ops Officer:
STEVE SANDIN MALCOLM WIDMANN R2DOEmergency Class: NON EMERGENCY JAMES DRAKE R4DO10 CFR Section:
NRR PART 21 GROUP EMAIL21.21 (a)(2) INTERIM EVAL OF DEVIATION PART 21 -POTENTIAL DEFECT IN GENERAL ELECTRIC SB1 SWITCHES AND HEA RELAYSThe following is an excerpt from a fax received from United Controls International (UCI):"The purpose of this letter is to provide the NRC with a report in general conformity of the requirements of 1 OCFRPart 21.21. On March 19, 2013, United Controls Issued an Interim letter regarding a discovered manufacturing change in the contact assembly of General Electric SBM series switches.
Since 2009, the manufacturing processof the contact assembly of the SBM switch contacts has changed to have the whole assembly (contact holder andcontact tip) tin plated. This was discovered while investigating an SBM switch that failed at a customer site due tohigh contact resistance across closed contacts.
The finding that there was a manufacturing process change in theSBM switches lead to further discussions and evaluations regarding equipment of similar design. General ElectricSB1 series switches and HEA series relays use the same contact arrangement design as the SBM seriesswitches.
The contact assemblies of the SB1 switches and HEA relays are subject to the same tin plating processof the contact assembly as previously reported on the SBM series switches.
"At this time, UCI is unable to evaluate if this manufacturing change may have an adverse effect on the capability of the General Electric SB1 switches and GE HEA relays to perform in their intended safety related application.
"UCI will notify the affected Utilities to our findings."
The affected Part Number, Utility, Order Number and Quantity is listed below:Part Number 12HEA61B23SX2; Utility CFE; Order 700372018; Quantity 3Part Number 12HEA61C236X2; Utility FPL Turkey Point; Order 02260642-34; Quantity 2Part Number 12HEA61C237; Utility OPPD; Order 180520; Quantity 4
6i '04/10/2014 U.S. Nuclear Regulatory Commission Operations Center Event Report Page 2Part Number 12HEA61C238X2; Utility OPPD; Order 180520; Quantity 3Part Number 12HEA61C237; Utility OPPD; Order 185929; Quantity 2Part Number 12HEA61C237X2; Utility OPPD; Order 188314; Quantity 2Part Number 12HEA63C239X2; Utility FPL St. Lucie; Order 02260642-41; Quantity 8Part Number HEA61C234X2; Utility Antung; Order PP100204; Quantity 2Part Number HEA61C244X2; Utility OPPD; Order 179664; Quantity 5Part Number HEA61C241X2; Utility OPPD; Order 179664; Quantity 2Part Number HEA63C239X2; Utility FPL St. Lucie; Order 02260642-103; Quantity 3Part Number 12HEA61C238X2; Utility OPPD; Order 194686; Quantity 4Part Number 16SB1BB339STS2P; Utility Duke Oconee; Order 156606; Quantity 11Part Number 165BIFB2C85SWM2Y; Utility Nextera Seabrook; Order 2259825-3; Quantity 1Part Number 16SB1LB2C01LSM2P; Utility CFE; Order 700327408; Quantity 3Utility CFE is the Comisi6n Federal de Electricidad (Mexico) and Utility Antung is located in Taiwan."If you have any questions or wish to discuss this matter or this report, please contact:Jim GarrisonEngineering
- Manager, Seismic and Equipment Qualification JGarrison@unitedcontrols.com 770-496-1406 X 103"The 1OCFR Part 21.21 received on March 19, 2014 is EN#49940.,
APR/09/2014/WED 01:37 PM United Controls FAX No. P.001/011 uC'FAX TRANSMITTAL DATE: April 9, 2014TO: NRC OPERATIONS FROM: Korina Looft/UCI CENTERFAX: 301-816-5151 FAX: 770-496-1422 TEL: 301t816-5100
.TEL: .770-496-1406 cc: Interim letter PAGES: 11 pages. with cover pageCOMMENTS:
I WILL FOLLOW UP AS DIRECTED TO MAKE SURE THE FAXTRANSMITTAL WAS RECEIVED.
THANK YOU,KORINA LooFT APR/08/2014/WED 01:37 PM United Controls FAX No. P. 002/011UNITED CONTROLS INTERNATIONAL 10CFR21 INTERIM LETTERApril 8, 2014U.S. Nuclear Regulatory Commission Document Control DeskWashington D.C. 20555-0001
Subject:
1OCFR21 Interim Letter, UCI Not Capable to Determine if Defect ExistsGeneral Electric SB1I Switches and HEA RelaysThe purpose of this letter is to provide the NRC with a report in general conformity of therequirements of 1OCFR Part 21.21. On March 19, 2013, United Controls Issued an Interim letterregarding a discovered manufacturing change in the contact assembly of General Electric SBMseries switches.
Since 2009, the manufacturing process of the contact assembly of the SBMswitch contacts has changed to have the whole assembly (contact holder and contact tip) tinplated, This was discovered while investigating an SBM switch that failed at a customer site dueto high contact resistance across closed contacts.
The finding that there was a manufacturing process change in the SBM switches lead to further discussions and evaluations regarding equipment of similar design. General Electric SB 1 series switches and HEA series relays use thesame contact arrangement design as the SBM series switches.
The contact assemblies of the SB1Iswitches and HEA relays are subject to the same tin plating process of the contact assembly aspreviously reported on the SBM series switches.
At this time, UCI is unable to evaluate if this manufacturing change may have an adverse effecton the capability of the General Electric SBl switches and GE BEA relays to perform in theirintended safety related application.
UCI will notify the affected Utilities to our findings.
Required information as per lOCFR Part 21.21(d)(4) follows:(i) Name and Address of the individual or individuals informing the Commission Robert Hale (or Designee)
President and Chief Executive OfficerUnited Controls International 205 Scientific DriveNoreross, GA 30092www.unitedcontrols.com
..APR/09/2014/WED 01:38 PM United Controls FAX No, P. 003/011UNITED CONTROLS INTERNATIONAL (ii) Identification of the facility, the activity, or the basic component supplied forsuch facility or such activity within the United States which fails to comply orcontains a defect.General Electric SB 1 series switches and HEA series relays, manufactured during2009 and later. Note: UCI is unable to determine if the manufacturing change in2009 is a potential defect and whether it could pose a substantial safety hazard atany U.S. licensee using such relays and switches.
(iWl) Identification of the firm constructing the facility or supplying the basiccomponent which fails to comply or contains a defect.United Controls International 205 Scientific DriveNorcross, GA 30092(iv) Nature of the defect or failure to comply and the safety hazard which is createdor could be created by such defect or failure to comply.The manufacturing process of the contact assemblies on General Electric SB1series switches and HEA series relays was changed in 2009. As part of the newprocess, the entire contact assembly (contact holder and contact tip) is tin plated.UCI is unable to evaluate if this manufacturing change could create a substantial safety hazard. UCI does not know the storage conditions, in serviceenvironmental conditions or in service cycling rates of the switches and relays orhow each of these items may affect the change in contact resistance.
Eachaffected customer needs to evaluate their in storage and in service switches andrelays and determine if the change in contact material could possibly create asafety hazard and effect the ability of the switches and relays to perform in theirsafety related application.
(v) The date on which the information of such defect or failure to comply wasobtained, March 25, 2014www.unitedcontrols.com APR/68/2014/WED C1:38 PM United ControlsFAX No.P. 004/011UNITED CONTROLS INTERNATIONAL (vi) In the case of a basic component which contains a defect or fails to comply, thenumber and location of these components in use at, supplied for, being suppliedfor, or may be supplied for, manufactured or being manufactured for one ormore facilities or activities subject to the regulations in this Part.Part Number Utility Purchase Order Quantity12HEA61B235X2 CFE 700372018 312HEA61C236X2 FPL Turkey Point 02260642-34 212HEA61C237 OPPD 180520 412HEA61C238X2 OPPD 180520 312HEA61C237 OPPD 185929 212HEA61C237X2 OPPD 188314 212HEA63C239X2 FPL St. Lucie 02260642-41 8HEA61C234X2 Antung PP100204 2HEA61C244X2 OPPD 179664 5HEA61C241X2 OPPD 179664 2HEA63C239X2 FPL St. Lucie 02260642-103 312HEA61C238X2 OPPD 194686 416SBIBB339STS2P Duke Oconee 156606 11Nextera16SB1FB2C85SWM2Y Seabrook 2259825-3 11SB1ILB2C01LSM2P CFE 700327408 3(vii) The corrective action which has been, is being, or will be taken; the name of theindividual or organization responsible for the action; and the length of timethat has been or will be taken to complete the action.At this time UCI is notifying all Utilities to which it has supplied safety relatedBEA relays and SB1 switches to since the manufacturing process change in 2009.(viii) Any Advice related to the defect or failure to comply about the facility,
- activity, or basic component that has been, is being, or will be given to purchasers orlicensees.
U.S. Licensees with installed or in storage SB 1 switches and HEA relays shouldevaluate if tin plated contacts are acceptable for use in their specific installed system and location.
www.unitedcontrols.com APR/09/2014/WED 01:38 PM United Controls FAX No. P. 005/011L.UNITED CONTROLS INTERNATIONAL (ix) In the case of an early site permit, the entities to whom an early site permit wastransferred.
Not Applicable.
If you have any questions or wish to discuss this matter or this report, please contact:Jim GarrisonEngineering
- Manager, Seismic and Equipment Qualification jgarrisonOuntiedcontrols.com 770-496-1406 x 103Sincerely,
\U,9Robert B. HalePresident United Controls International www.unitedcontrols.com APR/03/2014/WED 01:39 PM United ControlsFAX No,P. 006/011UNITED CONTROLS INTERNATIONAL United Controls International 205 Scientific DriveNorcross, Georgia 30092(770) 496 1406 tel(770) 496 1422 faxENGINEERING EVALUATION REPORTEER-14-94013-03 Revision 0SB1 Selector Switches and HEA RelaysPreparedEngineering Reviewed By:Approved By:Entreering
.Quality Assurance Date: q/&jzol,Date: ItgDate:www.unitedcontrols.com
,APR/09/2014/WED 01:39 PMUnited Controls FAX No.P. 0 07/0 11EER-14-94013-03, Rev. 0Revision Flistory:Date Revision I Description 04108/14 0 Initial Issue1.0: Customers and Applicable Purchase Orders:Omaha Public Power, Purchase Orders: 180520, 185929, 188314, 179664, 194686Florida Power and Light, Purchase Orders: 02260642-34, 02260642-41, 02260642-103
- Nextera, Purchase Order: 2259825-3 GFE Purchase Orders: 700372018, 700327408 Antung Purchase Order: PP100204Duke Energy Purchase Order: 1566062.0: Manufacturer:
General Electric3.0: Part Numbers:12HEA61B235X2, 12HEA61C236X2, 12HEA61 C237, 12HEA61C238X2, 12HEAd1 C237X2, 12HEA63C239X2, HEA61C234X2, HEA61C244X2, HEAdI C241X2,HEA63C239X2, 16SB1lBB339STS2P, 16SB1FB2C85SWM2Y, 16SB 1LS2C01LSM2P 4.0:
References:
- 1. General Electric Material Process E-Mail Dated 3/25/2014 5.0:
Description:
This Engineering Evaluation is being written as a 10CFR 50, Part 21 Interim letter todocument findings regarding the change of a manufacturing process of the contactassemblies of GE SB1 switches and HEA relays.6.0: Technical Evaluation I Analysis I Disposition:
A prior issue was discovered due to the failure of several GE SBM switches during on-site contact resistance testing.
The SBM switches failed at a customer site due to highcontact resistance across closed contacts.
It was determined during that investigation that the manufacturing process of the contact assemblies of the GE SBM switches hadchanged in 2009 to include the tin plating of the entire contact assembly (contact holderand contact tip). Further investigation determined that the same contact assembly isused on GE SB1 switches and HEA relays. Both of the items are affected by the samemanufacturing process change as the GE SBM switches.
Page 2 of 6United Controls International C 205 Scientific Dr. Norcross, GA 30092CONFIDENTIAL AND PROPRIETARY DOCUMENT:
Do not disclose to third party without express written consent from United Controls.
APR/08/2014/WED 01:39 PM United ControlsFAX No,P. 008/011EER-14-94013-03, Rev. 07.0
Conclusions:
Based on the above findings, there was a significant manufacturing process change tothe General Electric SB1 series switches and HEA series relays in 2009- The highresistance across switch contacts in the GE SB1 switches and HEA relays could lead to afailure of the switch and relay to change state when required.
Concerns have beenraised regarding Tin Plated movable contacts used for make or break service and in usewithout protective lubrication.
UCI is not capable to complete an evaluation of the affectthat this change may have on in storage SR1 switches and HEA relays or alreadyinstalled SR1 switches and HEA relays that were provided to the customers on thepurchase orders listed in section 1.0. UCI does not know the storage conditions, inservice environmental conditions or in service cycling rates of the switches and relays orhow the each of these items may affect the change in contact resistance.
Each affectedcustomer needs to evaluate their in storage and in service switches and determine if thechange in contact material could possibly create a safety hazard and effect the ability ofthe switches to perform in their safety related application.
8.0 Attachments
I. General Electric Material Process E-Mail, Dated 312512014 Page 3 of 6United Controls International l 205 Scientific Dr. Norcross, GA 30092CONPDMENTIAL AND PROPRIETARY DOCUMENT:
Do not disclose to third party without expres written eonSent from United Controls.
APR/09/2014/WED 01:40 PM United ControlsFAX No.P. 009/011EER-14-94013-03, Rev. 0Attachment 1General Electric Material Process Email Dated 3125/2014 Page 4 of 6United Controls International
[ 205 Scientific Dr. Norcross, GA 30092CONFIDENTIAL AND PROPRIETARY DOCUN{8NT; Do not disclose to third prty without oxpress written consent from United Controls.
APR/09/2014/WED 01:40 PM United Controls FAX No. P. 010/011EER-14-94013-03, Rev. 0Jim GarrisonFront: Statton, Jim (GE Energy Management)
<James.Statton@ge.com>
Sent! Tuesday, March 25, 2014 3:40 PMTo: Jim Garrison; Colson, KadosCc- Korina Looft
Subject:
RE; SBM Switch Question.
Helo Jim,The coined contact process applies to all; SBM, SBI and HE-A products.
Regards,TimFrom: Jim Garrison rmailto:_Garrlson@unltedcontrots.com]
Sent, Tuesday, March 25, 2014 2:15 PMTo: Statton, Jim (GE Energy Management);
Colson, KarlosCc: Kouina Looft
Subject:
RE: SBM Switch QuestionJim,Thank you for the arnswer.Did this new manufacturing process also extend to the $51 switches and HEA relays?Jim GarrisonEngineering ManagerUnited Controls International (770)-496-1406 ext. 103Fromn Statton, Jim (GE Energy Management) imallto:james.Stattonfae.com]
Sent: Wednesday, March 05, 2014 11:31 AMTo: Jim Garrison; Colson, KarlosCc: Jeannette Martin
Subject:
RE: SBM Switch QuestionHello Jim,Please see comments from our designerThe SBIvM contacts are pure silver tips coined to a brass contact holder, Since the beginning of 2009, the process changedto have the whole assembly (contact bolder and contact tip) tin plated.However, this process does not affvcts dih resistivity and reliability of the contacts.
Both tho old process and the newprocess are doomed equivalent.
There is no particular contact resistance value and/or tolerance that can be used for a pass/fail ceizeria found ort theproducts department publishad data. None of the switches product publications indicate any numerical value or tolerance for contact resistance.
Using a rcsistance meter to ascertain contact resistance for 9B type switches is not recommended or advisable au a methodlto ascertain contact contnirty.
Any attempt to use much a meter will produce variable readings.
Should resistance verification be desired the method that is recommended is to use a test circuit that includes a DC source connected to aPage 5 of 6United Controls International 5 205 Scientific Dr. Norcross, GA 30092CONFIDENTIAL AND PROPRISTARY DOCW;NT:
Do not diselose to third party without express written consent from United Controls.
APR/09/2014/WED 01:40 PM United Controls FAX No, PF 011/011EER-14-94013-03, Rev. 0known resistance load through the switch's closed contacts and to measure the voltage drop across the closed contacts, There is no defite value or prediction of how much tiis voltage drop will be but is is expected it will be a negligible value.Regards,JimFrom: Jim Garrison rnailtv:JGarrisonOunitedcoritoiscom]
Sent. Monday, Marth 03, 2014 12:10 PMTo: Statton, Jim (GE Energy Management);
Colson, KariosCc- Jeannette Martin
Subject:
RE: SEM Switch QuestionJim,From talking with our customer, they believe that contacts in the SBM were of a different design. The stationary contacts being pure silver with a steel back coined to a nickel plated brass base and the moving contact being pre silverwith a steel back coined to a brass base, They confirmed this through testing an old switch that they had in storage.
Doyou know when the material specification and process for the contacts may have changed?
Please let me know, thanks.Jim GarrisonEngineering ManagerUnited Controls International (770)-496-1406 ext. 10.From: Stattan, Jlm (GE Energy Management)
(mallto:James.Stattonage.coml Sent: Wednesday, January 15, 2014 8:04 AMTo: Colson, KadosCc Jim Garrison
Subject:
RE, 5BM Switch QuestionHelio Karlos,Please see comments from our designer; As far as I know, we have never experienced corrosion on the SBM contacts.
This condition has not been reported by ourcustomers.
The SBM contacts are not welded, instead they are coined to the base. It is what we call coining process where the silvertip contact is placed in a confined die and subjected to sufficiently high pressure to induce plastic flow on dhe surface ofthe material.
The moving contact base is made of cartridge brass (70-30) and the stationary contact base is made of tinned COtZn-Snalloy. In both cases the conract tip are made of silver .109 DLA_Can we get a picture of these contacts?
Regards,JimFrom: Colson, Karlos [rnallto:Kado§;C&lson*Gexmarorn]
Sent: Monday, January 13, 2014 3:12 PMTo: Statton, Jim (GE Energy Management)
Cc; Jim Garrison
(]Ggrrison~unitedcontrols.com)
Subject:
FN: SIBM Switch QuestIonImportance:
High2Page 6 of 6United Controls International
[ 205 Scientific Dr. Norcross, GA 30092CONPIDENTIAL AND PROPRIETARY DOCUMENT:
Do not disclose to third party without express written consent from United Controls.