ML16243A474

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Potential Part 21 Unqualified Component in Certain Allen Bradley Timing Relays
ML16243A474
Person / Time
Site: Millstone, Browns Ferry, Nine Mile Point, Perry, Saint Lucie, North Anna, River Bend, Ginna, South Texas, Fort Calhoun  Constellation icon.png
Issue date: 08/26/2016
From: Bolt T
AZZ / NLI Nuclear Logistics
To:
Office of Nuclear Reactor Regulation
References
51030
Download: ML16243A474 (9)
v • d • e


Text

0812612016 U.S. Nuclear Regulatory Commission Operations Center Event Report Pagel Part 21 (PAR) Event# 51030 Rep Org: AZZ/NLI NUCLEAR LOGISTICS, "INC Notification Date I Time: 05/01/2015 13:32 (EDT)

Supplier: ALLEN BRADLEY Event Date I Time: 04/30/2015 (CDT)

Last Modification: 08/26/2016 Region: 4 Docket#:

City: FORT WORTH Agreement State: Yes County: License#:

State: TX NRC Notified by: TRACY BOLT Notifications: MEL GRAY R1DO HQ Ops Officer: DANIEL MILLS FRANK EHRHARDT R2DO Emergency Class: NON EMERGENCY ROBERT ORLIKOWSKI R3DO 10 CFR Section: GEOFFREY MILLER R4DO 21.21 {d)(3)(i) DEFECTS AND NONCOMPLIANCE PART 21/50.55 REACTORS EMAIL

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POTENTIALLY UNQUALIFIED COMPONENT IN CERTAIN ALLEN BRADLEY TIMING RELAYS The following is an excerpt from a document received from the licensee via email:

"Report of potential 10 CFR Part 21, Allen Bradley Timing Relay Model 700RTC "Pursuant to 10 CFR 21.21 (d)(3)(ii), AZZ/NLI is providing written notification of the identification of a potential failure to comply.

"On the basis of our evaluation, it is determined that AZZ/NLI does not have sufficient information to determine if

  • the subject condition would, or has, created a Substantial Safety Hazard or would have created a Technical Specification Safety Limit violation as it relates to the subject plant applications.

"The specific part which fails to comply or contains a defect:

"As of 2009-2010, Allen Bradley relays base model 700RTC, contain an unevaluated CPLD (Complex Programmable Logic Device). This was an unpublished design change that was implemented to replace an obsolete integrated circuit chip. The undocumented design change did not result in a part number change from Allen-Bradley. There was no change to the appearance of the relay that would identify any design changes were made to the relay configuration. Therefore, NLI qualification/dedication of the relays after 2009 have not included additional testing for the new CPLD component.

"The timing relay model 700RTC has been dedicated/qualified for multiple applications ~or various plants.

"Between 2009-201 O Allen Bradley made a design change without changing the part number of the commercial

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0812612016 U.S. Nuclear Regulatory Commission Operations Center Event Report Page 2 relay or providing any documented evidence of a design change. The manufacturer specification data sheets maintain the classification that the relays are 'solid state', which would imply that there are no digital devices installed in the relay. However, after inspection of the internals of the timing relay (Figure 2), it has been identified that the unit does contain a CPLD which meets the definition of a digital device under the guidance of NEI 01-01."

Potentially affected plants include Browns Ferry, Ginna, Millstone, Nine Mile Point, North Anna, Ft. Calhoun, Perry, River Bend, South Texas Project, and St. Lucie.

  • AZZ/NLI Nuclear Logistics provided additional information regarding Part 21 Report No: P21-04302015, Rev. 1.

Notified R1 DO (Rogge), R2DO (Nease), R3DO(Skokowski}, R4DO (Kellar), and PART 21/50.55 REACTORS via email.

  • AZZ/NLI Nuclear Logistics provided Revision 2 to Part 21 Report No: P21-04302015 to correct the referenced EPRI TR-102323 Rev. 3 to Rev. 4 and change 'timing' contacts to 'instantaneous' contacts as shown below:

"(vii) The corrective action which has been, is being, or will be taken; the name of the individual or organization responsible for the action; and the length of time that has been or will be taken to complete the action.

"The relays that are currently in stock at NLI have been placed on hold until after the units have been determined to be qualified for the specific application. NU has completed the EMC qualification testing per the requirements of EPRI TR-102323 Rev. 4 for the following tests, as applicable: CE101, CE102, RE101, RE102, RS101, RS103, CS101, CS114, CS115 and CS116.

"The results were satisfactory with exception of the following condition: During Conducted Susceptibility CS114 onto the power lines, with the timing circuit in operation, the instantaneous contacts exhibited chatter in the range of 2.6 MHz to 20.3 MHz. The unit requires a ferrite to be installed onto the input power lines of the relay with 3 turns through the ferrite core. In this modified configuration, the relay was not susceptible to Conducted Susceptibility and successfully passed the required test per CS114."

Notified R1 DO (Lilliendahl), R2DO (Guthrie), R3DO(Kunowski}, R4DO (Werner}, and PART 21/50.55 REACTORS via email.

  • *
  • UPDATE FROM TRACY BOLT TO DONG PARK AT 1807 EDT ON 8/15/16 * *
  • AZZ/NLI Nuclear Logistics provided additional information regarding Part 21 Report No: P21-04302015, Rev. 3, correcting the date the change occurred to October 2008.

Notified R1 DO (Jackson), R2DO (Shaeffer}, R3DO (Riemer}, R4DO (Proulx}, and PART 21/50.55 REACTORS via email.

  • *
  • UPDATE FROM TRACY BOLT TO DONG PARK AT 1833 EDT ON 8/26/16 * *
  • AZZ/NLI Nuclear Logistics is making a word correction in Part 21 Report No: P21-04302015, Rev. 4.

Notified R1 DO (Dimitriadis), R2DO (Michel), R3DO (Cameron}, R4DO (Kellar), and PART 21/50.55 REACTORS via email.

08/26/2016 17:29 P.0011007 NL I' Date: August 26, 2016 To:

FAX (301) 816.. 5151 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 From:

Tracy Bolt Director of Quality Assurance AZZ I Nuclear Logistics 7410 Pebble Drive Fort Worth, Texas 76118 UPDATE - Report of potential 10CFR Part 21 Allen Bradley Timing

i Relay Model 700RTC Report No: P21-04302015, Rev. 4 Previous NRC Event number 51030 Previous Accession No: ML15134A016 Total pages including this page: 7 NUCLEAR LOGISTICS INC. www.azz.c:om 7410 Pebble Drive
  • Fort Worth, Texas 1e*11a ... aoo.448.4124 Phone
  • 817.590.0484 Fax

08/26/2016 17:29 (FAX) P.002/007 hAZZ NL I' Date: August 26, 2016 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 Part 21 Report No: P21-04302015, Rev. 4

Subject:

Update

I. Page 5 (vii)~ 2nd paragraph: changed EPRI TR.. 102323 Rev. 3 to Rev. 4.

2. Page 5 (vii), 3rd paragraph: changed 'timing* contacts to 'instantaneous* contacts.

Revision 3 correction: The date the change occurred is October 2008.

Revision 4 correction: Page 5 (vii), changed "Instantaneous" back to "Timing" contact.

Pursuant to 10CFR 21.21 (d) (3) (ii), AZZINLI is providing written notification of the identification of a potential failure to comply.

On the basis of our evaluation, it is determined that AZZ!NLI does not have sufficient information to determine if the subject condition would, or has, created a Substantial Safety Hazard or would have created a Technical Specification Safety Limit violation as it relates to the subject plant applications.

The following information is required per 10CFR21.21 (d) (4).

(i) Name and address of the individual or individuals informing the Commission.

Tracy Bolt, Director of Quality Assurance Nuclear Logistics, Inc 7410 Pebble Drive Ft. Worth, TX 76118 (li) Identification of the facility, activity, or the basic component supplied for such facility or such activity within the United States which fails to comply or contains a defect.

The specific part which fails to comp.ly or contains a defect:

As of October 2008~ Allen Bradley relays base model 700RTC, contain a CPLD (Complex Programmable Logic Device). This was an unpublished design change that was implemented to replace an obsolete integrated circuit chip. The undocumented.design change did not result in a part number change from Allen-Bradley. There was no change to the appearance of the relay that would Page 1 of6 NUCLEAR LOGISTICS INC. www.azz.com 7410 Pebble Drive

  • 800.448.4124 Phone
  • 8"17.590.0484 FEtX

08/26/2016 17:30 P.003/007 identify any design changes were ma.de to the relay configuration.

The timing relay model 700RTC has been dedicated/qualified for multiple applications for various plants.

(iii) ldentlflcatlon of the firm constructing or supplying the basic component which fails to comply or contains a defect.

NLI procured the commercial grade relays, dedicated, qualified and supplied the subject relays as Safety Related.

(iv) Nature of defect or failure to comply and the safety hazard which is created or could be created by such defect or failure to comply.

In October 2008, Allen Bradley made a design change without changing the part number of the commercial relay or providing any documented evidence of a design change. The manufacturer specification data sheets maintain the classification that the relays are "solid state", which would imply that there are no digital devices installed in the relay. However, after inspection of the internals of the timing relay (Figure 2), it has been identified that the unit does contain a CPLD which meets the definition of a digital device under the guidance of NEI 01-01. See Figures 1 and 2 below:

Figure 1- Original qualified design (prior to October 2008).

Relays supplied prior to October 2008 are not affected by this issue.

Part 21 Report No: P21-04302015, Rev. 4 Page2 of6

08/26/2016 17:30 P.004/007 Figure 2 *New design circuit board and CPLD that replaced the original component.

(v) The date on whkh the information of such defect or failure to comply was obtained.

On April 27, 2015, enough information was gathered from the evaluations being performed to determine the reportability of the failure to comply that is the root cause for the event.

Part 21 Report No: PZl-04302015, Rev. 4 Page 3of6

08/26/2016 17:30 P.005/007 (vi) In the case of a basic component which contains a defect or fails to comply, the number and location of these components in use at, supplied for being supplied for, or may be supplied for, manufactured or being manufactured for one or more facilities or activities subject to the regulations in this part.

Relays that have been procured and dedicated from October 2008 to present are identified below.

Plant Name Purchase order Serial Number Browns Ferry 72923-1 29760-001-00003 Ginna Station 6617899 51475-001-00001 and L00002, 52656Kl-01-0001 Grand Gulf 10304816 34182-001-00001 Grand Gulf 10400205 56319-001-00001 39228..001-00001thru-00017~39228-001-00158 thru Invensys 4540216542 39228-001-00166. 39228-001-00170 thru 39228-001-00177

  • . 39407-001~00001 thru-00008, 39407-002M00001 thru -

KHNP Y12-0292-010 00005 Lune:men 874941 IE007CO 38486-001-00001 and-00002, 38486-002-00001 Millstone 45735761 3l998K1-01-0001 Millstone 45735761 31391-001-00001 Nine Mile Point 530734 63245-001-00001 thru-00018 North Anna 70239037 55133-001-00001 &-00002 39602-001-00001and-00002,39602-002-00001 thru-70239037 00003 North Anna 40033-001-00001and40033-001-00002, 40033-002-00001 North Anna 70239037 thru. -00003 33846-001-00001 thru -00009, 33846-001-00011 thru OPPD Ft Calhoun 155213 33846~001-00015, 33846-002-00002 & -00003 ,

OPPD Ft Calhoun 163495 35941-001-00001 thru -00004 OPPD Ft Calhoun 164936 35891Kl-01-0001 thru -0005 OPPO Ft Calhoun 164936 36888-001-00001, -00003 thru -00005 OPPO Ft Calhoun 164936 36888K2-01-0001 OPPD Ft Calhoun 177878 39194..00lMOOOOl thru -00006 OPPD Ft Calhoun 40743-001-00001 thru -00003, 40743-002-00001 182681 OPPD Ft Calhoun 187625 51477M001-00001 thru -00004 Perry Station 45354401 33357-001-00001 thru M00003 River Bend Station 10349942 38585-001*00001 thru -00004 River Bend Station 10362573 40011Moo1-00001 River Bend Station 10378904 51627-001-00001 South Texas Project 134783 33750-001-00001 &-00002 Part21 Report No: P21-04302015. Rev. 4 Page4 of6

0812612016 17:31 P.0061007 South Texas Project 147962 37204-001-00001 thru -00006 South Texas Project 154172 51592-001-00001 thru -00004 South Texas Project 171193 57894-001-00001 thru-00006 Bechtel PO: 25486~974-St Lucie FPA-EMR0-00001 38549-001-00002 thru -00005 (vii) The corrective action which has been, is being, or will be taken; the name of the individual or organization responsible for the action; and the length of time that has been or will be ts.ken to complete the action.

NLI has completed the EMC qualification testing per the requirements ofEPRI TR-102323 Rev. 4 for the following tests, as applicable: CElOl, CE102, RElOl, RE102, RSlOl, RS103, CSIOl, CSl 14, CSllS and CS116.

The results were satisfactory with exception of the following condition: During Conducted Susceptibility CSl 14 onto the power lines, with the timing circuit in operation, the Normally Open Timing contact exhibited chatter (changed state) in the range of 3.3 MHz to 24.0 Miiz.

Supplement.al testing was conducted to confll'lll the Timing contact was susceptible to the

  • condition. The unit requires a ferrite to be installed onto the input power lines of the relay with 3 turns through the ferrite core. *In this modified configuration, the relay was not susceptible to Conducted Susceptibility and successfully passed the required test per CSl 14.

In addition to the EMC testing that was performe~ the Verification and Validation I Dedication activities for the digital device was also completed. The results of the dedication activity are contaj.ned in NL! Verification and Validation/Dedication report VVR-700RTC-Ol. llev. l. The results of the V&V/dedication activity are satisfactory. The finnware version verified is the only version that has been released since the change was implemented.

Part 21 Report No: P21-04302015, Rev. 4 Page 5 of6

08/26/2016 17:31 (FAX) P.007/007 (vlli) Any advice related to the defect or failure to comply about the facility, activity, or basic component that has been, Is being, or wlll be given to puJ'cbasers or licensees.

The functions of the relays supplied by NLI were tested for the following critical characteristics:

Pick~up at rated voltage Drop-out when the voltage is removed Pick-up at degraded voltage Over-Voltage operation Insulation resistance Off delay settings are adjustable from 2-120 seconds Pick-up voltage Drop-out voltage Dimensions and Configuration The relays are dedicated for generic application usage in timing applications. The specific plant application(s) is unknown by NLI. The EMC qualification of the relay is dep~ndent on the installed configuration and location in the plant. The plant should evaluate whether the installed relays are subjected to the specific EMl/RFI condition Conducted Susceptibility CSl 14 between the frequencies of 3.3 to 24.0 MHz identified above.

Please contact me with any questions or comments.

Part 21 Rf,'port No: P21-04302015, Rev. 4 Page 6 of6

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