Information Notice 2006-14, Potentially Defective External Lead-Wire Connections in Barton Pressure Transmitters: Difference between revisions

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{{#Wiki_filter:UNITED STATES
{{#Wiki_filter:UNITED STATES


NUCLEAR REGULATORY COMMISSION
===NUCLEAR REGULATORY COMMISSION===
OFFICE OF NUCLEAR REACTOR REGULATION


OFFICE OF NUCLEAR REACTOR REGULATION
WASHINGTON, D.C.  20555-0001


WASHINGTON, D.C. 20555-0001 September 25, 2006 NRC INFORMATION NOTICE 2006-14, SUPPLEMENT 1: POTENTIALLY DEFECTIVE
===September 25, 2006===
NRC INFORMATION NOTICE 2006-14, SUPPLEMENT 1: POTENTIALLY DEFECTIVE


EXTERNAL LEAD-WIRE
EXTERNAL LEAD-WIRE


CONNECTIONS IN BARTON
===CONNECTIONS IN BARTON===
 
PRESSURE TRANSMITTERS
PRESSURE TRANSMITTERS


Line 46: Line 47:
Instruments, LLC, (PRIME - previously known as Barton and ITT-Barton) and Westinghouse
Instruments, LLC, (PRIME - previously known as Barton and ITT-Barton) and Westinghouse


Electric Company, LLC, Reactor Systems and Services (Westinghouse). Specifically, subsequent to the issuance of IN 2006-14, NRC staff inspections found that neither PRIME nor
Electric Company, LLC, Reactor Systems and Services (Westinghouse). Specifically, subsequent to the issuance of IN 2006-14, NRC staff inspections found that neither PRIME nor


Westinghouse could provide documentation to indicate that Barton 763, 763A, and 764 pressure transmitters manufactured after May 1982 had been demonstrated to be
Westinghouse could provide documentation to indicate that Barton 763, 763A, and 764 pressure transmitters manufactured after May 1982 had been demonstrated to be


environmentally qualified. It is expected that addressees of this notice will review the
environmentally qualified. It is expected that addressees of this notice will review the


information for applicability to their facilities and consider actions, as appropriate, to avoid
information for applicability to their facilities and consider actions, as appropriate, to avoid


similar problems. However, suggestions contained in this information notice are not NRC
similar problems. However, suggestions contained in this information notice are not NRC


requirements; therefore, no specific action or written response is required.
requirements; therefore, no specific action or written response is required.
Line 65: Line 66:
pull the insulation (which covered the external lead wires) out of the epoxy potting material and
pull the insulation (which covered the external lead wires) out of the epoxy potting material and


expose the bare conductor. IN 2006-14 also addressed the manufacturers recommendation
expose the bare conductor. IN 2006-14 also addressed the manufacturers recommendation


for mechanically testing the external lead wires to determine whether they were susceptible to
for mechanically testing the external lead wires to determine whether they were susceptible to
Line 87: Line 88:
qualified by PRIME using a loss-of-coolant accident and high-energy line break simulation
qualified by PRIME using a loss-of-coolant accident and high-energy line break simulation


(performed at the Westinghouse testing facility). The connector configuration using Kynar
(performed at the Westinghouse testing facility). The connector configuration using Kynar


heat-shrink sleeving was identical to the tested configuration except for the use of Kynar
heat-shrink sleeving was identical to the tested configuration except for the use of Kynar
Line 93: Line 94:
heat-shrink sleeving (a material demonstrated to have harsh-environment durability) in lieu of
heat-shrink sleeving (a material demonstrated to have harsh-environment durability) in lieu of


Polyolefin heat-shrink sleeving. This design, with Kynar heat-shrink sleeving, was
Polyolefin heat-shrink sleeving. This design, with Kynar heat-shrink sleeving, was


environmentally qualified by the use of applicable material qualification data and similarity
environmentally qualified by the use of applicable material qualification data and similarity


analysis. Westinghouse performed a separate environmental qualification to support the supply
analysis. Westinghouse performed a separate environmental qualification to support the supply


of qualified pressure transmitters to Westinghouse customers.
of qualified pressure transmitters to Westinghouse customers.
Line 111: Line 112:
transmitters was performed for the pre-May 1982 connector design with Polyolefin heat-shrink
transmitters was performed for the pre-May 1982 connector design with Polyolefin heat-shrink


sleeving over the individual external lead wires extending into the epoxy potting material. The
sleeving over the individual external lead wires extending into the epoxy potting material. The


NRC staff found that PRIME was unable to provide documentation to demonstrate that the
NRC staff found that PRIME was unable to provide documentation to demonstrate that the
Line 117: Line 118:
post-May 1982 connector design, which does not have heat-shrink sleeving over the individual
post-May 1982 connector design, which does not have heat-shrink sleeving over the individual


external lead wires extending into the epoxy potting material, is environmentally qualified. The
external lead wires extending into the epoxy potting material, is environmentally qualified. The


environmental qualification of electrical equipment is described in NRC Regulatory Guide 1.89, Environmental Qualification of Certain Electric Equipment Important to Safety for Nuclear
environmental qualification of electrical equipment is described in NRC Regulatory Guide 1.89, Environmental Qualification of Certain Electric Equipment Important to Safety for Nuclear
Line 135: Line 136:
that Westinghouse had performed a separate environmental qualification of the pre-May 1982 design of the Barton 763, 763A, and 764 pressure transmitters and did not take credit for the
that Westinghouse had performed a separate environmental qualification of the pre-May 1982 design of the Barton 763, 763A, and 764 pressure transmitters and did not take credit for the


environmental qualification activities performed by PRIME. Westinghouse supplied its
environmental qualification activities performed by PRIME. Westinghouse supplied its


customers with Barton pressure transmitters, manufactured by PRIME to Westinghouse
customers with Barton pressure transmitters, manufactured by PRIME to Westinghouse
Line 141: Line 142:
specifications, in accordance with the Westinghouse environmental qualification, and shipped
specifications, in accordance with the Westinghouse environmental qualification, and shipped


with a Westinghouse Certificate of Qualification. The NRC staff found that Westinghouse was
with a Westinghouse Certificate of Qualification. The NRC staff found that Westinghouse was


unable to provide documentation to demonstrate that the post-May 1982 connector design of
unable to provide documentation to demonstrate that the post-May 1982 connector design of
Line 164: Line 165:
IN 2006-14, Sup 1 qualified, as required by Title 10 of the Code of Federal Regulations (10 CFR) Section 50.49, Environmental Qualification of Electric Equipment Important to Safety for Nuclear Power
IN 2006-14, Sup 1 qualified, as required by Title 10 of the Code of Federal Regulations (10 CFR) Section 50.49, Environmental Qualification of Electric Equipment Important to Safety for Nuclear Power


Plants. It should be noted that the issue concerning environmental qualification does not apply
Plants. It should be noted that the issue concerning environmental qualification does not apply


to pressure transmitter connectors supplied by PRIME or Westinghouse which were
to pressure transmitter connectors supplied by PRIME or Westinghouse which were
Line 170: Line 171:
manufactured prior to May 1982, with heat-shrink sleeving over the individual external lead
manufactured prior to May 1982, with heat-shrink sleeving over the individual external lead


wires extending into the epoxy material. It should also be noted that transmitters manufactured
wires extending into the epoxy material. It should also be noted that transmitters manufactured


prior to May 1982 may have had the connector assemblies replaced with the post-May 1982 design either in the field or at PRIME during maintenance or repair activities.
prior to May 1982 may have had the connector assemblies replaced with the post-May 1982 design either in the field or at PRIME during maintenance or repair activities.
Line 187: Line 188:
qualification (Agencywide Documents Access and Management System, Accession No.
qualification (Agencywide Documents Access and Management System, Accession No.


ML052700274). Further, NRC Generic Letter 88-07, Modified Enforcement Policy Relating to
ML052700274). Further, NRC Generic Letter 88-07, Modified Enforcement Policy Relating to


10 CFR 50.49, Environmental Qualification of Electrical Equipment Important to Safety For
10 CFR 50.49, Environmental Qualification of Electrical Equipment Important to Safety For
Line 194: Line 195:


==CONTACT==
==CONTACT==
This information notice requires no specific action or written response. Please direct any
This information notice requires no specific action or written response. Please direct any


questions about this matter to one of the technical contacts listed below.
questions about this matter to one of the technical contacts listed below.


/RA by John Lubinski for/
/RA by John Lubinski for/
                                      Ho K. Nieh, Acting Director


===Ho K. Nieh, Acting Director===
Division of Policy and Rulemaking
Division of Policy and Rulemaking


Office of Nuclear Reactor Regulation
===Office of Nuclear Reactor Regulation===
Technical Contacts:
Bill Rogers, NRR/DE
 
Kamalakar Naidu, NRR/DE
 
301-415-2945
301-415-2980
E-mail:  bhr@nrc.gov
 
E-mail:  krn@nrc.gov
 
Hukam Garg NRR/DE
 
Stephen Alexander, NRR/DR
 
301-415-2929
301-415-2995 E-mail:  hcg@nrc.gov
 
E-mail:  sda@nrc.gov
 
ML062490133 OFFICE
 
DE:EQ
 
TECH EDITOR
 
DE:EIC
 
BC:EQV


Technical Contacts: Bill Rogers, NRR/DE                      Kamalakar Naidu, NRR/DE
DD:DE


301-415-2945                          301-415-2980
D:DE
                        E-mail: bhr@nrc.gov                  E-mail: krn@nrc.gov


Hukam Garg NRR/DE                    Stephen Alexander, NRR/DR
NAME


301-415-2929                          301-415-2995 E-mail: hcg@nrc.gov                  E-mail: sda@nrc.gov
BRogers


ML062490133 OFFICE    DE:EQ          TECH EDITOR    DE:EIC        BC:EQV          DD:DE          D:DE
HChang


NAME      BRogers        HChang        AHowe         HHamze          GImbro          MMayfield
AHowe


DATE      9/1/06          9/13/06        9/1/06        9/1/06          9/1/06          9/1/06 OFFICE    DORL:          DIRS:O        LA:PGCB:DPR    PGCB:DPR        BC:PGCB:DPR    (A)D:DPR
HHamze


NAME      DTerao          MJRoss        CHawes        DBeaulieu        CJackson        Jlubinski for
GImbro


MMayfield
DATE
9/1/06
9/13/06
9/1/06
9/1/06
9/1/06
9/1/06 OFFICE
DORL:
DIRS:O
LA:PGCB:DPR
PGCB:DPR
BC:PGCB:DPR
(A)D:DPR
NAME
DTerao
MJRoss
CHawes
DBeaulieu
CJackson
===Jlubinski for===
HNieh
HNieh


DATE     9/1/06         9/5/06           9/20/06     9/13/06             9/20/06         9/25/06
DATE
 
9/1/06
9/5/06
    9/20/06
9/13/06
    9/20/06
    9/25/06


COVER PAGE
COVER PAGE


DATE:                     September 26, 2006 DOCUMENT NAME:           ADAMS Accession #: 062490133 SUBJECT:                 NRC IN 2006-14, Supp 1: Potentially Defective External Lead-wire Connection in Barton
DATE:
 
===September 26, 2006===
DOCUMENT NAME:
ADAMS Accession #: 062490133 SUBJECT:  
NRC IN 2006-14, Supp 1: Potentially Defective External Lead-wire Connection in Barton


Pressure Transmitters
Pressure Transmitters


==CONTACT==
==CONTACT==
:                 Bill Rogers, 301-415-2945
:
                                            !!! ROUTING LIST !!!
Bill Rogers, 301-415-2945
                                                    NAME                       DATE
!!! ROUTING LIST !!!
NAME
 
DATE
 
1.
 
B. Rogers
 
9/1/06
2.
 
Tech Editor
 
9/13/06
3.
 
A. Howe
 
9/1/06
4.
 
H. Hamze
 
9/1/06
5.
 
G. Imbro
 
9/1/06
6.
 
M. Mayfield
 
9/1/06
7.
 
D. Terao
 
9/1/06
8.
 
MJ. Ross
 
9/5/06
9.
 
C. Hawes
 
9/20/06
10.
 
D. Beaulieu
 
9/13/06
11.
 
C. Jackson
 
9/20/06
12.
 
H. Nieh
 
13.
 
Secretary - Dispatch
 
ADAMS ACCESSION #: ML062490133
 
TEMPLATE #: NRR-052
9  DRAFT or 9    FINAL
 
Folder:  9      DIRS
 
9     
            9     
            9    Other _______
Security Rights:
Owner = : NRR-DPR Secretaries


1.  B. Rogers                                    9/1/06
9 Other
                            2.  Tech Editor                                  9/13/06
                            3.  A. Howe                                      9/1/06
                            4.  H. Hamze                                      9/1/06
                            5.  G. Imbro                                      9/1/06
                            6.  M. Mayfield                                  9/1/06
                            7.  D. Terao                                      9/1/06
                            8.  MJ. Ross                                      9/5/06
                            9.  C. Hawes                                    9/20/06
                          10.    D. Beaulieu                                  9/13/06
                          11.    C. Jackson                                  9/20/06
                          12.    H. Nieh


13.    Secretary - Dispatch
Viewer = : NRC Users


ADAMS ACCESSION #: ML062490133                                                          TEMPLATE #: NRR-052
Author  = : Others
9 DRAFT or 9 FINAL                                        Security Rights:
Folder: 9  DIRS                                          Owner = : NRR-DPR Secretaries


9                                                         9 Other
AVAILABILITY:
9   Non-Publicly Available


9                                                 Viewer = : NRC Users
9   Non-Publicly Available Pending Review


9 Other _______                                  Author = : Others
or


AVAILABILITY:                                            Case/Reference #: (TAC, WITs, Yellow Ticket, etc.)
9   Publicly Available
9 Non-Publicly Available


9 Non-Publicly Available Pending Review
9   Publicly Available SISP Review Complete


or                                                        Document Sensitivity: 9 Non-Sensitive
Case/Reference #: (TAC, WITs, Yellow Ticket, etc.)
Document Sensitivity:   9     Non-Sensitive


9 Publicly Available                                      9 Sensitive (pre-decisional)
9   Sensitive (pre-decisional)  
9 Publicly Available SISP Review Complete                9 Copyright}}
9 Copyright}}


{{Information notice-Nav}}
{{Information notice-Nav}}

Latest revision as of 06:58, 15 January 2025

Potentially Defective External Lead-Wire Connections in Barton Pressure Transmitters
ML062490133
Person / Time
Issue date: 09/25/2006
From: Ho Nieh
NRC/NRR/ADRA/DPR
To:
Beaulieu, David, NRR/DLPM, 415-3243
References
IN-06-014, Suppl 1
Download: ML062490133 (5)
v • d • e


UNITED STATES

NUCLEAR REGULATORY COMMISSION

OFFICE OF NUCLEAR REACTOR REGULATION

WASHINGTON, D.C. 20555-0001

September 25, 2006

NRC INFORMATION NOTICE 2006-14, SUPPLEMENT 1: POTENTIALLY DEFECTIVE

EXTERNAL LEAD-WIRE

CONNECTIONS IN BARTON

PRESSURE TRANSMITTERS

ADDRESSEES

All holders of operating licenses for nuclear power reactors, except those who have

permanently ceased operations and have certified that fuel has been permanently removed

from the reactor.

PURPOSE

The U.S. Nuclear Regulatory Commission (NRC) is issuing this supplement to Information

Notice (IN) 2006-14, Potentially Defective External Lead-Wire Connections in Barton Pressure

Transmitters, to provide additional information regarding Barton 763 and 763A gauge pressure

transmitters and Barton 764 differential pressure transmitters supplied by PRIME Measurement

Instruments, LLC, (PRIME - previously known as Barton and ITT-Barton) and Westinghouse

Electric Company, LLC, Reactor Systems and Services (Westinghouse). Specifically, subsequent to the issuance of IN 2006-14, NRC staff inspections found that neither PRIME nor

Westinghouse could provide documentation to indicate that Barton 763, 763A, and 764 pressure transmitters manufactured after May 1982 had been demonstrated to be

environmentally qualified. It is expected that addressees of this notice will review the

information for applicability to their facilities and consider actions, as appropriate, to avoid

similar problems. However, suggestions contained in this information notice are not NRC

requirements; therefore, no specific action or written response is required.

DESCRIPTION OF CIRCUMSTANCES

IN 2006-14 discussed a defect in the Barton Models 763, 763A and 764 pressure transmitter

connector assemblies in which the external lead wires could be stressed in such a way as to

pull the insulation (which covered the external lead wires) out of the epoxy potting material and

expose the bare conductor. IN 2006-14 also addressed the manufacturers recommendation

for mechanically testing the external lead wires to determine whether they were susceptible to

this failure.

Prior to May 1982, the pressure transmitter connector external lead wires were individually

covered with Polyolefin heat-shrink sleeving which encompassed the solder joints of the

external lead wires and extended outside the case for about two inches before the external

cavity was filled with epoxy potting material (for approximately six months in early 1982, the

Polyolefin heat-shrink sleeving was replaced with Kynar heat-shrink sleeving).

ML062490133

IN 2006-14, Sup 1 The connector configuration using the Polyolefin heat-shrink sleeving was environmentally

qualified by PRIME using a loss-of-coolant accident and high-energy line break simulation

(performed at the Westinghouse testing facility). The connector configuration using Kynar

heat-shrink sleeving was identical to the tested configuration except for the use of Kynar

heat-shrink sleeving (a material demonstrated to have harsh-environment durability) in lieu of

Polyolefin heat-shrink sleeving. This design, with Kynar heat-shrink sleeving, was

environmentally qualified by the use of applicable material qualification data and similarity

analysis. Westinghouse performed a separate environmental qualification to support the supply

of qualified pressure transmitters to Westinghouse customers.

Subsequent to May 1982, all the connector assemblies for Barton Models 763, 763A and 764 pressure transmitters were manufactured without heat-shrink sleeving over the individual

external lead wires extending into the epoxy potting material.

The NRC staff performed an inspection of PRIME in July 2006 and determined that the most

recent PRIME environmental qualification for Barton Models 763, 763A and 764 pressure

transmitters was performed for the pre-May 1982 connector design with Polyolefin heat-shrink

sleeving over the individual external lead wires extending into the epoxy potting material. The

NRC staff found that PRIME was unable to provide documentation to demonstrate that the

post-May 1982 connector design, which does not have heat-shrink sleeving over the individual

external lead wires extending into the epoxy potting material, is environmentally qualified. The

environmental qualification of electrical equipment is described in NRC Regulatory Guide 1.89, Environmental Qualification of Certain Electric Equipment Important to Safety for Nuclear

Power Plants, the Institute of Electrical and Electronics Engineers, Inc., (IEEE) Standard

323-1974, IEEE Standard for Qualifying Class 1E Equipment for Nuclear Power Generating

Stations, IEEE Standard 344-1975, IEEE Recommended Practice for Seismic Qualification of

Class 1E Equipment for Nuclear Power Generating Stations, and other applicable industry

standards.

The NRC staff also performed an inspection of Westinghouse in August 2006 and determined

that Westinghouse had performed a separate environmental qualification of the pre-May 1982 design of the Barton 763, 763A, and 764 pressure transmitters and did not take credit for the

environmental qualification activities performed by PRIME. Westinghouse supplied its

customers with Barton pressure transmitters, manufactured by PRIME to Westinghouse

specifications, in accordance with the Westinghouse environmental qualification, and shipped

with a Westinghouse Certificate of Qualification. The NRC staff found that Westinghouse was

unable to provide documentation to demonstrate that the post-May 1982 connector design of

the Barton 763, 763A, and 764 pressure transmitters, which does not have heat-shrink sleeving

over the individual external lead wires extending into the epoxy material, is environmentally

qualified.

DISCUSSION

Based on the above information, the NRC staff found that neither PRIME nor Westinghouse

(which performed separate environmental qualification of the pressure transmitters) could

provide documentation to indicate that Barton 763, 763A, and 764 pressure transmitters

manufactured after May 1982 and which do not have heat shrink sleeving over the external

lead wires extending into the epoxy material, had been demonstrated to be environmentally

IN 2006-14, Sup 1 qualified, as required by Title 10 of the Code of Federal Regulations (10 CFR) Section 50.49, Environmental Qualification of Electric Equipment Important to Safety for Nuclear Power

Plants. It should be noted that the issue concerning environmental qualification does not apply

to pressure transmitter connectors supplied by PRIME or Westinghouse which were

manufactured prior to May 1982, with heat-shrink sleeving over the individual external lead

wires extending into the epoxy material. It should also be noted that transmitters manufactured

prior to May 1982 may have had the connector assemblies replaced with the post-May 1982 design either in the field or at PRIME during maintenance or repair activities.

NRC Regulatory Issue Summary 2005-20, Revision to Guidance Formerly Contained in NRC

Generic Letter 91-18, Information to Licensees Regarding Two NRC Inspection Manual

Sections on Resolution of Degraded and Nonconforming Conditions and on Operability, and

NRC Inspection Manual Part 9900 Technical Guidance, Operability Determinations &

Functionality Assessments for Resolution of Degraded or Nonconforming Conditions Adverse to

Quality or Safety, provides guidance on nonconforming conditions related to environmental

qualification (Agencywide Documents Access and Management System, Accession No.

ML052700274). Further, NRC Generic Letter 88-07, Modified Enforcement Policy Relating to

10 CFR 50.49, Environmental Qualification of Electrical Equipment Important to Safety For

Nuclear Power Plants, provides guidance regarding the application of 10 CFR 50.49.

CONTACT

This information notice requires no specific action or written response. Please direct any

questions about this matter to one of the technical contacts listed below.

/RA by John Lubinski for/

Ho K. Nieh, Acting Director

Division of Policy and Rulemaking

Office of Nuclear Reactor Regulation

Technical Contacts:

Bill Rogers, NRR/DE

Kamalakar Naidu, NRR/DE

301-415-2945

301-415-2980

E-mail: bhr@nrc.gov

E-mail: krn@nrc.gov

Hukam Garg NRR/DE

Stephen Alexander, NRR/DR

301-415-2929

301-415-2995 E-mail: hcg@nrc.gov

E-mail: sda@nrc.gov

ML062490133 OFFICE

DE:EQ

TECH EDITOR

DE:EIC

BC:EQV

DD:DE

D:DE

NAME

BRogers

HChang

AHowe

HHamze

GImbro

MMayfield

DATE

9/1/06

9/13/06

9/1/06

9/1/06

9/1/06

9/1/06 OFFICE

DORL:

DIRS:O

LA:PGCB:DPR

PGCB:DPR

BC:PGCB:DPR

(A)D:DPR

NAME

DTerao

MJRoss

CHawes

DBeaulieu

CJackson

Jlubinski for

HNieh

DATE

9/1/06

9/5/06

9/20/06

9/13/06

9/20/06

9/25/06

COVER PAGE

DATE:

September 26, 2006

DOCUMENT NAME:

ADAMS Accession #: 062490133 SUBJECT:

NRC IN 2006-14, Supp 1: Potentially Defective External Lead-wire Connection in Barton

Pressure Transmitters

CONTACT

Bill Rogers, 301-415-2945

!!! ROUTING LIST !!!

NAME

DATE

1.

B. Rogers

9/1/06

2.

Tech Editor

9/13/06

3.

A. Howe

9/1/06

4.

H. Hamze

9/1/06

5.

G. Imbro

9/1/06

6.

M. Mayfield

9/1/06

7.

D. Terao

9/1/06

8.

MJ. Ross

9/5/06

9.

C. Hawes

9/20/06

10.

D. Beaulieu

9/13/06

11.

C. Jackson

9/20/06

12.

H. Nieh

13.

Secretary - Dispatch

ADAMS ACCESSION #: ML062490133

TEMPLATE #: NRR-052

9 DRAFT or 9 FINAL

Folder: 9 DIRS

9

9

9 Other _______

Security Rights:

Owner = : NRR-DPR Secretaries

9 Other

Viewer = : NRC Users

Author = : Others

AVAILABILITY:

9 Non-Publicly Available

9 Non-Publicly Available Pending Review

or

9 Publicly Available

9 Publicly Available SISP Review Complete

Case/Reference #: (TAC, WITs, Yellow Ticket, etc.)

Document Sensitivity: 9 Non-Sensitive

9 Sensitive (pre-decisional)

9 Copyright


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