A UPDATE ON INDUSTRY EMC STANDARDS AND IAEA …

©2014 Analysis and Measurement Services Contact Us

AMS Technology Center, 9119 Cross Park Drive, Knoxville, TN 37923 USA

P. 865-691-1756/ [email protected]

UPDATE ON INDUSTRY EMC

STANDARDS AND IAEA RESEARCH

FOR CABLE AGING MANAGEMENT

M

A

S

PRESENTED BY:

Chad Kiger EMC Engineering Manager

AMS Corporation

Chad Kiger

PRESENTED TO:

26TH ANNUAL

EQ TECHNICAL MEETING

Clearwater Beach, Florida

Wednesday, November 12th, 2014

of 18

Proprietary / Duplication Prohibited

• Industry EMC Standards

– EPRI TR-102323 Revision 4 released in December 2014

– Start of the update to NRC Regulatory Guide 1.180 (Revision 2)

– Revision to IEC 62003

– IEEE has considered an EMC standard

• IAEA Cable Aging Management Research

– Establish qualification methods for new cables

– Qualify condition monitoring methods for aging management and fault finding

– Create a database/website of cable properties and characteristics

Presentation Outline

of 18


EPRI TR-102323 Rev 4 encompasses

updates for newer plant EMC conditions

• Guidelines for Electromagnetic Interference Testing of Power Plant Equipment

• Released in December 2013

• NRC is expected to review

• Updates/Changes

– Clarification of tests methods/limits

– Only limit changes were for RE101/CS114

– Addition of wireless considerations

– ESD is now evaluate instead of optional

– Addresses modular testing

– Reviewed IEC 62003 (standard not endorsed)

– Recommended grounding and connector practices

– Endorses latest revision of test standards

of 18


Efforts have begun to update

NRC Regulatory Guide 1.180

• Guidelines for Evaluating Electromagnetic and Radio-Frequency Interference in Safety-Related Instrumentation and Control Systems

• Anticipated Release in 2017

• Will address areas of concern such as CS114

• May involve site measurements and/or cooperation with the industry to determine the plant’s electromagnetic environment

of 18


IEC 62003 is currently going through

its first revision

• Nuclear Power Plants – Instrumentation and control important to safety – Requirements for electromagnetic compatibility testing

• Original Release in 2009

• Anticipated Update Release is 2018

• Will be expanded to address new technologies such as wireless and variable frequency drives

• May encompass electrical systems in addition to I&C systems

of 18


Several IEEE activities in the EMC arena

• IEEE may look into generating a nuclear specific EMC standard

– Similar to the EPRI/NRC guide

– Guidance for the use of Military standards

– Complement to IEC 62003

• IEEE Std 473 is currently in the beginning stages of resurrection

– Standard for EME site surveys

– Not a nuclear-specific standard

– Originally released in 1985

– Was withdrawn in the 2005 timeframe

of 18


• Acquire representative NPP cables and measure their baseline properties

• Age the cables and repeat the measurements

• Use the results to:

– Establish qualification methods for new cables

– Qualify condition monitoring methods for aging management and fault finding

– Create a database/website of cable properties and characteristics

– Identify areas of future research

IAEA Research Activities – Coordinated

Research Project (CRP) Objectives

of 18


Current U.S. Practice for Cable Aging Management

Risk Rank the Cables

Environmental Assessment

Perform Walk Down

Perform In-Situ Tests

of 18


CRP Timeline

2011 2012 2013 2014 2015

Official Meeting

at SNERDI

(Oct 2014)

Final Meeting at IAEA

(2015)

Original Proposal at IAEA

(Feb 2011)

Informal Meeting at AMS

(Aug 2011)

Official Meeting at IAEA

(April 2012)

Official Meeting at AMS

(July 2013)

of 18


CRP Report

• Introduction

• Fundamentals of cable systems

• Condition monitoring techniques

• Baseline test results

• Cable acceptance criteria

• Related R&D

• Related standards

• Appendix: Details of benchmark work

• Final test results

• Regulatory aspects of cable aging management and condition monitoring

• Validation of cable condition monitoring techniques

• Country practices

• Conclusions and Recommendations

COMPLETED (70%) REMAINING (30%)

of 18


Aging of Samples for CRP Benchmark

• Thermal

• Radiation

• Thermal-Radiation

Irradiation Cell (AECL) Irradiation Thermobox (UJV)

Thermal (AMS and others)

of 18


Thermal Aging Time and Temperatures

for AMS Tests

MATERIAL AGING TIMES

CSPE 120°C

SiR 190°C

PEEK 190°C

XLPE/XLPO 135°C

EPR 135°C

EVA 120°C

8760 Hours = 1 Year

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

of 18


Testing of CRP Cable Samples at AMS

Electrical Tests

• Time Domain

Reflectometry (TDR)

• Frequency Domain

Reflectometry (FDR)

• Insulation Resistance

(IR)

• Capacitance (C)

• Dissipation Factor (DF)

Mechanical and

Chemical Tests

• Elongation at Break

(EAB)

• Indenter Modulus (IM)

• Oxidation Induction

Time (OIT)

• Thermogravimetric

Analysis (TGA)

Indenter EAB

Chemical Electrical

of 18


In-Situ Cable Testing in U.S. Nuclear Power Plants

LCR

RDC

FDR

I-V

IR

TDR

RTDR

of 18


CRP Test Results

Which tests trend with each polymer type? Manufacturer Component Material

EAB IM TGA OIT IR C DF TDR FDR

Shanghai Jacket XLPO - - - - - - -

Shanghai Insulation XLPO -

Changzhou Jacket EPR - - - - - - -

Changzhou Insulation EPR -

Hew Jacket SiR - - - - - - -

Hew Insulation SiR - -

Eupen Jacket EVA - - - - - - -

Eupen Insulation EPR

Habia Jacket XLPO - - - - - - -

Habia Insulation PEEK -

Rockbestos Jacket CSPE - - - - - - -

Rockbestos Insulation XLPE - - - - -

Trending Moderate Trending No Trending

of 18


CRP Test Conclusions

• Mechanical EAB and IM test results correlated very well with

thermal aging except for materials XLPE, PEEK and XLPO.

• Chemical TGA and OIT tests indicated a clear change for EPR

insulation material during increased aging.

• IR and Impedance test results did not correlate with thermal

aging of any insulation material.

• Reflectometry tests proved to detect aging degradation in

silicon rubber. More thermal aging time is required for the other

insulation materials.

of 18


• Develop correlation between insulation and jacket degradation/damage and measurable electrical and/or mechanical properties

• Develop equipment and techniques for in-situ testing of cable insulation material

• Develop prognostic methods to estimate remaining useful life of cables

• Develop equipment and techniques for on-line monitoring of live cables

Cable Research Projects at AMS

of 33


Slide 18

Questions?

A UPDATE ON INDUSTRY EMC STANDARDS AND IAEA …

Documents

Transcript of A UPDATE ON INDUSTRY EMC STANDARDS AND IAEA …