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Fall 2007 - Presentations

Check this page periodically to learn about the Presentations scheduled for the Spring meeting.

• Special Activities
• Opening Session
• Mini-Expo Vendors
• Subcommittee A
• Subcommittee B
• Subcommittee C
• Subcommittee D
• Transnational Luncheon
• Educational Program

Please Note: This is a only a listing of the presentations and
UNLESS NOTED, DOES NOT IMPLY THE ORDER IN WHICH THEY WILL BE PRESENTED

• Special Activities

  Opening Session
   

  • Opening Session Slides
  • Standards Update
• Mini-Expo Vendors
  • Kinectrics
  • Houston Wire and Cable
  • IMCORP "IMCORP is the leading provider of underground power cable reliability enhancement solutions.  The company’s patented partial discharge (PD) diagnostic technology, proven through testing of thousands of miles of underground cable, pinpoints the exact location of cable defects with unsurpassed accuracy.  In addition to locating existing cable and accessory defects, IMCORP’s non-destructive test methodology provides predictive diagnostic information concerning future cable performances. IMCORP’s reliability improvement process is a proactive approach that is designed to be integrated into a clients existing reliability program.  The process is proven to dramatically improve cable reliability at a significant lower cost."
  • The Mears Group
  • Power Systems Integrity, Inc.
    Power Systems Integrity, Inc. “PSI provides leading edge automation systems like CEMesh® and live line Phase Identification that simply PERFORM. Our automation systems are used for monitoring and control of electric power systems at a significantly lower cost than other methods available to date. PSI product solutions offer low cost, with ease of use, and were designed to address the needs of the aging power distribution infrastructure. For more information, please go to www.psinteg.com.”
  • Sensa, a Schlumberger Company
    Combining specialist optical technology with an in-depth knowledge of the power industry, Sensa delivers a range of solutions to optimize the management and operation of transmission and distribution assets.
    Through continuous condition monitoring of power cables; underground; overhead; submarine and in tunnels, Sensa solutions deliver:
    Increased network optimization
    Balanced revenue and cost management
    Increased asset utilization
    Highest levels of network protection
    Real time condition assessment
    Since installing the first power industry monitoring systems in 1991, our capabilities and expertise have developed and continue to provide best in class solutions and value for our clients. Full details about our skills and experience are available at www.sensa.org.
  • UtilX Corp "UtilX® Corporation is the leader in developing and applying life-extension technologies to water-damaged power and telecommunications cable. We are known worldwide for our patented CableCURE® silicone-based injection fluids, which have restored over 70 million feet of cable and saved our customers more than $1 billion in replacement costs. As the sole source provider for the CableCURE® injection process we can help you increase your cable reliability, decrease Capital and O&M budget dollars by rejuvenating your aging underground infrastructure in a customer friendly manner. For more information, please go to www.utilx.com."
• Subcommittee A - Cable Construction and Design
  • 9:15-9:20 - Subcommittee Business, Announcements, John T Smith III, General Cable, Chair; John T Nierenberg, Nierenberg Consulting Corp., Vice Chair
  • 9:20-9:30 - "The Chemistry of Water Tree Rejuvenation”, Wayne J. Chatterton, Ph.D. and James Steele, Utilx Corporation
    Abstract: In the past 19 years over 75 million feet of medium-voltage power cable has had its insulation treated with phenylmethyldimethoxysilane. This presentation will explore in-service cables that have had their insulation chemically rejuvenated for between 13 and 19 years. Chemical examination of the insulation through infrared spectroscopy and the results of characteristic testing of various cable properties including ac breakdown testing will be discussed.
  • 9:40-10:00 - Performance of Modern Cables in Central Europe, Detlef Wald (1) and Annika Smedberg (2); (1) Borealis Polymers NV, Schalienhoevedrëef 20T, B-2800 Mechelen, Belgium, Detlef.Wald@borealisgroup.com ; (2) Borealis Scandinavia AB, S-44860 Stenungsund, Sweden, Annika.Smeberg@borealisgroup.com
    Abstract: After the poor experience with the first generation of XLPE cables the industry has made a big effort to improve the quality resulting in the second generation of XLPE cables. In the beginning of the eighties the production of XLPE cables were changed due to the early failures of first generation XLPE cables. These cables have now more than 25 years of service experience so that a review of the improvement of service life can be made.

    

    Figure 1. Failure rates of cables in installed at E-ON Bayern, EBY-Region Ostbayern
    
    This paper will describe several failure mechanism related to the first generation of XLPE cables. It will give detail figures in long term testing of different constructions and qualities of cables comparing the failure rate of first generation XLPE cables and second generation XLPE cables in different network and will give different tests that are done to determine the life time of a cable system, showing the influence of different changes in the production process. The compound producers took action to improve the cleanliness of their compounds and polymer water tree retardant compounds, so called copolymer insulation.
    These numbers are reporting the failures of cables during the year 2003 till 2005 depending on the year of production. It highlights the improvements that were made after the first experience of water treeing in Germany. Further failures rates are available and will be explained in detail in the paper. In a study done by utilities the projected life time of the second generation cables show it to clearly superior to the first generation. Second generation power cable insulated with polymer WTR compounds are giving a significantly lower failure rate over time. In addition the paper will highlight the influence of product handling and cleanliness of the performance in the two year test, giving specific examples and performance in the two year test protocol.
    In 2000 the wet-ageing protocol has been harmonized in the Cenelec region. Tests have been done to compare the old and the new VDE test. The new test is the same than the Cenelec test. It showed that the number of vented trees is lower than before, however the length is significantly longer.
    It will further emphasize the performance of newly developed compounds that are currently introduced into the market.

  • 10:00-10:30 - Break
  • 10:30-10:50 - "Electrical Tree Initiation Revisited”, S. Kisin, R. Eaton, J. Den Doelder, P. Caronia, Dow Chemical Wire & Cable
    Abstract: One of the major application fields for solid dielectric polymers is their use as insulating materials for power cables. Since the electrical aging of the insulating polymeric materials is one of the most important factors affecting the lifetime of power cables, researchers have studied this field and developed complex electrical tree models. In our work, we developed a simplified model for electrical tree initiation within an insulation material. This simplified model was used to analyze data for the electrical tree initiation of polyethylene stabilized with polycyclic aromatic hydrocarbons. Based on electron affinities and ionization potentials calculated using quantum mechanics, we identified parameters for good voltage stabilizers to improve electrical tree initiation resistance.
  • 10:50-11:10 - “Cable Design in the large 400 kV European cable systems”, Pierre Argaut, Silec Cable
    Abstract: In Several occasions at ICC, the main big European 400 kV cable projects under completion have been presented. As recalled, each time, tests specifications included in IEC 62067 have proved to be the sole of the technical specifications attached to each individual project. A few years ago, CIGRE Working Group B1-06 had been launched with the goal to prepare recommendations for evolutions of IEC 62067 taking into account the expected innovations in cable technology, the need to reduce the time to market and the overall cost to introduce new evolutions as well as service experience collected by the Cable Industry. The work of CIGRE WG B1-06 has been completed in August 2006 and has been published in CIGRE Technical Brochure 303. This work is based on the service experience gained so far in EHV cable systems and comprises a functional analysis tool to manage changes in components (cables and accessories). As seen is the table published by Cigre WG B1.06, most of the existing in service EHV cable systems considered by WG B1.06 had been installed in Europe. The purpose of this presentation is to recall for each of these systems the cable design including the electrical stresses adopted, the cable conductor size, the metallic screen design, water barrier, oversheath...
  • 11:10 - 11:30 – “Accelerated Cable Life Test (ACLT) Results with Reduced Insulation Wall Thicknesses", John T. Smith, III, General Cable Corporation
    Abstract: The IEEE P1407 Draft Guide for Accelerated Aging Tests for Medium-Voltage (5 kV – 35 kV) Extruded Electric Power Cables Using Water-Filled Tanks recommends that maximum conductor shield test stresses be limited to 300 V/mil (12/kV/mm). This presentation will show historical and current Accelerated Cable Life Test (ACLT) results of reduced insulation wall test specimens in the 200 V/mil (8kV/mm) – 500 V/mil (25kV/mm) range. Preliminary results will show that for several past and current commercially-available conductor shields and tree-retardant crosslinked (TRXLPE) insulation systems, characteristic life and testing times are  2X that of full-size (175-mil) insulation wall cables at the recommended maximum conductor shield test stress of 300 V/mil (12kV/mm). This result is demonstrated in two (2) different ACLT protocols, and for two (2) different reduced insulation design thicknesses. ACLT results at higher (>400 V/mil (16kV/mm) show significant reductions in characteristic life and testing times. Thermal preconditioning of the reduced wall test specimens to remove all crosslinking by-products (acetophenone, dimethylbenzylalcohol, alpha-methylstyrene) also contributes to a reduction in characteristic life and testing times, and provides an estimation of the “true” dielectric life of the insulation system. Implications of these results on insulation wall cable design are discussed.
  • 11:30-11:50 -- “Does Dispersion Matter for Field PD Measurement of Shielded Power Cable?”, Essay Wen Shu and Steven Boggs, Institute of Materials Science, University of Connecticut
    Abstract: Dispersion, the variation of electromagnetic propagation velocity with frequency, occurs in shielded power cable as a result of the frequency dependent dielectric properties of the semiconducting layers. If we think of the PD pulse in the frequency domain, dispersion has the potential to cause a relative phase shift among the Fourier components which could cause severe distortion of the PD pulse as a function of distance propagated. However, the same material properties which cause dispersion also cause high frequency attenuation which has the potential to attenuate the Fourier components to insignificance before they can disperse to a degree which causes appreciable distortion of the pulse. We have examined this problem for a range of hypothetical as well as typical shield properties to determine the answer to this question.
  • 11:50-12:10 - “High Frequency Attenuation in Transmission Solid Dielectric Class Power Cable”, Jim Guo, Charles Xu*, and Steven Boggs, Institute of Materials Science, University of Connecticut (*Presently with Underground Systems, Inc., Armonk, NY.)
    Abstract: Transmission class solid dielectric comes in several constructions, including concentric neutral and corrugated metal sheath. In all cases, such cable includes components not present in distribution cable, such as “bedding layers”. We have measured the high frequency attenuation of two constructions of transmission class shielded power cable and found them to be quite different. We also measured the properties of the materials with which the cables were constructed, used these material properties to model high frequency loss in these cables, and achieved good agreement between computations and measurements. This resulted in the realization that certain details of cable construction can have a substantial effect on the high frequency loss, and these will be discussed during the presentation.
• Subcommittee B - Accessories
  • 2:00-2:15 pm – Opening Announcements, Tom Champion, NEETRAC
  • 2:20-2:50 pm – MV ShearBolt Connectors – Design and Performance, Barry Johnson, Tyco Electronics
     

    Abstract:  The presentation will cover the following topics:

    a) Contact physics – what happens at the contact interface

                Degradation mechanism

    b) Factors that influence connector performance

                Material properties – trade-offs

    c) Basic design of Mechanical Shear-bolt (S/B) Connectors

                Features/benefits versus other technologies

                Metal inserts versus plastic ring

                Different shear-bolt systems (advantages)

    d) Connector test standards

                IEC, BS, German, other

                Explain pass/fail criterion IEC

                ANSI versus IEC

                Importance of short circuit sequence

                Which standard is better and why?

    e) Test experience and results

    Biographical Sketch:  Barry Johnson is an electrical engineering graduate of the University of Toronto and holds an MBA from Schulich School of Business in Canada.  He has spent 25 years in the power engineering industry, working with Burndy, AMP, and tyco Electronics.  Currently, he is Product Engineering Manager with the tyco Electronics, Energy Business Unit in Toronto, Canada.

  • 2:50-3:15 pm – Splices and Connectors, Bill Taylor, 3M Austin Center
    Abstract: The presentation will provide a brief discussion about what connector designations mean and the requirements of connectors in splices and terminations according to IEEE-404 and 48. Then we'll discuss the most common causes of connector failures in the industry, which is crimping using the wrong dies, too few crimps, etc., with lots of pictures showing the associated problems of thermal runaway due to high resistance connections.
    Biographical Sketch: Bill Taylor received a BSEE degree from the University of Texas in Austin in 1975. He spent 13.5 years as a plant electrical engineer Lubrizol in the Houston area. He has been with 3M since 1989, where he is currently a senior specialist product development engineer. He is responsibility for medium voltage cable accessories. He is the immediate past chair of the ICC.
  • 3:15-3:30 pm – Break
  • 3:30-3:45 pm – Educational Moment: Switching and Fault Close Testing of 25 kV Loadbreak Connectors, Tim Wall, Alabama Power Company - Introduction to Educational Moment
    Abstract: A brief discussion of separable connector switching and fault close testing will be provided, describing some of the issues that are important to the testing, but not addressed in the current version of the IEEE 386 standard.
    Biographical Sketch: Tim Wall is an Engineer with Alabama Power Company in the Power Delivery Distribution Engineering Services Department. He has been married to Linda for 36 years, having two sons and a daughter, two grand daughters and one grand son. He has been with Alabama Power Company for 34 years, gaining experience in: Distribution System Studies, Budget and Planning Fusing, Overcurrent Protection and System Coordination Fault Current Calculations Arc – Flash Energy Calculations Automatic Transfer Switches Power Quality System Operating Procedures Distributed Generation Stray Voltage He is responsible for the selection of cable accessories used by the Southern Company on underground distribution systems. He is an Associate Member of the International Association of Electrical Inspectors, a Member of the National Fire Protection Association since 1989, Past Principle Member of National Electric Code Panel # 18, Principle Member of National Electric Code Panel # 6, a member of Southeastern Electric Exchange-National Electrical Code Committee, a member of EEI - Electric Light and Power Task Force on National Electrical Code, and a member of IEEE since 1999. He is active on IEEE Standard 1547, Distributed Generation Interconnection Standard Committee, and IEEE 386 Separable Connectors Standard Committee. Tim is a Registered Professional Engineer in the state of Alabama, # 26774-E.
  • 3:45-4:15 pm – Aluminum Crimp Connectors on Strand Filled Connectors, Vitaliy Yaroslavskiy, Cable Technology Laboratories
    Abstract: Within an EPRI project on comparative evaluation of medium voltage joints and terminations, a problem with thermal runaway of aluminum connectors applied on #1/0 AWG strand-filled aluminum conductors surfaced. Detailed experimental data illustrating this problem are reported. Reasons for the thermal runaway were experimentally evaluated, indicating that the strand-filling compound is one of the components participating in the problem. Gaps in the system of industry specifications, which make possible thermal instability of the connectors, will be discussed.
    Biographical Sketch: Vitaliy Yaroslavskiy was born in Russia on September 21, 1950. He received an MS degree in Thermo-Physics from the Moscow Power Engineering University in 1973. Until 2000 he worked for the Russian Research Institute for Metrological Services in Moscow, developing methods and measurement standards for precise high voltage measurements. He has been associated with Cable Technology Laboratories since 2001 as a Senior Test Engineer and lately as the VP of Technology with expertise in testing and performance evaluation of medium and high voltage cables and accessories. Mr. Yaroslavskiy is the author of over 60 technical papers.
  • 4:15-4:45 pm – Development of an Enhanced Connector Testing Protocol for MV Cable Joints, Tom Champion, Rick Hartlein, NEETRAC
    Abstract: The IEEE 404 Standard for MV cable joints contains an excellent series of tests that effectively evaluate the performance of a cable joint as a system. However, this is a one time test on a specific joint design that represents an entire series of joint housing/connector combinations. Since a wide variety of conductor connectors can be used within a given joint housing design, it can be difficult to know if a given connector design will perform adequately within a given housing design. IEEE 404 attempts to address this issue by requiring that connectors used in medium voltage cable joints be tested according to ANSI C119.4. While the ANSI protocol is a reasonably good test for bare overhead connectors, it does not address the fact that connectors in a MV joint are covered with a joint housing that will significantly impact the thermal performance of the connector. For several years, the IEEE ICC has recognized that the industry needs a test protocol that specifically addresses the performance of connectors used in MV cable joints. This is becoming increasing important in light of the fact that utilities are increasing load on their underground cable systems. This presentation reviews this issue and suggests test protocols that can be used to better evaluate connectors used in MV cable joints.
    Biographical Sketch: Tom Champion received a Bachelor of Electrical Engineering degree from the Georgia Institute of Technology. He has been a member of the ANSI C119 committee and involved in the writing of numerous industry standards covering various products used by utilities. He is the author or co-author of papers on cable qualification testing, separable connectors, overhead line ampacity, failure analysis. He worked for Georgia Power Company in various capacities and now works for NEETRAC, A Center of Georgia Tech.
  • 4:45-5:00 pm – National Cable Splicing Certification Board Update, Mike Dyer, Salt River Project
    Abstract: An update on the effort of the National Cable Splicing Certification Board (NCSCB) efforts to establish a nationally recognized certification program will be provided, including information on knowledge areas covered, results of test efforts to date, and future testing schedules.
    Biographical Sketch: Mike Dyer is an Executive Engineer at SRP responsible for T&D materials and methods. He is a professional engineer (PE) in electrical engineering in the state of Arizona, a voting member of ANSI C2 NESC Sub. 7 on Underground Lines, A voting member of ANSI C119 on connectors, Subcommittee Chair of the Engineering and Structures group within the Western Underground Committee, an engineering board member of the National Cable Splicing Certification Board, a voting member of ICC and AEIC, and author or coauthor of various technical papers on related engineering subjects. He is a graduate of the University of Illinois.
  • 5:00-5:20 pm – Open discussion on connectors
  • 5:20-5:30 pm – Vice-Chairman’s Closing Remarks, Harry Yaworski, Tyco Electronics
• Subcommittee C - Cable Systems
  • 2:00-2:05 pm - Chairman’s Opening Remarks, Nagu Srinivas, Utilx
  • 2:05-2:30 pm - A Secondary Network Monitoring with Meshed PLC Communications,  Harold Marsden, Power System, Integrity, Inc.
    Central Hudson Gas and Electric has installed a Secondary Network Monitoring System that uses the power line as a medium for transmitting messages from one device to another within a local electrical network. The direct benefit of using this technology is that products do not need to be physically wired together, making installation simple and lowering costs. This Secondary Network Monitoring System will enable utilities to see and measure electrical problems in their network before they happen and then will direct service crews to the exact location for a safe and effective repair. This will translate into significant capital investment savings for electric power delivery companies. A key feature of this Secondary Network Monitoring System is the two-way PLC communications between the smart sensor nodes and the gateway via the power lines. The result is a multipoint two way communication system for remote sensing and control of utility assets and circuits. The Secondary Network Monitoring System has demonstrated excellent communications reliability from end to end by using Meshed PLC communications for sensing and control of apparatus in utility secondary network applications
  • 2:30-2:50 pm - How Accuracy Impacts the Economic Benefit of Cable Diagnostic Programs, Nigel Hampton & Joshua Perkel, NEETRAC
    Abstract: Utilities across the country have long sought techniques (“magic bullets”) that can help them determine the parts of their underground cable systems that are on the verge of failure. If these parts can be identified early enough then reliability can be improved and many of the costs associated with failures can be avoided. This desire has led to much technically challenging and valuable work in the area of condition assessment (diagnostics – loss, PD, VLF etc and historical predictions). Generally workers in this field have been seeking solutions that deliver perfect accuracy in all cases; both for the circuits that need action and those that do not. On the practical level the fundamental issue is just how much accuracy is needed from the diagnostic.
    As part of the work performed during the Cable Diagnostic Focused Initiative (CDFI), we have come to the realization that computing the accuracy for diagnostic testing is not a simple task. The reason for this is that there are several different accuracies that can be calculated. The choice of which one to use depends upon the ultimate purpose of the program. In fact, this becomes very clear when estimating the benefits of diagnostics, especially when it can have tremendous implications for the utility’s economic “bottom line”. Even our initial estimates have shown that one does not need a “perfect” diagnostic to achieve the goals of reduced maintenance / renewal costs and improved reliability; though of course the question remains: How “good” is good enough?
    This presentation will start at the final result, namely with the calculation used to estimate the benefit and will then work back towards the start to show how accuracy comes into the model. At this point we will illustrate, using some practical examples, how we compute the accuracies and some of the associated issues. In real life this accuracy calculation needs to be repeated a number of times to determine the best overall program for a particular area. We have found in the course of our work that in most practical cases there is no single “magic bullet”, just shells of larger calibers.
  • 2:50-3:15 pm - Making Remaining Life Predictions for Power Cables Using Reliability Analysis, Jey K. Jeyapalan, Dr. Jeyapalan &Associates
    Abstract: Most underground cable owners would like to know what the probability is for failure of a given cable asset as a function of material type, function type, age of the asset, geotechnical environment, and other factors, when we know past failure distributions, predominant failure mechanisms, and other attributes. While most underground electric utilities have collected voluminous data that could guide them into better buried cable management in the future, the use of suitable reliability analyses in their asset management programs have been beyond their reach. Often the replacement and rehabilitation decisions have been based on simple rules of thumb rather than either good science or statistical analyses even when tremendous amount of resources and time are expended on benefiting from the use of state-of-the-art cable assessment techniques. When utility engineers struggle to convince the public, shareholders, and the legislators the dire need for increased rate of investments into buried cable assets, it is our obligation to engage the most suitable analytical tools to make the best use of past failure data and available cable infrastructure capex funds. This paper provides a methodology on how sound reliability analysis tools can be used in such management decisions to maintain and operate our underground cables better.
  • 3:15-3:30 pm - Break
  • 3:30-3:45 pm - Dissipation Loss Factor Measurements (DF) on LADWP’s Underground Transmission Cables, Hassan Motallebi, LAWP & John Cooper, Power Delivery Con.
    Abstract: LADWP owns and operates approximately 52- circuit miles of 230-kV and 76-circuit miles of 138-kV cables. In recent years, in addition to routine radiography and oil testing, LADWP has performed DF measurements on its pipe-type cables. The cables most frequently tested for DF have been Tarzana-Olympic Line 3, Scattergood-Olympic Line 2, and Toluca-Van Nuys Lines A and C. These cables have been repaired in the past due to cable movement inside the pipes, which was detected by radiography. DF measurements were one of tools used to assess the condition of these cables. The results of the most recent DF tests are discussed in this presentation.
  • 3:45-4:10 pm - Defect Specific Diagnostics: Based on Ten Years of Field Experience, Ben Lanz, IMCorp
    Abstract: Off-line defect specific cable diagnostic testing data collected for various cable types, applications and age over the past ten years has resulted in an incomparably rich knowledge base. Various correlations of data from this knowledge base will be discussed. Results will demonstrate the financial and reliability value to cable owners associated with this diagnostic tool. The discussion will also cover the cable service reliability improvement which can be obtained with this method as compared with that obtained with other testing methods. Finally, the role of this diagnostic method in the optimization of cable rejuvenation strategy will be demonstrated.
  • 4:10-4:35 pm - Important Aspects of PD Detection During After-Laying and Diagnosis of HV Power Cables, Ed Gulski, Delft University Technology
    Abstract: The application of PD detection for after-laying tests of new installed HV cables and for diagnosis of service aged cable systems cables is getting more and more attention.
    With regard to after-laying tests IEC and Cigre are working on recommendations related to sensitivity check procedures. In this contribution important aspects of after-laying testing of transmission power cable accessories using non-conventional techniques are discussed. As the non-conventional system is based on the detection of high frequency signals being emitted by the discharge, each power cable accessory is equipped with either an internal or external VHF sensor to decouple the partial discharge signals. Therefore sensitivity checks which can be used to validate the sensitivity of the system for a certain required PD level. Examples of on-site sensitivity verification are presented, before the actual PD measurements take place.
    With regard to installed cables PD measurements are valuable indicators for the quality level of the cable insulation. In particular the interpretation of measured PD levels and localized PD sites in cable accessories and cable insulation is of importance for assessment of actual insulation condition. In this contribution experiences on PD interpretation of power cables in transmission network are discussed.
  • 4:35-5:00 pm - Advanced Solutions for On-Site Diagnosis of Distribution Power Cables, Frank Petzold, Seba KMT
    Abstract: A medium voltage PILC or XLPE power cable network represents large investment, and it is from economic point of view essential to extend the life time of the medium voltage power cables as much as possible.
    It is known that with increasing age, the number of faults will increase and the power supply reliability might be reduced. Important symptoms of this degradation process can be related to discharging local insulation imperfections or defects which may occur in particular cable sections or cable accessories: joints, terminations. About 50% of failure in medium voltage power cable networks are related to insulation problems.
    Insulation problems may have different origins : by new cables in joints and termination due to mounting faults or by cables in service due to degradation of cable insulation, or degradation of joints and terminations.
    It is known from the past, that partial discharges are very sensitive symptoms of a presence of insulation problems. Major criteria of partial discharges can be described by PD inception voltage, PD amplitude and PD phase resolved patterns. Moreover from the point of view of a utility the following goals are important:
    1. Sensitive determination of the insulation condition of medium voltage power cables.
    2. Without destructive stressing identification of high risk section of a cable circuit.
    3. Before failure occurs replacement only of the defective part of cable or accessory.
    4. Applicable for after laying PD testing of polymeric insulated power cables: detection of mounting faults.
    As a result the following requirements can be defined for medium voltage power cable diagnostic tools:
    1. Non destructive for the cable insulation and uses AC voltage stress conditions.
    2. Uses standardised quantities.
    3. Provides distinction between different types of insulation problems.
    4. Provides PD site location: PD mapping.
    Assuming sensitive detection of critical PD sites by using damped AC voltages, in the last 5 years this method has become at utilities worldwide accepted. Based on the experiences and to provide the diagnostic information more efficient in this contribution a new generation of advanced PD detection technique will be presented. Moreover the combination of voltage withstand test and sensitive PD detection are discussed from the point of view of
    1. PD diagnosis of existing cable systems
    2. After repair testing of a cable system
    3. After laying test of new cable systems
  • 5:00-5:25 pm - Diagnostic Testing of Stochastic Circuits, Glen Bertini, Novinium - Technical Paper
    Abstract: The desire of circuit owners to prioritize their underground cable rehabilitation expenditures has spawned a variety of diagnostic testing tools. The goal of these diagnostic tests is to separate the “at risk” cable population into the subsets of those that are likely to provide reliable service for some time and those that are likely to fail first – the “good” from the “bad.” A decade of field failure data, covering over 18,000 km of cable installed over the 3 decades between 1969 and 1999 examined in this paper, provide statistically significant insights into the stochastic nature of cable reliability. A low cost method to prioritize circuit rehabilitation efforts is described. The method provides the foundation for the economic modeling and optimization of various rehabilitation strategies.
  • 5:25-5:30 pm - Vice-Chairman’s Closing Remarks, Ted Nishioka, Arizona Public Service
• Subcommittee D - Generating Station and Industrial Cables
• 8:00-8:15 - Subcommittee D Introduction

• 8:15-8:45 - What is an Instrument Cable by Nader Moubed of Anixter, Canada
   

  Abstract: This presentation will define “What is an instrument cable”, identify its characteristics, describe its constructions, and discuss the numerous applications of instrument cable in an industrial or generating station environment.

• 8:45-9:15 - Wire and Cable Changes in the 2008 National Electrical Code by Jim Daly, General Cable
   

  Abstract: The 2008 NEC (Code) has completed the current revision cycle and will be published in October 2007. This presentation will address the significant changes that impact wire and cable. Revisions include the 2400V limitation on nonshielded conductors, ambient temperature adjustment for conduits exposed to sunlight on or above rooftops, the new concealable nonmetallic extensions, and deletion of the fine print notes referencing NFPA 13. A brief overview of the decisions reached on numerous appeals of the panel actions to the NFPA Standards Council will be presented. Also, a summary will be provided on the activities of the NEC/CEC Ampacity Harmonization Task Group established by NFPA and CSA to harmonize ampacities and all related correction and adjustment factors between the NEC and the CEC.

• 9:15-10:15 - Fire-Induced Spurious Actuation Testing of Armored-Cable Control Circuits by Steve Graham of Duke Energy
  Abstract: Duke Energy’s nuclear stations are transitioning their safe-shutdown fire-protection program from an onerous 10CFR50 Appendix R rule to a performance-based, risk-informed program in accordance with 10CFR50.48(c) and NFPA-805. The probability of spuriously actuating certain control components such as a motor-operated valve is a required input for the Fire Probabilistic Risk Assessment (PRA) being performed as part of the NFPA-805 transition. Previous (2001) EPRI / NEI fire testing provided limited information on control-circuit spurious-actuation probability in armored cables, both in terms of the number of test cases and the absence of certain configurations such as un-jacketed armored cables, un-grounded AC sources, and DC circuits. Therefore, since the vast majority of its nuclear station cables are armored, Duke performed a 2006 series of fire-induced spurious-actuation testing focused on armored-cable control circuits to address the previous limitations. In addition to providing the foregoing background, this presentation reports on the performance and results of the Duke testing.
• 10:15-10:30 - Break

• 10:30-11:00 - Resurrecting A Withdrawn Standard, IEEE 422 “IEEE Guide for the Design and Installation of Cable Systems in Power Generating Stations” by Gary Engmann, Burns & McDonnell
   

  Abstract: IEEE 422 was approved and issued in 1986 at a time when large coal fueled steam-electric generating stations were being built. The Guide was subsequently withdrawn in 1994, since the information in the Guide did not reflect the application or technology of generating station cable systems at that time, when new generating station design and construction was simple cycle and combined cycle gas fired combustion turbine units. However, in the last several years fueled by a resurgence of coal fueled generation stations, the technology of the station control and protection systems has advanced significantly and application of “hard wired” cabling systems is giving way to networking media. The project will produce a revised IEEE 422. A Working Group has been formed to discuss title, scope, purpose and review the sections of the IEEE 422 for applicability. Currently there are nine members. The first organizational Working Group meeting will be held in the afternoon of November 6. Volunteers and participation are welcome.

• 11:00-11:30 - 2007 Codes & Standards Activities at CSA and UL by John Merando, Bechtel
   

  Abstract: This presentation will provide an update to code and standard work going on at Canadian Standards Association (CSA) and Underwriter Laboratories (UL) during 2007. The presentation will identify the codes and standards issued by each group during 2007 and provide some insight into future code and standard changes in process.

• Transnational Luncheon
  • Introduction by Harry Orton
  • Calendar of Events by Willem Boone
  • Jicable 2007 by Frédéric LESUR
  • Thermal survey - Saudi to Bahrain 400 kV Submarine Link by Deepak Parmar, Geotherm Inc
  • A Submarine Cable TR Survey on the West Coast (California) by Deepak Parmar, Geotherm Inc
  • The Shanghai "Shibo" Project (2500 mm² Cu 500kV, 17 km link) was awarded to Nexans in 2006 by David Dubois, Nexans
    The presentation will include the main features and challenges of the project. The type tests have stated, the test progam will be discussed. Also some data of other 500 kV cable projects Nexans in Russia will be presented.
  • TU Berlin Comparison of 0.1-50 Hz VLF by Martin Baur, BAUR Prüf- und Messtechnik GmbH
    This presentation shows the latest information regarding "Proof of Pinciple" using VLF for higher voltage levels up to 400 kV.
  • Completion of double circuits of 345kV XLPE cable line in Tainan Science Park in Taiwan by Mr. SHOJI MASHIO (J-Power Systems Corporation)
    J-Power System has recently completed two circuits of 345kV XLPE cable lines in Taiwan for the route length of 1.6 miles. In order to provide the bulk power transmission capacity (2.2GVA/circuit), double conductors with cross-section of 2500mm2 (approx. 5000KCM) have been adopted. The two circuits of cables were installed in tunnel with trefoil touching configuration and vertical snaking shape to minimize the required spacing. Optical fiber sensors are attached on the cable surface for the entire length of cable route for distributed temperature monitoring in real time. In order to minimize construction period, long section length (3000ft) of cable drums were delivered and jointed with the minimized numbers of prefabricated joints. All cable joints and cable sealing ends were tested with partial discharge measurement in addition to the high voltage test after the installation in accordance with IEC 62067. The construction of the cable line was started in Feb. 2007 and was commissioned in July 2007 (180 days) successfully.
  • Large 220 kV Cable System in LISBOA (Portugal), Pierre Argaut, Silec Cable
• Educational Program - "Nuclear Power Plants Cable Systems"
  • Insulated Cable Qualification-: Nuclear vs Commercial by JAMES V. FITZGERALD, Okonite, USA
  • Condition Assessment of existing power plant cables by Dr. Anand AnandaKumaran of Kinectrics
  • Halogen Free Cables for Nuclear Power Plants, Lukas von Laue, Nexans, France
  • Presentation by Mr. Kenji Araki -Hitachi Cables

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