DC RESISTANCE TEST AND WEIGHT MEASUREMENT TEST ON PRAGUE ACCC/TW CONDUCTOR STRANDED BY PT KMI WIRE AND CABLE Tbk COMPANY

Transcription

1 To: Dr. Eric Bosze CTC Cable Corporation 2026 McGaw Avenue Irvine, CA USA DC RESISTANCE TEST AND WEIGHT MEASUREMENT TEST ON PRAGUE ACCC/TW CONDUCTOR STRANDED BY PT KMI WIRE AND CABLE Tbk COMPANY Kinectrics North America Inc. Report No.: K RC-0001-R00 August 31, 2010 Zsolt Peter, Dmitry Ladin, Greg Brown Transmission and Distribution Technologies Business A DC Electrical Resistance Test and Weight Measurement Test were performed on a sample of 710 mm 2 Prague, Aluminum Conductor, Composite Core/Trapezoidal Wire (ACCC/TW) conductor for CTC Cable Corporation (CTC). The conductor consists of a single composite glass and carbon fiber core covered by three (3) layers of thirty-six (36) annealed, trapezoidally-shaped aluminum alloy wires. The composite core is manufactured by CTC and the conductor is stranded by PT KMI Wire and Cable Tbk Company (Indonesia). The complete specification for the conductor is shown in Appendix A. The test conductor met the DC Electrical Resistance and Weight specification as tested. The test was performed between August 25, 2010 and August 26, 2010 in accordance with Kinectrics ISO 9001 Quality Management System by Kinectrics North America Inc. personnel at 800 Kipling Avenue, Toronto, Ontario, M8Z 6C4, Canada, under CTC Cable Corporation P.O. Number PO4437, dated August 6, The test was performed under Kinectrics ISO 9001 Quality Management System. A copy of Kinectrics ISO 9001 Accreditation Certificate is included in Appendix C. TEST OBJECTIVE The objective of the DC Electrical Resistance Test is to verify the measured DC Resistance of the conductor against the manufacturer s specified DC Resistance. The objective of the Weight Measurement Test is to verify the measured weight of the conductor against the manufacturer s stated conductor weight. PRIVATE INFORMATION Contents of this report shall not be disclosed without authority of the client. Kinectrics North America Inc., 800 Kipling Avenue, Unit 2, Toronto, Ontario, M8Z 6C4

2 TEST STANDARD The DC Electrical Resistance Test was based test protocol described in ASTM B193-R92 Standard. The Weight Measurement Test was performed following Kinectrics test procedure. TEST SET-UP DC Electrical Resistance A test sample, approximately 14 m in length, was installed in a hydraulically activated horizontal test machine and tensioned to about 4,390 lbf (1,991 kgf) corresponding to 15% of the conductor s Rate Tensile Strength (RTS). Porcelain insulators were installed at each end of the conductor to electrical isolation purposes (see Figure 1). Small clamps five (5) meters apart were installed over copper foil on the conductor to act as equalizers for the voltage drop measurements (shown in Figure 2). DC electrical current was supplied approximately three (3) meters outboard from the equalizers. Weight Measurement A test sample, approximately three (3) meters in length, was placed on the calibrated weight scale. The test was carried out in a temperature-controlled laboratory at 22ºC ± 2ºC. The instrumentation used to perform this test is listed in Appendix B. TEST PROCEDURE DC Electrical Resistance Current injection clamps were connected approximately three (3) meters outboard from the equalizer locations (5 meters apart) on the tensioned conductor. A calibrated current source of 10 DC Amperes was passed through the conductor. The potential drop between the equalizers was measured by a micro-ohmmeter and displayed directly as micro-ohms. This measurement was taken at five (5) different locations along the length of the test conductor. The DC resistance over one meter of the conductor was calculated. Temperature of the laboratory next to the conductor at the time of testing ranged within 23.3ºC-23.5ºC. Obtained resistance values were corrected to 20ºC by applying the following formula: R 20 = R m / [1+α(T m -20)], where R m is measured resistance, T m is temperature of the conductor, α is temperature coefficient of resistance of the conductor. The temperature coefficient of resistance used for this conductor was: α = 4.08 x 10-3 / C (Aluminum 1350, 61.0% IACS), as specified in ASTM B193-R92 Standard. Page 2 of 12 K RC-0001-R00

3 Weight Measurement A test sample, approximately 3 m in length, was prepared for the test. The sample length was verified with a calibrated measuring tape. The conductor sample was then placed on a weight scale, and the sample weight was recorded. The weight measurement was repeated five (5) times. TEST RESULTS DC Electrical Resistance Five (5) DC resistance readings collected during the test are shown in Table 1 below. Table 1: DC Resistance Measurements Reading Number Measured DC Resistance / 5 m Gauge Length, in micro-ohm DC Resistance / 1 m Conductor Length, in micro-ohm Ambient Temperature, ºC DC Resistance / 1 m Conductor Length, Corrected to 20ºC, in micro- Ohm DC Resistance / 1 km Conductor Length Corrected to 20ºC, in Ohm Average Value Maximum DC Resistance at 20 C as Provided by Manufacturer, micro-ohm Discrepancy (%) Weight Measurement Five (5) sample weight readings collected during the test are shown in Table 2 below. Table 2: Conductor Weight Measurements Reading Number Total Sample Weight, kg Conductor Core Weight, kg Aluminum Only Weight, kg Sample Length, m Complete Conductor Linear density Corrected to 20ºC, kg/km Average Value Manufacturer s Specified Conductor Linear Density, kg/km Discrepancy (%) 1.77 Page 3 of 12 K RC-0001-R00

4 CONCLUSIONS The 710 mm 2 Prague, ACCC/TW test conductor met the DC Electrical Resistance specification as tested. Prepared by: Zs. Peter Principal Engineer Transmission and Distribution Technologies Business D. Ladin Engineer/Scientist Transmission and Distribution Technologies Business G. Brown Technologist Transmission and Distribution Technologies Business Reviewed by: Approved by: C.J. Pon Department Manager Transmission and Distribution Technologies Business ZsP:DL:GB:CP:SZ:JC S. Zangeneh (Acting) General Manager Transmission and Distribution Technologies Business DISCLAIMER Kinectrics North America, Inc (KNAI) has taken reasonable steps to ensure that all work performed meets industry standards as set out in Kinectrics Quality Manual, and that, for the intended purpose of this report, is reasonably free of errors, inaccuracies or omissions. KNAI DOES NOT MAKE ANY WARRANTY OR REPRESENTATION WHATSOEVER, EXPRESS OR IMPLIED, WITH RESPECT TO THE MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OF ANY INFORMATION CONTAINED IN THIS REPORT OR THE RESPECTIVE WORKS OR SERVICES SUPPLIED OR PERFORMED BY KNAI. KNAI does not accept any liability for any damages, either directly, consequentially or otherwise resulting from the use of this report. Kinectrics North America Inc., Page 4 of 12 K RC-0001-R00

5 Figure 1: DC Resistance Test Set-up Figure 2: Typical Equalizer Installed on Test Conductor Page 5 of 12 K RC-0001-R00

6 APPENDIX A DATA SHEET FOR PRAGUE ACCC/TW CONDUCTOR Page 6 of 12 K RC-0001-R00

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9 ISO-9001 Form: QF11-1 Rev 0, APPENDIX B INSTRUMENT SHEET (Ref. DC Resistance and Weight Measurement Tests on Prague, ACCC/TW Conductor) Test Description: DC Resistance and Weight Measurement Tests Test Start Date: August 25, 2010 Project Number: K Test Finish Date: August 26, 2010 Page 9 of 12 K RC-0001-R00 TEST DESCRIPTION DC Resistance Test Weight Measurement Test EQUIPMENT DESCRIPTION MAKE MODEL ASSET # or SERIAL # Micro-Ohmmeter AEMC Model 6250 KIN Digital Meter Thermocouple Fluke Fluke 51 TC-K KIN Measuring Tape Stanley FatMax (34-813) KIN ACCURACY CLAIMED ±1% of Reading ±0.9 deg C ±0.5 deg C < 0.05% of Reading CALIBRATION DATE CALIBRATION DUE DATE TEST USE July 27, 2010 July 27, 2011 DC Resistance April 13, 2010 April 14, 2010 April 13, 2011 April 14, 2011 Temperature October 2, 2008 October 2, 2010 Conductor Length Digital Scale Mettler Toledo SB ±5 grams April 14, 2010 April 14, 2011 Weight Measurements

10 APPENDIX C KINECTRICS ISO 9001 QUALITY MANAGEMENT SYSTEM REGISTRATION CERTIFICATE Page 10 of 12 K RC-0001-R00

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12 DISTRIBUTION Dr. Eric Bosze (3) CTC Cable Corporation 2026 McGaw Avenue Irvine, CA USA Mr. Zsolt Peter (1) Kinectrics North America Inc., Unit Kipling Ave, KB 223 Toronto, Ontario M8Z 6C4 Canada Page 12 of 12 K RC-0001-R00