Hendrix Covered Conductor Manual - Western Power

1 DM#: 5523521 Hendrix Covered Conductor Manual Rev 2 08 August 2013 This Revision Prepared by: Paul Stephen Seiler Prepared by: Marcel Oosthuizen & Rikus Lategan Date for next review: February 2016 Copyright of Western Power ABN 18540492861 Rev 0 February 2009 Uncontrolled document when printed. Printed copy expires one week from print date.

2 Refer to DM for current version DM#: 5523521 3 of 56 Printed 19/09/2013 Stakeholders During the process of document updating, the following positions must be consulted: Position / title Service Delivery Distribution Design Engineering Service Delivery Technical Services Customer Services Network Performance Notification list When this document is updated, the following positions must be notified of any authorised change: Position / title Service Delivery Distribution Design Engineering Service Delivery Technical Services Customer Services Network Performance Copyright of Western Power Any use of this material, except in accordance with a written agreement with Western Power , is prohibited.

3 Hendrix Covered Conductor High Voltage Spacer Conductor System Rev 0 February 2009 Uncontrolled document when printed. Printed copy expires one week from print date. Refer to DM for current version DM#: 5523521 iv of 56 Printed 19/09/2013 Table of contents 1 INTRODUCTION .. 7 2 SCOPE .. 11 3 Hendrix DESIGN PHILOSOPHY ..11 11 11 MESSENGER 14 CONFIGURATION OF COMBINED 15 Hendrix SAG AND TENSION 16 18 PROFILING AND LINE 19 20 SURGE 20 SINGLE PHASE 20 RIVER CROSSING 21 4 CONSTRUCTION.

4 21 5 installation PRACTICE .. 22 POLE DRESSING AND 22 INSTALLING THE MESSENGER 25 INSTALLING THE 26 INSTALLING THE SPACERS AND COMPLETING THE 29 31 TAPS AND 31 32 SINGLE PHASE 35 RIVER CROSSING CONSTRUCTION (LONG SPANS) .. 35 6 CLEARANCES FROM VEGETATION .. 39 7 REFERENCES .. 40 APPENDIX A: Hendrix Conductor ELECTRICAL DATA .. 41 APPENDIX B: INITIAL AND FINAL MESSENGER WIRE STRINGING TENSION TABLES .. 44 APPENDIX C: Covered Conductor SAG TABLES .. 48 APPENDIX D: RIVER CROSSING FINAL TENSION TABLES .. 49 APPENDIX E: installation EQUIPMENT.

5 53 APPENDIX F: Hendrix CONSTRUCTION 55 Hendrix Covered Conductor High Voltage Spacer Conductor System Rev 0 February 2009 Uncontrolled document when printed. Printed copy expires one week from print date. Refer to DM for current version DM#: 5523521 v of 56 Printed 19/09/2013 Lists of Figures Figure 1-1: Hendrix Covered Conductor 7 Figure 1-2: Hendrix River Crossing and long spans.

6 8 Figure 1-3: Hendrix Applications .. 10 Figure 3-1: Hendrix Insulated Covered 11 Figure 3-2: 052 AWA Messenger Wire .. 13 Figure 3-3: RTL-46 Spacer .. 14 Figure 3-4: Phase 15 Figure 5-1: Intermediate/Tangent Bracket (0 6 ) .. 22 Figure 5-2: Angle Structure (7 30 ) .. 23 Figure 5-3: Angle Structure (31 60 ) .. 23 Figure 5-4: Angle Structure (61 90 ) .. 24 Figure 5-5: Termination 24 Figure 5-6: Messenger wire Connected to Pulling Rope .. 25 Figure 5-7: Messenger wire Pulling Section .. 25 Figure 5-8: Securing the Messenger wire onto Intermediate Bracket.

7 26 Figure 5-9: Pulling 27 Figure 5-10: Installing the conductors TM Messenger Wire 27 Figure 5-11: Installing the conductors - TL -30 Tag 27 Figure 5-12: Pulling the Messenger wire 28 Figure 5-13: Securing the Conductors in Angle Stringing Blocks .. 28 Figure 5-14: Conductor Sag Between Spacers .. 29 Figure 5-15: Spacer 30 Figure 5-16: Install Stirrup and Anti-Sway Bar .. 30 Figure 5-17: Covered Tie 31 Figure 5-18: PTS 32 Figure 5-19: Gel Wrap .. 32 Figure 5-20: 33 Figure 5-21: Cold Shrink Splice Covering .. 33 Figure 5-22: Cold Shrink Splice Covering.

8 33 Figure 5-23: Cold Shrink Splice Covering .. 34 Figure 5-24: Cold Shrink Splice Covering .. 34 Figure 5-25: Cold Shrink Splice Covering .. 34 Figure 5-26: Cold Shrink Splice Covering .. 34 Figure 5-27: Cold Shrink Splice Covering .. 35 Figure 5-28: Stringing The Pulling Rope .. 37 Figure 5-29: Pulling 37 Figure 5-30: Pulling 38 Figure 5-31: Striker Wires .. 39 Hendrix Covered Conductor High Voltage Spacer Conductor System Rev 0 February 2009 Uncontrolled document when printed. Printed copy expires one week from print date. Refer to DM for current version DM#: 5523521 vi of 56 Printed 19/09/2013 Lists of Tables Table 1: Hendrix Covered Conductor Properties.

9 12 Table 2: Messenger Wire Properties .. 13 Table 3: Spacer Properties .. 14 Table 4: Combined System Properties .. 15 Table 5: Total Weight and Wind Pressure Areas for 150mm2, 22 and 33kV 16 Table 6: Maximum Span Lengths (Three Phase) .. 17 Table 7: Maximum span Lengths (Single Phase) .. 21 Table 8: Covered Conductor and Spacer Impedance Data .. 43 Table 9: Conductor Sag Data .. 48 Hendrix Covered Conductor High Voltage Spacer Conductor System Rev 0 February 2009 Uncontrolled document when printed. Printed copy expires one week from print date. Refer to DM for current version DM#: 5523521 7 of 56 Printed 19/09/2013 1 Introduction History Bill Hendrix , founder of Hendrix Wire & Cable Inc (1951), developed the Covered Conductor System.

10 He had the vision of improving the reliability of the overhead distribution networks implemented by the local utilities at the time. In 1981, Hendrix Wire & Cable was sold and ownership currently belongs to The Marmon Group. Hendrix Wire & Cable is located in Milford, New Hampshire, USA and supplies underground cable, spacer Covered Conductor , tree wire, insulators, and other overhead accessory products, locally and internationally. What is the Hendrix Covered Conductor System? Hendrix Covered Conductor is a messenger wire supported primary distribution system using Covered conductors in a closed triangular/delta configuration.