Review of Cabling Techniques and Environmental Effects Applicable

More documents

Recommendations

Info

Review of Cabling Techniques and Environmental Effects Applicable to the Offshore Wind Farm Industry – Technical Report Figure 3.13: Conventional Narrow Share Cable Plough Burying a North Hoyle Offshore Wind Farm Export Cable Figure 3.14: Sea Stallion 4 Cable Plough Burying North Hoyle Export Cables up the Beach (Photo courtesy of The Engineering Business Ltd) 40
Advanced cable ploughs Cable types and installation techniques The category of Advanced Cable Ploughs covers the new generation of cable ploughs which have been designed to achieve increased burial depth for subsea cables of up to depths of 3.0m. Table 3.7 below lists a number of Advanced Cable Plough types. One type of Advanced Cable Plough system utilises a number of water jets fitted within the plough share to fluidise material at the leading edge of the share which in return reduces the required tow force and allows the plough share to penetrate deeper into the seabed. These new multi-depth ploughs have the ability to bury cables up to 3.0m deep. The water jets are most effective in sands, gravels and weaker clay conditions and have limited use in harder seabed conditions. An alternative Advanced Cable Plough type is the Sea Stallion cable plough. This large cable plough can bury cables up to 3.0m deep by using a plough share with a unique geometry to allow this deeper cable burial. Figure 3.15 shows a Sea Stallion cable plough on the quayside with the double cutting plough shoe design and Figure 3.16 shows the same plough about to commence burial operations from the beach. Table 3.7: Advanced Cable Plough Systems. PLOUGH ADVANCED CABLE PLOUGHS Type Maximum Burial Depth Operator Manufacturer MD3 – jet assisted plough 3.0m CTC Marine Projects SMD Hydrovision Ltd Advanced cable plough – deep burial plough Hi – Ploughs – standard share or injector share Up to 3.7m CTC Marine Projects SMD Hydrovision Ltd 2.0m standard share 3.25m injector share Global Marine SMD Hydrovision Ltd Advanced Sea Stallion Up to 3.0m Various The Engineering Business Ltd Sea Plan 8 Up to 1.5m Tyco Submarine Systems Ltd Perry Slingsby 41
Page 1: REVIEW OF CABLING TECHNIQUES AND EN
Page 4 and 5: Review of Cabling Techniques and En
Page 9 and 10: Abbreviations AIS Automatic Identif
Page 11: TTS Temporary Threshold Shift TWA T
Page 20 and 21: 3 Cable types and 18 installation t
Page 82 and 83: 4 Physical change 4.1 Introduction
Page 92 and 93:
Review of Cabling Techniques and En
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
6 Good practice measures This secti
Page 142 and 143:
7 Gaps in understanding Research fo
Page 144 and 145:
References Introduction Sinden, G.
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Appendix A: Standards and codes of
Page 158 and 159:
Page 160 and 161:
Page 164:
Printed in UK on recycled paper. De
show all

Review of Cabling Techniques and Environmental Effects Applicable

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?