Operations training
High Voltage Standard / V1 02072025
11) Recognise different HV cable types and how cable properties impact safe, efficient pulling operations (Knowledge, basic level)
ELEMENT 2.1 - UNDERSTANDING WHAT HAPPENS TO A CABLE WHEN IT IS PULLED
Learning objectives:
12) Describe what happens to HV cables when subjected to mechanical pulling stresses (Knowledge, basic level)
The instructor shall:
Introduce a range of HV cable pulling scenarios in the wind industry to provide context for the task including:
a. pulling of WTG power cables into the tower at the offshore pre-assembly stage
b. pulling of WTG power cables into the tower onsite during onshore WTG construction
c. pulling of a replacement power cable in the WTG tower onshore or offshore, due to a failure during the operations phase
Highlight the difference in cable pulling of windfarm inter-array HV cable from the cable vessel to the transition piece offshore compared to pulling of the tower cable
a. Clarify common terms used to refer to the power cable installed in the tower or as part of the subsea inter-array (HV cable and MV cable)
Illustrate the different way a cable is secured for pulling depending on context
a. subsea inter-array commonly utilising a cable pulling head tool
b. tower cables commonly utilising cable socks for pulling due the termination of the cable end in a preassembled breakout and the use of a breakout protection system
Explain what happens to a cable when it is pulled using examples of different cable pulling work to illustrate the effects on the cable
Show participants what happens to HV cables when subjected to mechanical pulling stresses illustrating:
a.
normal working and mechanical pulling stresses
Global Wind Organisation / www.globalwindsafety.org
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