Operations training
High Voltage Standard / V1 02072025
2. TERMS AND DEFINITIONS
Term
Definition
Authorised Person
For the purposes of the GWO HV standard, this refers to those with the necessary competence to be authorised to operate HV switchgear in the workplace. The determination of readiness for authorisation is the responsibility of the employer. See also the term ‘ Switching Person’ below. Various terms are used in different regions to indicate that a person holds a record of this competence, and authorisation is often categorised under a range of different HV tasks, duties and responsibilities. This person will require specific training in safe HV operations and working experience in a high voltage operational environment. Once sufficient workplace experience has been recorded, the employer should determine readiness to nominate an individual for authorisation in accordance with company SSOW and regulatory requirements locally. Requirements vary in different regions and in some but not all regions, they must also be a Qualified Electrical Person (or the local equivalent). For the purposes of the GWO HV standard, consider only the Electrical Balance of Plant as relevant to discussion on the HV electrical infrastructure. This is the link delivering power produced by a wind turbine to the electrical network including cable networks of medium and high voltage cables, copper cables and optical fibre cables, onshore or offshore, such as subsea, underground and overhead transmission lines. It includes substation apparatus such as transformers, breakers, switches, relays, and the range of electrical switch gear to protect and/or disconnect turbines or other equipment from the system, and grounding and connections for control rooms, maintenance facilities and point of connection equipment to feed the wind farm’s power generation into the electrical grid. For the purposes of the GWO HV Cable Pulling module, the term ‘breakout’ refers to the terminated cable end of a multi-core power cable (MV / HV cable), which is separated into the component conductors, pre-assembled with field control body and cable lugs. This configuration of cable parts is highly sensitive to even very minor damage and as such, before a main tower cable is pulled into position, it is subject to careful inspection and the application of suitable protection system – referred to commonly as a ‘Rocket / Bullet / Torpedo’ or generically as the ‘cable breakout protection’.
Balance of Plant
Breakout
Global Wind Organisation / www.globalwindsafety.org
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