8) Essential Knowledge and Associated Skills (EKAS): This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of maintaining energised high voltage distribution overhead electrical apparatus (stick). All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies. KS01-TDP13A Live lines working up to 132 kV with hotstick Evidence shall show an understanding of live lines working up to132 kV with hot stick to an extent indicated by the following aspects: T1 Legislation and Regulations encompassing: Legislation, standards and codes Supply authority regulations Industry guidelines and enterprise requirements T2 Safety Precautions for High Voltage Live Work up to and including 132 kV (poles) utilising live High Voltage stick method encompassing: Minimum approach distances OH&S hazard and precautions Assessing and controlling risks Effects of excessive conductor temperature on insulating equipment Personnel protective equipment Integrity of insulation Emergency response, first aid and rescue T3 Policies and procedures for live High Voltage stick method up to and including 132 kV encompassing: Policies, procedures and practices Definition of terms Responsibilities of personnel Types of structures Types of equipment and compliance T4 Stick techniques up to and including 132 kV encompassing: High Voltage insulators High Voltage crossarms High Voltage bridge connections Installation and maintenance of equipment Temporary Midspan switching devices Erection and replacement of poles Replacement of conductors and cables High voltage armour rods and line guards Conversion intermediate to strain construction Switching devices T5 Safety precautions for plant, equipment and tools encompassing: Safe working clearances Identification of OH&S hazards Assessing and controlling risks and hazards Personal protective equipment T6 Identification and serviceability of plant, equipment and tools encompassing: Identification of plant, equipment and tools Serviceability of plant equipment and tools T7 Operational use of plant, equipment and tools encompassing: Conductor supports Selecting conductor support method Calculation of loads Effects of secondary loading Effects of resultant forces Conductor support rigging procedures T8 Electrical and electrostatic principles encompassing: Relationship with current, voltage and resistance as related to distribution lines Phase voltage and respective line voltages Production of an electric field T9 High voltage insulation encompassing: Construction of insulators Checking integrity of insulation prior to work commencement Effects of electrical fields on insulators Number of disc insulators needed Performance of a failed insulator on the line and system Minimum number of discs per string Detecting a failed insulators T10 Effects of electrostatic Induction on the human body encompassing: Electrostatic induction and the human body T11 Switching surges and magnetic fields encompassing: Lightning and switching surges Magnetic fields T12 High Voltage switching fundamentals encompassing: Manuals system diagrams/plans and drawings High Voltage live work access authority/permit system Fault current protection devices Disabling auto-reclose function Network interconnectors Test instruments Types of switchgear High Voltage electrical faults Types Causes Effects T13 High voltage SWER system encompassing: Components Circuit arrangement Operation principles Faulty SWER earth system T14 Safety Observer principles encompassing: Duties Techniques Minimum Approach Distances (MAD) Minimum safe working distance from vegetation T15 Teamwork High Voltage Live Work |