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 installing and maintaining low voltage services overhead All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies KSTISA Low voltage electrical overhead service installation KS01-TIS56A Low voltage electrical overhead service installation Evidence shall show an understanding of the installation of low voltage electrical services to an extent indicated by the following aspects T Standards codes legislation supply authority regulations and or enterprise requirements T Requirements for the use of enterprise construction manuals system diagramsplans and drawings encompassing Types of low voltage overhead services Methods of construction and installation Minimum clearances for overhead services to assets and structures Ground clearances for overhead services Maximum span lengths and tensions for overhead services Customer poles T Installation equipmenttools Equipment and tools for overhead service installation Fittings and hardware for overhead service installation T Characteristics and applications of different types of cables encompassing Cable crosssectional area of conductors Current rating and fuse types and ratings T Stringing and terminating methods encompassing Energised and deenergised cables Connections to point of attachment fuse boxes and pole top boxes Termination at customer pole T Connection of overhead services Types of overhead service connections Live low voltage work principles T Techniques for maintenance of overhead service installations encompassing Diagnosis and repair of faults Removing repairing and replacing of damaged overhead services Removing and replacing pole type fuses T Testing and commissioning procedures encompassing Inspection Equipment functionality tests Continuity tests Polarity voltage and phase sequence tests Neutral and phase identification tests Neutral integrity tests Meter function test Testing check forms T Connection principles Purpose and function of MEN system Types of connection faults Causes and effects of incorrect and poor electrical connections Principles of loop impedance Reasons for and methods used to maintain standard phase sequencing Purpose and operation of service fusing Use of independent earth for testing |