Condition Assessment in Transmission Line Asset for Maintenance Management

This paper presents condition assessment in transmission line asset for maintenance scheduling management in Thailand's transmission network. The score and weight techniques are applied to the condition assessment. The component of transmission system such as conductor, conductor accessories, insulator, steel structure, foundation, lightning protection, tower accessories and right of way are evaluated while sub-components of each component and classified. The 10 of 115 kV transmission lines in Thailand are evaluated as example in the assessment program. The results show the health index of component, health index of tower and health index of transmission line in form of percentage. The cost of maintenance is considered to plan effective maintenance scheduling for transmission system.