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9. Insulation Co-ordination - Pg. 249

Chapter 9 Insulation Co-ordination 9.1 INTRODUCTION Insulation co-ordination is the technique used to ensure that the electrical strengths of the various items of plant making up the transmission and distri- bution system and their associated protective devices are correlated to match the system characteristics and expected range of voltages. The objective of the analysis and application of its conclusions is to reduce the probability of plant failure and supply interruptions caused by insulation breakdown to an