Importance of Bushing Protection in Medium Voltage Power Systems

Components within a medium voltage power system are subjected to harsh electrical and environmental conditions, and the reliability of an insulation system is critical for the continued distribution of electrical energy without interruption. Electrical stress, temperature extremes, moisture, dirt and industrial pollution are all present on components such as transformers, switches, Ring Main Units (RMU’s), and cable terminations. In medium voltage installations, one of the most critical components is the bushing; therefore, it needs to be insulated properly in order to prevent failure or damage from around it. This is where medium voltage cold applied bushing protection boots are extremely valuable.