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. What is Bushing A bushing is an insulated device used to permit the safe passage of an electrically conductive object (conductor) through the grounded/earthed portion of an apparatus (such as a transformer, switchgear panel, circuit breaker, or electric control cabinet). It provides electr...