LT (Low Tension) Insulators and HT (High Tension) Insulators are types of electrical insulators used in power systems, classified based on the voltage levels they are designed to handle.
LT Insulator (Low Tension Insulator)
LT insulators are used in low voltage applications, typically below 1,000 volts (1 kV). These insulators are commonly found in residential and commercial electrical distribution systems. LT insulators are usually made of porcelain or plastic and are used in components like service connections, poles, and low-voltage overhead lines. They ensure safety by preventing unwanted current leakage and supporting electrical conductors mechanically.
HT Insulator (High Tension Insulator)
HT insulators are designed for high voltage applications, ranging from 11 kV to 765 kV and beyond. They are essential components in transmission and high-voltage distribution systems, where they prevent current leakage and flashovers. HT insulators are usually made from porcelain or polymer materials, with types like pin insulators, suspension insulators, and post insulators depending on the system requirements.
