Raptor covers use a bi-material design to allow for hot-stick installations on pin, horizontal, and deadend type insulator applications. The main cover and extension arms provide a reliable mechanical hold on conductor sizes from no. 6 to 795 kcmil. The extension arm is designed to nest over vibration dampers without any interferences, and interlocks over the raptor cover. This modular design provides the ability to extend coverage beyond a single arm with its integrated locking system. The main cover fits a variety of porcelain and polymer type insulators without disturbing the BIL levels of the insulators. The flexible center cover allows conductors to exit from the insulator at angles up to 30° from any axis: all without having to trim the cover.