ctor Switches To Accommodate several substation layouts and voltage level needs, HV disconnector switches are available in numerous layout configurations. 1.3.one Heart-Split Disconnector This frequent variety characteristics two relocating arms that pivot open from the middle, developing a horizontal split. They're strong, give great visibility on the air gap, https://www.friend007.com/post/560325_their-construction-is-rugged-designed-for-either-pole-mounting-pad-mounting-in-a.html