Ma insulators a positi amagwiritsidwa ntchito kwambiri pamagetsi otsika mpaka pamagetsi, pamafunso osiyanasiyana, pali ma insulators am'mizere ndi ma insulators aposachedwa.
Ma insulators am'mizere amaikidwa pamtengo wamagetsi pamizere yolumikizira. Malinga ndi momwe amagwiritsidwira ntchito ndi malo omwe adayikapo pamtengo, ma insulators pamizere amagawika m'mitundu ingapo: Ma Insulators a Tie Top Line, Ma Horizontal and Vertical Line Post Insulators, Under Insulators Under Arm Line ndi Clamp Top Line Post insulators.
Ma insulators a Station Station amapereka zotchinjiriza ndi zomangamanga pazomera zamagetsi, zotumiza ndi kugawa, ndi magetsi ena mpaka 1100kV.
Ma insulators amatha kupangidwa ndi ma porcelain ndi silicone polymer. Zapangidwa kuti zizigulitsa m'misika yosiyanasiyana ndipo zimapangidwa kuti zikhale zoyenerera, kuti athe kukwaniritsa zofunikira zamagetsi ndi makina a IEC, miyezo ya ANSI kapena malingaliro amakasitomala.