SFSZ11-240000/220kV sau uku-uku kan- lodin famfo mai canza wutar lantarki ya sami jerin manyan canje-canje dangane da tsarin fasaha da kayan aiki.Yana da ƙananan girman, haske a cikin nauyi, ƙananan asara, ƙananan amo, kuma abin dogara a cikin aiki, rage asarar wutar lantarki da farashin aiki., gagarumin fa'idojin tattalin arziki.Samfuran sun cika ka'idodin ƙasa: GB1094.1-2013 Mai Canja wutar lantarki Sashe na 1: Dokokin Gabaɗaya, GB1094.2-2013 Mai Canja wutar lantarki Sashe na 2: Haɓakar Zazzabi.GB1094.3-2003 Masu Canza Wutar Lantarki Sashe na 3: Matsayin Insulation, Gwajin Insulation da Iskar Waje.GB1094.5-2003 Masu Canza Wutar Lantarki Sashe na 5: Ikon Jurewa Gajerun Kewayawa, GBT 6451-2015 Ma'aunin Fasaha da Bukatu.
1.Small size, haske nauyi, low hasara, low amo.
2.Amintacce a cikin aiki, rage asarar wutar lantarki da farashin aiki.
3.Temperature Rise da Insulation Level suna da kyau