I-insulathori zokuphakama kwezibhalo zokuthumela amandla emkhathi omkhulu we-Hebei Heiniu zizinkimba ezingcono ezibalulekileyo ezisakhiwe ukuvikela ubukhulu bezibhalo zokuthumela amandla emkhathi omkhulu phandle kokwesibonelo ngamazinyo. Lezi zizinkimba zihlanganisa ukusebenza kwe-insulation yokuphakama nokubaluleka kwezinhlobo zemkhathi, nezifunda ezinamaphuzu okugcina amandla okuphakama nokubaluleka kwezicebile, izicebile, nezinhlobo zemkhathi. Ziyachazwa ngokuphelele kwezindawo zokwenza izinto zemetal nezindawo zokwenza izinto zezinhlobo zemakhemikhali, ziyabona izi-shed nezihousing ezisakhiwe kwezinhlobo zemakhemikhali eziningi ukuthi zibe nesiphumo esihle sokungafani nemvula nokubaluleka kokufa kwamandla ngokuphakama kwezinhlobo zemkhathi. Isikhundla sakithi sokuzivikela sivumisa ukusebenza kwelektriki nokubaluleka kwezinhlobo zemkhathi yonke yale insulator yokuphakama kwezinhlobo zemkhathi, ukuvikela ukuthi iyasebenza ngokuphelele kwezinhlobo zemkhathi zokuthumela amandla. Sibonisa lezi zinkimba zingcono njengesiqondiso sezithembiso sakithi sokuthuthukisa ubukhulu nokubaluleka kwezinhlobo zokuthumela amandla emhlabeni wonke.