Hesheng Cable Trunking HT3 ndi mtundu wa thireyi yopulumutsa mphamvu.Poyerekeza ndi machitidwe ochiritsira chingwe, mawonekedwe osagwirizana a makina opangidwa ndi chingwe amatha kupulumutsa zipangizo zonse ndi mphamvu yamagetsi, ndipo akhoza kupulumutsa pafupifupi 30% mpaka 40% ya zipangizo.