1. Kev tiv thaiv luv luv los ntawm cov tsiaj me lossis cov khoom txawv teb chaws txuas rau qhov khoob;
2. Tiv thaiv hluav taws xob xwm txheej tshwm sim los ntawm condensation flashover, av flashover, icicles, los yog snow tsub zuj zuj;
3. Tiv thaiv corrosion ntawm transformer input thiab output kab los ntawm cov kua qaub nag, ntsev tsuag, thiab teeb meem tshuaj gases;
4. Tiv thaiv kev raug mob ntawm tus kheej los ntawm cov neeg taug kev yuam kev kov cov hluav taws xob tiv thaiv;
5. Kev ua haujlwm puv nkaus ntawm lub npog tiv thaiv thiab ntsuas ntsuas tiv thaiv hluav taws xob tub sab nyiag;
6. Lub snap- haum qauv yog yooj yim rau nruab thiab rov siv tau.
