Whether the lower lead of the transmission line is broken, whether the pull rod is damaged, whether the cable maintenance platform and other ancillary equipment are entangled with foreign objects, whether the lightning arrester is damaged, the pointer range and action times of the lightning arrester counting table, Whether the main body is damaged, whether the connecting bronze plate and the connecting wire fall off or break, whether the surface of the cable terminal sleeve is dirty and discharged, whether the flange at the lead sealing place is oil leaking, whether the galvanized copper plate is corroded and oxidized, whether the zinc oxide arrester is intact, whether the surface of the upper cable is damaged, whether the cable clamp is firm, whether the cable protection tube is broken, and whether the foundation of the cable platform is damaged. Lack of soil, tower materials, and whether some terminals grounded by grounding cables are stolen, whether cable terminal information boards, phase color boards, and "No climbing in case of electrical danger" signs are correct and firm, whether the handwriting is legible, whether there are trees under and around the terminal tower that may infringe on the charged distance, weeds and artificial piles that may cause fire in dry weather, and floating objects that may be blown to the terminal tower in windy weather.