Professional Answer: The main difference between a transmission and a distribution lineman is the part of the electrical grid they work on. transmission linemen work on the high-voltage lines that carry bulk electricity over long distances, often supported by tall steel towers. In contrast, distribution linemen work on the lower-voltage lines that branch off from substations to deliver power to local communities, typically using wooden or concrete poles. At Ningbo Changshi, we provide a full range of equipment for both roles, including robust tension stringing equipment for overhead transmission lines and precision tools for distribution line installation and repair.