Electricians do run low voltage electrical lines and also troubleshoot them and repair the low voltage lines as well.
If you need low voltage electrical lines installed or repaired or troubleshooted you can call any regular electrician and they will be able to work on and fix the problem or install new low voltage lines.
In some cases a handyman can even install most low voltage electrical lines unless it's a more complicated install.
But any regular electrician can work on and install low voltage power equipment and electrical lines.
Most commonly electricians work on 120 volts and 240 volts and higher voltage wires and installs but they do work on lower voltage a well.
Some electricians are more specialized in other areas to work on more complicated electrical installs and so those electricians usually earn a higher salary.
A low voltage electrician is a type of electrical tradesperson who deals with a specific type of electrical systems.
Low voltage electrical systems include cable and digital television, fiber optic networks, security and fire systems, telephone systems, broadband internet and home entertainment systems.
Most wall of cable outlets run 120V or 240V of electricity.
But low voltage wiring doesn't carry the same current as the power outlets, fixtures and switches typically installed in homes.
Low voltage wiring is designed to carry 50 volts of electricity or less.