"Electrical systems" refer to a network of wires, circuits, and devices that transmit and control electricity in various settings like homes, buildings, or vehicles. Full definition
Usually installation and maintenance work of electrical systems of an organization is done by them. (sampleresumetemplate.org)
My field service has included planning and installation of electrical systems in new homes and troubleshooting and repair of existing installations. (resumegenius.com)
Presumably a 48 - volt electrical system with mild hybrid - style batteries would be useful for this kind of thing. (carthrottle.com)