Doctor Who practical electricians are members of the art department. They shouldn't be confused with electricians, who are members of the camera and electrical department.
“Albert James was a practical electrician on Doctor Who and Torchwood. Though never interviewed...Albert James
“Gafin Riley was a practical electrician/electrician for the Doctor Who television stories...Gafin Riley
“Gavin Riley, sometimes credited as Gafin Riley, was a practical electrician for the Doctor Who...Gavin Riley