2. Cross screwdriver: The main models are 5X75, 6X 100 and 6X 150, which are used for screwing screws, disassembling openings and sockets;
3. Wire cutters: The main models are 6-inch, 8-inch and 10-inch (not commonly used), which are used in places where strong clamping is required, such as unscrewing screws, twisting wires and pulling wires;
4. Needle-nosed pliers: The main models are 5-inch, 6-inch and 8-inch, which are used to clamp small parts and screw in narrow spaces.
5. Electric pen: The main models are 5X75 and 6X 100, which are used to test whether the wires are charged or not, and to disassemble screws with low torque (not tightened).
Extended data:
Electricians are divided into five levels. Skills are identified as: primary skills (level 5 qualification), intermediate skills (level 4 qualification), advanced skills (level 3 qualification), technicians (level 2 qualification) and senior technicians (1 level qualification). Professional qualification belongs to technical level, not professional title, but the treatment recognized by the state (salary, housing, registered permanent residence, etc.). ) They are the same. The third-level qualification (advanced skill) is equivalent to assistant engineer, the second-level qualification (technician) is equivalent to engineer, and the 1 level qualification (senior technician) is equivalent to senior engineer.
Professional titles are divided into: technician (junior title), assistant engineer (junior title), engineer (intermediate title), senior engineer (deputy senior title), professor engineer (senior title) and researcher engineer. (Senior title of professor-level engineer)
Baidu encyclopedia-electrician