What insulating materials do you need for power tools?
Insulation system of power tools can be divided into basic insulation, additional insulation, reinforced insulation, double insulation. Basic insulation: enameled wire and iron core between the insulating paper (paper for the green paper or DMD insulation paper) is the basic insulation, Withstand voltage is 1250V;
Reinforced insulation: the voltage between the live parts and the accessible housing is 3750V, such as the voltage between the brush and the cover surface; double insulation: basic insulation + additional insulation. Main insulating material: green paper or DMD Insulation paper for basic insulation; shaft insulation and plastic housing for additional insulation; rotor insulation end plate, stator insulation end plate, used to control the creepage distance and electrical clearance; brush grip bakelite powder, used to strengthen the insulation; other parts (Power plugs, commutators, switches, etc.) These are pressure requirements.
Additional insulation: insulation between the rotor core and the mandrel (insulating plastic powder), between the stator core and the plastic housing shell, is the additional insulation withstand voltage of 2500V;