Question: Can you please explain the method of double insulation ??
Answer:
For double insulation, please refer to the attached photo,
The armature with white bakelite on shaft is an example of Double insulation,
And the wound armature is with sigle insulation in slot line,
Double insulation is necessary when your motor case material is aluminum for leakage protection,
When your motor case material is plastic, double insulation is not necessary,
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Emily