Passed a series of strict test: low temperature starting test, low temperature rating test, endurance test, reengagment test, impact test, waterproof, dustproof and armture overspeed tests.

• 经过严格的形式试验:低温起动、低温额定功率、寿命、反拖、冲击、防水、防尘以及电枢超速等试验。