The power supply of the Crane factory is three-phase communication (three-phase four-wire system), the frequency is 50Hz/60Hz, and the voltage is ≤1000V (3kV, 6kV or 10kV as required). The voltage fluctuation of the power supply system at the crane feeder connection point should not exceed ±10% of the additional voltage.
The trajectory device of the crane operation should meet the GB/T class tolerance requirements.
The grounding resistance value of the crane's running track should not be greater than 4Ω.
The altitude of the crane device operating address does not exceed 1000m (when it exceeds 1000m, it should be in accordance with GB.
The rule is to check the capacity of the motor, and the capacity of the electric equipment should be checked when it exceeds 2000m).
The radiant heat temperature of the crane hook part of the lifting goods does not exceed 300℃.
Climatic conditions when the crane is working indoors:
The ambient temperature does not exceed +40℃, and the average temperature within 24h does not exceed +35℃;Environmental temperature is not lower than -5℃; relative humidity does not exceed 50% at a temperature of +40℃.
Climatic conditions when the crane is operating outdoors:
The ambient temperature does not exceed +40℃, the average temperature within 24h does not exceed +35℃, and the ambient temperature is not lower than -20℃.
The operating wind pressure should not be greater than: 150Pa inland (equivalent to level 5 wind), 250Pa in the coastal area (equivalent to level 6 wind); wind pressure for non-operating conditions: generally 800Pa (equivalent to level 10 wind), also Can be arranged separately
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