葉輪材料為鍍鋅板;電機為外轉子直流電機。
impeller material: galvanized sheet steel ;Motor: external rotor DC motor.
7.2風機在出廠檢測時必須通過動平衡、振動和跳動測試:風機運轉在1400±50r/min時,兩邊端麵動平衡精度為G6.3,符合標準JB/T9101;風機的振動速度有效值按照JB/T8689標準規定;風機運行時,葉輪的軸向跳動和徑向跳動小於等於1.0 mm。
At 1400±50r/min running speed, the residual unbalance of the fannot less than
G6.3(balancing precision grade) in each plane, according withJB/T9101,Vibration
speed virtual value of fans, test method accord withJB/T 8689.Runout of impeller
in axial and radial direction≤1.0 mm.
7.3風機防護等級為IP42;風機在額定電壓、環境溫度為40℃、全速運轉時的壽命預算值40000小時。
Type of protection is IP42,determined when at rated voltage, running at full speed,
environment temperature of 40℃,Fan life expectance 40,000 hours.
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