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nader NDM2 Series - 4. Normal Working Conditions

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文件编号:NDT2920016
文件版本:4
地址:上海市浦东新区申江南路 2000 邮编:201315 电话:(021)68586699 传真:(021)23025796
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4. 正常工作环境/ Stand working conditions
1)海拔≤2000 m
2)环境温度-35+70
3)环境温度+40℃时相对湿度不超过 50%,较低温度可以有较高湿度,如:20℃时相对湿度可达 90%
4)对于因温度变化所产生的凝霜应采取相应的措施
5)能耐受潮湿空气的影响
6)能耐受盐雾、油雾的影响;
7)能耐受霉菌的影响;
8)断路器接至主回路的安装类别为Ⅲ类,断路器不接至主回路的安装类别为:Ⅱ类;
9)污染等级3 级;
10)防护等级IP20
11)无爆炸危险的介质中,且介质无足以腐蚀金属和破坏绝缘的气体与导电尘埃的地方;
12)在没有雨雪侵袭的地方
13)当用户使用条件较上述严酷时应与制造商协商;
14)储存环境 见表 3
15)产品降容系数 见表 4
16)高海拔降容系 见表 5
17)导体部分接线端子/装螺钉拧紧扭力 见表 6
1) Altitude2000 m
2)Ambient temperature-35+70℃;
3)The relative humidity of the air does not exceed 50% at 40. Higher relative humidity is permitted at
lower temperature, such as 90% relative humidity at 20℃;
4)The protective actions should be taken for frost which formed by variation of temperature
5)Resisting the effects by humid air
6)Resisting effects by salt mist and oil mist
7)Resisting the effects by mould
8)Installation category for the breaker which is connected to main circuitⅢ, Installation category for the
breaker which is not connected to main circuit:Ⅱ;
9)Pollution degree:3
10)Protection degreeIP20
11)Service place without explosive media, gas and dust which are corrosive and conductive
12)Be mounted free from rain and snow
13)Should consult with the manufacturer when the working conditions are harsher
14)Storage environment table3
15)Product derating coefficient table table4
16)Derating coefficient in high altitude place table5
17)Terminal torsion value for wiring thread hole in conductor section table6