nader NDM3EU-225 Operating Instructions Manual page 7

文件编号
Doc.No.
4.2 使用环境 Service environment
（1）不要安装于含有爆炸气体的环境里，否则有引发爆炸的危险。
（2）请勿安装于特别潮湿的地方。
（3）不要安装在外磁场大于地磁场 5 倍的地方，否则断路器不能正常工作。
（4）不要安装在振动大于 5g 的地方。
（5）不要安装在气体介质能腐蚀金属和破坏绝缘的地方。
(1) Do not install the breaker in explosive environment, or hazard of explosion will be resulted.
(2)Do not install the breaker in extremely humid locations.
(3)Do not install the breaker in places where external magnetic field is more than 5 times of the
geomagnetic field, or the breaker cannot work normally.
(4)Do not install the breaker in places with vibration more than 5g.
(5)Do not install the breaker in places with gaseous medium corrosive to metal and aggressive to
insulation.
Table7: Environmental requirements for installation location of breaker
项目
Item
周围空气温度
Ambient air
temperature
相对湿度
Relative humidity
海拔高度
Altitude
污染等级
Pollution degree
5、外形尺寸和安装尺寸 Overall and installation dimensions
NDT2920214
Edition
Relative humidity
表 7：断路器安装场所的环境要求
(在+40℃时)不超过 50%，最湿月平均最低温度不超过+25℃，且该月平均最
大相对湿度不超过 90%,并考虑因温度变化发生在产品表面上的凝露
The relative humidity of the air does not exceed 50% (at +40℃), the lowest
temperature in the most humid month should not exceed +25℃, and the
highest humidity in this month should not exceed 90% while condensation
on breaker surface caused by temperature change should be taken into
第 2 版
版次
Version2
规范
Specifications
-35℃ ～ +70℃-
consideration.
不超过 2000m
Lower than 2000m
3 级
Level 3
7
实施日期
Implementation date
(when ambient temperature
is 25℃)≤95%
2019.12.26
文件控制
20190417