文件编号:
NDT2920019
文件版本:
4
地址:上海市浦东新区申江南路
2000
号
邮编:
201315
电话:
(021)68586699
传真:
(021)23025796
第
9
页
共
18
页
14) 产品降容系数表 见表 4
15)
高海拔降容系数 见表 5
16) 导体部分接线螺纹孔端子拧紧扭力
矩
见表
17) 报警功能参数 见表 7
1) Altitude≤2000 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 circuit:Ⅲ, Installation
category for the breaker which is not connected to main circuit:Ⅱ。
9) Pollution degree:3.
10) Service place without explosive media, gas and dust which are corrosive and conductive.
11) Be mounted free from rain and snow.
12) Should consult with the manufacturer when the working conditions are harsher.
13)Storage environment table3
14)
Product derating coefficient table table4
15)Derating coefficient in high altitude place table5
16)Terminal torsion value for wiring thread hole in conductor section table6
表 3/ table3
表 4/ table4
塑壳式断路器降容系数表 Molded Case Circuit Breaker Derating Coefficient Table
序号
No.
壳架等级额定电流
Frame size rated
current
温度对应产品降容系数表 Derating coefficient table
1
125
温度
Temperature 40℃
45℃
50℃
55℃
60℃
65℃
70℃
降容系数
Derating
Coefficient
1
0.977
0.954
0.931
0.907
0.883
0.858
2
250
温度
Temperature
40℃
45℃
50℃
55℃
60℃
65℃
70℃
降容系数
Derating
Coefficient
1
0.982
0.963
0.944
0.924
0.904
0.882
3
400
温度
Temperature
40℃
45℃
50℃
55℃
60℃
65℃
70℃
降容系数
1
0.981
0.962
0.942
0.922
0.901
0.879
项目 Item
规 范 Description
周围温度 Ambient temperature
-40℃~+75℃
相对湿度 Relative humidity
(Ambient temperature at 25℃)≤95%