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KTC正压防爆仪表、配电盘、柜、箱(IIB、IIC)定做KTC正压防爆仪表、配电盘、柜、箱(IIB、IIC)

KTC Pressurized Explosion-protected Meter and Distribution Panel,Cabinet, Box(IIB、IIC)

适用范围 Application
1、爆炸性气体环境：1区、2区
2、场所中危险气体或蒸气：IIA、IIB、IIC
3、温度组别：T1～T4
4、环境温度：-20℃～+40℃
5、户内、户外

1、Explosive gas atmospheres:Zone 1＆2
2、Dangerous gases or vapors zone: IIA、IIB、IIC
3、Temperature classes:T1～T4
4、Environment temperature:-20℃～+40℃
5、Indoor and outdoor

KTC正压防爆仪表、配电盘、柜、箱(IIB、IIC)定做型号含义 Type designation

KTC正压防爆仪表、配电盘、柜、箱(IIB、IIC)定做主要技术参数
1、防爆标志：Expdem II BT4 Expdem II CT6 2、防护等级IP54(可达IP56)
3、副（柜箱）内供电220VAC±10% , 50-60HZ, 10A
4、输入气源：0.4-0.8MPa,净化空气或氮气等保护气体
5、进气口为：G1/2 6、换气量为：10-20m3/h
7、换气时间：10-30min(由防爆检测单位确定，tp=5×V/Q, tp：换气时间，V:主腔内净容量，Q:保护气体的流量）
8、耗气量为：2-8m3/h (根据盘、柜的容积和面板操作元件的多少及其密封程度而定）
9、功能指标：
a)仪表、电器供电前，对盘、柜内剩余空气按启动按钮自动换气。换气结束自动维持正压值250Pa±100Pa,此时可向盘、柜内仪表、电器供电
b)盘、柜内工作正压值为250Pa±100Pa
c)内部正压值＜150Pa时，自动补气
d)内部正压值＜80Pa时，自动声光报警
e)内部正压值＜50Pa时，自动切断电源（2区危险场所使用时，需此功能请注明）
Specification
1.Ex-marking:Expdem II BT4 Expdem II CT6 2.Degree of protection:IP54(to IP56)
3.Power supply in auxiliary panel (cabinet or box):220V±10%, 50-60HZ 10A
4. Input air source:0.4-0.8MPa,etc.protective gas such as purged air or nitrogen
5.Air input size:G1/2 6.Air purging capacity:10-20m3/h
7.Air purging time:10-30 min(determined by test station,Tp=5×V/Q, Tp:air purging time V:net volume of main compartment Q:capacity of protective gas)
8.Consumed gas:2-8m3/h(determined by volume of panel or cabinet,number of operating parts, and sealing condition)
9.Function indexes:
a)Before meter or apparatus are energized,operate the push button to purge,at the end of air puring,maintain overpressure of 250±100Pa,then automatically supply power to meter or apparatas in panel or cabinet.
b)Overpressure value in the board (Cabinet)250± 100Pa
c)Overpressure value in the board(Cabinet)＜150Pa,automatically supply air
d)Overpressure value in the board(Cabinet)＜80Pa,automatic alarming with sound and light
e)Overpressure value in the board (Cabinet)＜50Pa,automatically disconnect power (Please refer when it used for zone 2)

表1(Table 1)