• <u id="g48bb"><em id="g48bb"></em></u>

    <thead id="g48bb"><option id="g48bb"></option></thead>
    <code id="g48bb"><nobr id="g48bb"><sub id="g48bb"></sub></nobr></code>
    <pre id="g48bb"></pre>
  • <center id="g48bb"><small id="g48bb"></small></center>
      <tr id="g48bb"><sup id="g48bb"></sup></tr>
    1. <th id="g48bb"></th>

    2.    
         

      KTC正壓防爆儀表、配電盤、柜、箱(IIB、IIC)

         
      適用范圍
      1、爆炸性氣體環境:1區、2區
      2、場所中危險氣體或蒸氣:IIA、IIB、IIC
      3、溫度組別:T1~T4
      4、環境溫度:-20℃~+40℃
      5、戶內、戶外)

      Applying scope
      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





         
      型號含義 Type designation  
         
      主要技術參數  
      1、防爆標志:Expdem II BT4 Expdem II CT6 2、防護等級IP54(可達IP56)
      3、副(柜箱)內供電220VAC±10% , 50-60HZ, 10A
      4、輸入氣源:0.4-0.8MPa,凈化空氣或氮氣等保護氣體
      5、進氣口為:G1/2 6、換氣量為:10-20m3/h
      7、換氣時間:10-30min(由防爆檢測單位確定,tp=5×V/Q, tp:換氣時間,V:主腔內凈容量,Q:保護氣體的流量)
      8、耗氣量為:2-8m3/h (根據盤、柜的容積和面板操作元件的多少及其密封程度而定)
      9、功能指標:
      a)儀表、電器供電前,對盤、柜內剩余空氣按啟動按鈕自動換氣。換氣結束自動維持正壓值250Pa±100Pa,此時可向盤、柜內儀表、電器供電
      b)盤、柜內工作正壓值為250Pa±100Pa
      c)內部正壓值<150Pa時,自動補氣
      d)內部正壓值<80Pa時,自動聲光報警
      e)內部正壓值<50Pa時,自動切斷電源(2區危險場所使用時,需此功能請注明)

       
         
      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)  
      結構形式
      說明
      221
      后開門Door opened in rear
      222
      前開門Door opened in front
      223
      前、后開門Door opened in front and rear
      121
      左、后開門Door opened in left and rear
      211
      右、后開門Door opened in right and rear
      122
      左、前開門Door opened in left and front
      212
      右、前開門Door opened in right and front
       
         
      外形尺寸及示意圖 Outline dimensions  
      H
      B
      D
      觀察窗尺寸
      1800
      2000
      2200
      (2300)
      600
      800
      (900)
      1000
      1200
      600
      800
      (900)
      1000
      b=B-200
      h:按要求配制
      H
      B
      D
      觀察窗尺寸
      1300
      600
      660
      800
      1000
      1300
      700
      H
      B
      D
      觀察窗尺寸
      1800
      2000
      2200
      (2300)
      600
      800
      (900)
      1000
      1200
      600
      800
      (900)
      1000
      b=B-200
      h:按要求配制
       
         
       
         

    3. <u id="g48bb"><em id="g48bb"></em></u>

      <thead id="g48bb"><option id="g48bb"></option></thead>
      <code id="g48bb"><nobr id="g48bb"><sub id="g48bb"></sub></nobr></code>
      <pre id="g48bb"></pre>
    4. <center id="g48bb"><small id="g48bb"></small></center>
        <tr id="g48bb"><sup id="g48bb"></sup></tr>
      1. <th id="g48bb"></th>

      2. 午夜成午夜成年片在线观看_欧美大尺度又粗又长真做禁片_水蜜桃成视频人在线播放_国产欧美在线一区二区三区