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0513-83630898
KTC正壓防爆儀表、配電盤、柜、箱(IIB、IIC)
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| 型號含義 Type designation | |||||||||||||||||||||||||||||||
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| 主要技術參數(shù) | |||||||||||||||||||||||||||||||
| 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(jù)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(qū)危險場所使用時，需此功能請注明） |
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| 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) |
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| 表1(Table 1) | |||||||||||||||||||||||||||||||
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| 外形尺寸及示意圖 Outline dimensions | |||||||||||||||||||||||||||||||
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