IT系統(tong)(tong)因(yin)降(jiang)(jiang)低了觸電(dian)(dian)(dian)電(dian)(dian)(dian)壓和(he)電(dian)(dian)(dian)網(wang)對(dui)地漏電(dian)(dian)(dian)流（有效(xiao)控制對(dui)心臟的(de)(de)(de)直接漏電(dian)(dian)(dian)），故(gu)人身觸電(dian)(dian)(dian)危(wei)險被降(jiang)(jiang)到小程度(du)（避免微(wei)事故(gu)）。IT系統(tong)(tong)內部一旦出(chu)現個對(dui)地漏電(dian)(dian)(dian)故(gu)障(zhang)(zhang)，不(bu)會(hui)導致系統(tong)(tong)斷路(lu)器或熔(rong)斷器動作，因(yin)而保證(zheng)了電(dian)(dian)(dian)源供電(dian)(dian)(dian)的(de)(de)(de)可靠性(xing)（負載出(chu)現漏電(dian)(dian)(dian)的(de)(de)(de)情況下不(bu)斷電(dian)(dian)(dian)）。有效(xiao)保障(zhang)(zhang)醫(yi)用設(she)備(bei)的(de)(de)(de)正常運行。防止其他供電(dian)(dian)(dian)回(hui)路(lu)中的(de)(de)(de)漏電(dian)(dian)(dian)流通過(guo)接地線竄(cuan)入手術室、ICU、CCU等特(te)殊場所的(de)(de)(de)醫(yi)用設(she)備(bei)上對(dui)患者的(de)(de)(de)安全構成威脅(xie)。醫(yi)用隔離電(dian)(dian)(dian)源減少(shao)了各(ge)種(zhong)醫(yi)用設(she)備(bei)可能出(chu)現的(de)(de)(de)對(dui)地故(gu)障(zhang)(zhang)。 由上面的(de)(de)(de)分析可知(zhi)，一個典型的(de)(de)(de)單相 IT系統(tong)(tong)，其組成設(she)備(bei)主要包(bao)括：隔離變壓器、絕緣監測器、電(dian)(dian)(dian)流互感器，以(yi)及外接報(bao)警與顯(xian)示儀(yi)。

醫用(yong)(yong)(yong)IT隔離(li)電(dian)源用(yong)(yong)(yong)在醫院的(de)二類(lei)場所:各類(lei)手術(shu)室、喚醒室、監(jian)護室、心臟監(jian)護室等均屬于2類(lei)場所。在此類(lei)場合(he)醫用(yong)(yong)(yong)設備(bei)電(dian)源中(zhong)斷會引起患(huan)者生命危險；微(wei)弱的(de)漏電(dian)流會產生”微(wei)電(dian)流“。在這(zhe)類(lei)場合(he)使用(yong)(yong)(yong)的(de)醫用(yong)(yong)(yong)電(dian)氣設備(bei)包(bao)括(kuo)：在患(huan)者體(ti)表或體(ti)內使用(yong)(yong)(yong)的(de)實時監(jian)控儀(yi)器；用(yong)(yong)(yong)于手術(shu)的(de)儀(yi)器設備(bei)；維持患(huan)者生命和軀體(ti)功能的(de)設備(bei)；用(yong)(yong)(yong)于打(da)開(kai)心臟、大腦的(de)設備(bei)。

IT系(xi)統(tong)作(zuo)用(yong)：降低出點(dian)電(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)網(wang)對(dui)地(di)漏電(dian)(dian)(dian)流（有(you)效控(kong)制(zhi)對(dui)心臟的(de)(de)直接(jie)漏電(dian)(dian)(dian)），故人身觸(chu)電(dian)(dian)(dian)危險被降到低程度(du)。可以(yi)防止(zhi)接(jie)地(di)系(xi)統(tong)內漏電(dian)(dian)(dian)流竄(cuan)入某些(xie)與患(huan)者(zhe)連接(jie)的(de)(de)醫(yi)(yi)用(yong)電(dian)(dian)(dian)器(qi)(qi)(qi)設備(bei)的(de)(de)對(dui)地(di)回(hui)路，從而避(bi)免漏電(dian)(dian)(dian)對(dui)患(huan)者(zhe)安全(quan)所構成的(de)(de)威脅。該系(xi)統(tong)還可以(yi)避(bi)免漏電(dian)(dian)(dian)導致系(xi)統(tong)短路器(qi)(qi)(qi)或熔斷(duan)器(qi)(qi)(qi)動作(zuo)，保(bao)(bao)證用(yong)電(dian)(dian)(dian)的(de)(de)持(chi)續(xu)性和可靠性。在一些(xie)重要的(de)(de)場所，由于隔(ge)(ge)離(li)變壓(ya)器(qi)(qi)(qi)持(chi)續(xu)不(bu)斷(duan)地(di)工(gong)作(zuo)，可能溫度(du)過高而導致隔(ge)(ge)離(li)變壓(ya)器(qi)(qi)(qi)工(gong)作(zuo)異常。因此絕緣監測(ce)(ce)器(qi)(qi)(qi)還需(xu)要實時(shi)檢測(ce)(ce)變壓(ya)器(qi)(qi)(qi)的(de)(de)溫度(du)，電(dian)(dian)(dian)力it系(xi)統(tong)，當(dang)其溫度(du)過高時(shi)，應(ying)有(you)相應(ying)的(de)(de)超溫報警信號，以(yi)提醒(xing)相關人員及(ji)時(shi)處理。 醫(yi)(yi)用(yong)IT系(xi)統(tong)（俗稱醫(yi)(yi)用(yong)隔(ge)(ge)離(li)電(dian)(dian)(dian)源系(xi)統(tong)），又叫中性點(dian)不(bu)接(jie)地(di)配電(dian)(dian)(dian)系(xi)統(tong)。在IT系(xi)統(tong)中，系(xi)統(tong)中性點(dian)對(dui)地(di)完全(quan)隔(ge)(ge)離(li)，系(xi)統(tong)負(fu)載中的(de)(de)外殼經接(jie)地(di)保(bao)(bao)護線接(jie)地(di)。