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class="inside_rnewcon"><p>CT4防爆電機是對防爆電機防護類型等級的一個稱呼，防爆電機型號一般是指四X3防爆電機、BK2防爆電機、TBPE防爆永磁同步電機等類似的型號。那么我們常說的cT4防爆電機和BT4防爆電機有什么區(qū)別呢？接下來就為大家講解：</p><p>CT4防爆電機的防爆等級是Exd江ICT4,使用場所一般用于工廠，溫度可以在135℃左右的高溫中運行，屬于耐高溫防爆電機、注：CT4防爆</p><p>電機的C就是廠用的意思，T4就是防爆電機可以承受高溫的溫度組別，下面我們會有講解。BT4防爆電機的防爆等級為Exd江IBT4,防護等級低于cT4防爆電機，所以使用Ic可適用于IⅡA、IB的使用條件。</p><p>防爆電機可以分為類和1類兩種類型，類適用于煤礦井下運作電機設(shè)備的，工類是用于工廠防爆電機設(shè)備，類防爆電氣設(shè)備是專門使</p><p>用在煤礦井下作業(yè)，而煤礦井下的氣體甲烷，所以類電氣設(shè)備不再分級。I類防爆電機設(shè)備，按其適用于氣體混合物大安全間隙或小點燃電流比分為A、B、C三級（即IIA、IIB、IIC)。</p><p>CT4防爆電機和BT4防爆電機表面溫度等級從低到高的順序是：T1(450℃)、T2(300℃)、T3(200℃)、T4(135℃)、T5(100℃)、</p><p>T6(85℃)</p><p>由此可以看出，CT4防爆電機的等級比BT4的等級高，CT可用的范圍是廣的，CT是乙快、氫氣級別的防爆等級，若環(huán)境里有乙快、氫氣這些氣體，要用級別的防爆電機。而BT不能用于乙炔氣體的運作場所，只是中等級別的防爆定義。</p><p style="text-align: center"><img src="https://img66.chem17.com/2/20221013/638012713644301885805.jpg" style="max-width:800px;max-height:300%;"/></p><p style="text-align: center"><img src="https://img66.chem17.com/2/20221013/638012713639926431356.png" 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