防爆标志为ExdⅡLBT6,防爆电气设备为ⅡB类隔爆型T6;
防爆标志为ExdⅡT3，防爆电气设备为1B类增安型T3组:
防爆标志为Exd日CT4，防爆电气设备采用二种防爆型式，表示采用主体增安型，内装1C隔爆型Ex元件。
防爆标志为ExdⅡBT5，防爆电气(设备采用二种防爆型式，表示采用主体隔爆型，接线腔体为增安型。
防爆标志为ExPIT4，防爆电气设备为且类正压型T4组。
lf the explasian-peuof is Exd $$Té sthe explasion-preof clectrikc cquipment is the explasion isolaticn sayle Té of 1s type.ifthe explosion-proof is Ewd BT3 she explosion-proof chectrik cquipment is the safely ineresee syle T3 of B tpe.lf the explosoe proof is Exd CT4.he explasion,pruof cikctrie equinment adepes two kinds of explosicrrproof sty ksand shants fe thut the main hody isthe sality iurease siyle wih (epiksion isolalion sile Exmponent huil-in.
lf the exploskce-proofis Exd B1$.the caploslon-groof cectrike cquipmen aees: two kinds ofexplosen-peol sy esand stands far thut the malin body isespikoslon isolmtion style and wire connection chamber is the safety increase sty le.
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