针对煤矿对现场总线本质安全防爆的要求，采用了改进的统一供电法，设计了电源适配器和通讯适配器。
According to the EX i explosion-proof request on field bus used in coal mine, improved uniform power supply is adopted. Power supply adapter and communication adapter is designed also.
车体外部两侧需安装指示灯(LED防爆型)，每车不得少于6盏(一车一直流电源)。
Car body external indicator light (led explosion-proof type), need installed on both sides of each car shall not be less than 6 light (a car has been flow power supply).
内置开关采用防爆元件，当产品打开时能自动切断电源。
The inside places the switch adoption flameproof a piece, be the product open can cut off the power supply automatically.
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