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.

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。

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Featuring robust explosion-proof housings, ex motors are capable of bearing internal explosions with no risks of propagation to the neighboring environment.

具有强大的防爆外壳，防爆电机与邻近环境承载能力，没有风险的内部传播到。

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Shanghai coan ex - proof electrical apparatus techs co. , ltd is a special consulting agency for the certification of ex - proof electrical apparatus at home and abroad.

上海科安防爆电气技术有限公司是一家从事代理国内和国际防爆电气产品认证专业咨询机构。

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The proposals eschew the traditional risk-based U.S. regulatory approach and embrace the European style of precaution, which demands ex post proof of safety even where no current evidence reveals environmental or health harms.

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