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防爆（bào）术语：
有（yǒu）关防爆术（shù）语及标（biāo）准
安全栅（shān）安全参数定义：
安全栅（shān）安全参数定义：
安（ān）全栅zui高允许电压：Um
保证安（ān）全栅本安端的本安性能，允许非（fēi）本安端可能输入的zui高（gāo）电压
安全栅zui高开路电压：Uoc
在zui高允许电压范围内本安端开路（lù）时电（diàn）压zui大值
安全栅zui大短路电流：Isc
在zui高（gāo）允许电（diàn）压范围内本安端短路时（shí）的电（diàn）流zui大值
安全栅允许分布（bù）电容：Ca
保（bǎo）证本质安全性能情况下本安端zui大允许外（wài）接电容
安全栅允许分布电感：La
保证本质安全性能情况下（xià）本安端zui大允许外接电感
防（fáng）爆标志格式说明：
将工厂或矿区的爆炸危（wēi）险介质（zhì），按（àn）其引燃能量，zui小点（diǎn）燃温度以及现场爆炸性（xìng）危险气体存在的时间周期进行科学分类分级，以（yǐ）确（què）定现场防爆设（shè）备的防爆标（biāo）志和防爆形式。
防爆标志格式：
Ex （ia） ⅡC T4
防爆标记防爆等级气体组别温度（dù）组别
Explosion-proof terms:
Relevant explosion-proof terms and standards
Definition of safety parameters of safety barrier:
Highest allowable voltage of safety barrier: Um
Ensure the intrinsic safety performance of the intrinsically safe end of the safety barrier, and allow the highest voltage that may be input to the non-intrinsically safe end
Safety barrier high open circuit voltage: Uoc
The maximum value of the voltage when the intrinsically safe terminal is opened in the high allowable voltage range
Large short-circuit current of safety barrier: Isc
The maximum value of the current when the intrinsic safety terminal is short-circuited within the maximum allowable voltage range
Safety barrier allows distributed capacitance: Ca
Under intrinsically safe performance, the intrinsically safe terminal allows a large external capacitor
Safety barrier allows distributed inductance: La
The intrinsically safe end allows a large external inductance to ensure intrinsic safety performance
Description of explosion-proof mark format:
According to the ignition energy, the minimum ignition temperature and the time period of the presence of explosive hazardous gases in the factory or mine area, the explosion hazardous medium shall be scientifically classified to determine the explosion-proof mark and explosion-proof form of the explosion-proof equipment on site.
Explosion-proof mark format:
Ex (ia) ⅡC T4
Explosion-proof mark Explosion-proof grade Gas group Temperature group
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