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防爆術（shù）語：
有關防（fáng）爆（bào）術語及標準
安（ān）全柵安全參數定義：
安（ān）全柵安全參數定義：
安全柵zui高允許電壓：Um
保證安全柵本安端的本安性能（néng），允許非本安端可能輸入的zui高（gāo）電壓
安全柵zui高開路電壓：Uoc
在zui高允許電壓範圍內本安（ān）端開路時電壓zui大（dà）值
安全柵zui大短路電流：Isc
在zui高允許電壓範圍（wéi）內本安端（duān）短路時的電流zui大值
安全柵允（yǔn）許分布電容：Ca
保證本質安全性能情況下本安端zui大允許外接電容
安全柵允許分布電感：La
保證本質（zhì）安（ān）全性能情況（kuàng）下本安端（duān）zui大允許外接電感
防爆標誌格式說明：
將工廠或礦區的爆炸危（wēi）險介（jiè）質，按其引燃（rán）能量，zui小點燃溫度以及現場爆炸性危險氣體存在的（de）時間周期進行科學分類分（fèn）級，以確定現（xiàn）場防爆設（shè）備的防爆標誌和防爆形式。
防爆標誌格式（shì）：
Ex （ia） ⅡC T4
防（fáng）爆標記（jì）防爆等級氣體組別溫度（dù）組別
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
在線谘詢 
