0755-21041124 
防爆術語：
有關（guān）防爆術語及標準
安全柵安全參數定義：
安全柵安全參數定義：
安全柵zui高允許（xǔ）電壓：Um
保證安全柵本（běn）安端的本安性能，允許非本安端可能輸入的zui高電壓（yā）
安全（quán）柵zui高開路電壓：Uoc
在zui高允許電壓範圍（wéi）內本安端開路時電壓（yā）zui大（dà）值
安全柵zui大短路電流：Isc
在zui高允（yǔn）許電壓範圍內本（běn）安端短路時的電流（liú）zui大值
安全柵允許分布電容：Ca
保證本質安全性能情況下本安端（duān）zui大允許外接電容
安全柵允許分布電感：La
保證本質安全性能情況下本安端zui大允（yǔn）許外接電感
防爆標誌（zhì）格式說明（míng）：
將工廠或礦區的爆炸危險介質，按其引燃能量，zui小點燃溫度以及現場爆炸（zhà）性危險氣（qì）體存在的時間周期進行（háng）科學分類分級，以確定現場防爆設備的防爆標誌和防爆形式（shì）。
防爆（bào）標誌格式：
Ex （ia） ⅡC T4
防爆標記防爆等級氣體組（zǔ）別溫度組別
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（zī）詢 
