电气设备防爆英文

❶ 防爆电气设备的防爆标志是什么字母

你可以看一下防爆电气国家标准GB3836.1-2010，上面对防爆标志有详细的规定。

❷ 什么是防爆电气设备

简单的理解就是在易燃易爆的场所使用的经特殊处理的用电器具及设备为防爆电气设备

❸ 防爆电气设备英文怎么写

防爆电气设备
[电工]electrical apparatus for explosive atmospheres
例句：
若无法避免，则应根据需要选用适当版的防爆电气设备。权
If installation can not be avoided, proper explosion-proof electrical equipment shall be selected according to needs.

❹ 防爆标志字母含义是什么

防爆标志的完整字母为：ExdiambIIBT4。

其中：“Ex”表示防爆，“ d”表示防爆型，“ ia”表示本质安全相关的设备，“ mb”表示灌封型，“ IIB”表示出厂类型的以乙烯为气体的气体防爆型代表气体，“ T4”表示防爆电气的最高表面温度不超过T4，即表面温度不超过135°C。

爆炸性气体混合物的着火温度是可以点燃爆炸性气体的温度极限，根据电气设备的最高表面温度将其分为T1至T6组，因此T1至T6组中相应电气设备的最高表面温度不能超过相应温度组的允许值，温度组，设备表面温度和易燃气体或蒸气着火温度之间的关系。

相关内容解释：

爆炸性气体混合物的爆炸传递能力指示爆炸危险等级。爆炸性混合物的爆炸传播能力越大，其危险就越大。炸药混合物的炸药传输能力可以通过最大测试安全距离来表示。

易燃易爆气体，液体蒸气和雾气易于点燃，也表明存在爆炸危险，用最小点火电流比表示。根据适用于爆炸性气体混合物的最大测试安全距离或最小点火电流比，II类防爆电气设备或本安电气设备进一步分为IIA，IIB和IIC。

❺ 防爆电气设备型式和标志，是哪个单词的简写

隔爆抄d: divide；增安e: extend；本安i: intrinsic；正压p: pressure；油浸o: oil；充砂q: Powder filling"q"；浇封m: Encapsulation "m"

❻ 防爆电气设备总标志如何表示，类型有哪些

防爆电气设备总标志“Ex”表示防爆，至于具体的防爆型式的防爆标志：内

隔爆型容Ex d，充砂型Ex q，增安型Ex e，浇封型Ex m，正压型 Ex p ，n型Ex n，本安型Ex ia，粉尘防爆型DIP A，本安型Ex ib，粉尘防爆型DIP B，油浸型Ex o，特殊性Ex s
来自南阳中天防爆

❼ 防爆电气设备的防爆标志是什么

防爆电气设备的防爆标志就是指防爆电气设备的防爆形式。防爆标志有：隔爆型“d”、增安型“e”、本质安全型“i”、油浸型“o”、充砂型“q”、浇封型"m"、n 型、特殊型"s"、粉尘防爆型等。

❽ 求一位大侠帮忙把论文翻译成英文~100分 谢谢 燃气锅炉房的电气防爆设计 摘 要：通过分析燃气锅炉房事故原

2 accident reason analysis

Analysis of gas boiler room the cause of the accident, there are two possible: boiler ontology explosion, boiler room to explode gas explosion concentration and explosions.

Boiler blast furnace body, because be in, or flue gas mixture in explosive existence, when achieved by fire or explosion limit, boiler heat ignites causing accidents in itself. This point and the national norm of building fire system that conform to the relevant provisions. The actual current boiler proct has considered safe proction measures to avoid it. Qualified gas boiler itself has the explosion-proof process design, such as burner in abnormal situation automatic stop, self-control device also stop output fuel, Gas boiler combustion system higher automatization, including the gas pressure is high, low limit alarm protection, when the control logic where step does not meet the conditions set start corresponding interlock protection.

Avoid the boiler exploded possibility, but still ontology exist above another possibility, can avoid? How to avoid it?

Three measures

In fact in design, according to the boiler design code "and" automatic fire alarm system design code "GB50116-1998 etc standard, we have taken the following measures:

Natural gas pipelines valves, meter, may occur gas leak place, boiler room may proce gas storage proct area [relative density 0.8, it is to be in commonly roof area in these areas], all equipped with combustible gas concentration measurement alarm device, according to combustible gas concentration situation give out sound and light alarm signal and start exhaust fan, when leakage accident concentrations reach explosion limit of the lower limit 50% [this value for reference only], but also immediately close natural air intake ct total intake solenoid valves.

In the boiler room and a natural gas pipeline in and out of the room, the incident, but also with the smoke exhaust fan combustible gas alarm interlocking (start).

Electrical, instrument by cable selection TongXin, not less than 1.5 mm2 minimum section.

Gas radiation tube tube top or the nearby, the lightning rod should be installed above the pipe jacking tip should be not less than 3m, and its scope of protection tube top above not less than 1-m.

Gas pipeline should be static grounding device that, when pipeline as metal materials, and lightning protection or electrical engineering protective grounding wire connected, the measured resistance R more than 4 Ω. In pipe joints, such as the bend, flange, valve and pipe with good place cannot metal contact, also with metal soft line will be both ends jumper.

In the boiler room and a natural gas pipeline in and out of the room door, window take pressure measures.

According to the explosion and fire dangerous environment electrical device design specification "the laws 2.2.2 bar, accord with one of the following conditions may, when the explosion danger area: devin in item 3, in the process of proction use fire equipment near, A combination of these several measures can clearly, electrical equipment selection for the explosion.

At the same time according to the explosion and fire dangerous environment electrical device design specification "the laws 2.2.2 bar, accord with one of the following conditions may, when the explosion danger area devin: the first 2 items, and the highest possible flammable explosive chroma does not exceed 10% of the lower limit, Close air intake ct natural total intake solenoid valves, concentration exceed 10% of the lower limit explosion limit, boiler room near the roof area are gas storage proct area, so lighting lamps and lanterns and switch choosing is explosion-proof type.

4 conclusion

In gas boiler room electrical design, lighting choose explosion-proof lamps, other part adopts the explosion-proof type.

references

[1] boiler design standard. GB50041-1992.

[2] explosion and fire dangerous environment electrical device design standard. GB50058-1992.

[3] the code for fire protection design of buildings. GB50016-2006.

[4] automatic fire alarm system design standard. GB50116-1998.

❾ 电气设备防爆的类型及标志有哪些

防爆电气设备总标志“Ex”表示防爆，至于具体的防爆型式的防爆标志：

隔爆型回Ex d，充砂型Ex q，增安型Ex e，浇封型答Ex m，正压型 Ex p ，n型Ex n，本安型Ex ia，粉尘防爆型DIP A，本安型Ex ib，粉尘防爆型DIP B，油浸型Ex o，特殊性Ex s

❿ 电气防爆的EXD和EXP是什么意思，各有什么区别

EX d是指隔爆型防爆型式，是把设备可能点燃爆炸性气体混合物的部件全部封闭在一个回外壳内答，其外壳 能够承受通过外壳任何接合面或结构间隙，渗透到外壳内部的可燃性混合物在内部爆炸而不 损坏，并且不会引起外部由一种、多种气体或蒸气形成的爆炸性环境的点燃(参见GB 3836-2标准)

EX p 是指正压型防爆，它是一种通过保持设备外壳内部保护气体的压力高于周围爆炸性 环境压力的措施来达到安全的电气设备(参见GB 3836-5标准)。

电气防爆的基本型式有：

防爆型式 防爆型式标志

1. 隔爆型 Ex d

2. 增安型 Ex e

3. 正压型 Ex p

4. 本安型 Ex ia

5. 本安型 Ex ib

6. 本安型 Ex ic

7. 油浸型 Ex o

8. 充砂型 Ex q

9. 浇封型 Ex m

10. n型 Ex n

11. 粉尘防爆型 DIP A

12. 粉尘防爆型 DIP B

13. 特殊性 Ex s