Explosion-proof signs how to interpret?
There is a user to our factory customized explosion-proof operation box, 304 stainless steel explosion-proof box, explosion-proof industrial socket, explosion-proof mobile cable tray, explosion-proof LED lights and other explosion-proof products, above are explosion-proof signs: ExdIIBT4, ExeIIBT6, ExdeIICT6 and other explosion-proof signs. How to understand these explosion-proof signs?
The purpose of this paper is to analyze the meaning of these explosion-proof signs.
For example: ExdeIIBT4 is the most common explosion-proof mark.
One, the first two English letters "Ex" is the Ex-mark
Second, the following "d" flameproof enclosures, sometimes referred to as "e", represent increased safety enclosures. What appears in this example is that "de" stands for the flameproof and increased safety type, and the line also called the complex.
Third, many people use the word "II" to read. Some people read Arabic numerals: 11. Some people read him separately with Arabic numerals, and some read English letters ii and so on. Actually, this is II in the Roman numeral III IIIIVV (1235), and we read the second Chinese pronunciation. Representing the equipment category, we have customized explosion-proof control boxes, 304 stainless steel explosion-proof boxes, explosion-proof industrial sockets, explosion-proof mobile cable trays, explosion-proof LED lights and other explosion-proof products are Class II equipment for the use in the factory, (I type is for the coal mine use)
Fourth, "B" stands for Class B gas in Class II gas. If you do not understand this point, you can see our separate article “How Electrical Equipment Grades According to Explosive Gasesâ€. If it is written "C", then it is the "C" level in class II.
Fifth, "T4" is the maximum surface temperature level of the device, T1 represents 450 degrees, T2 represents 300 degrees, T3 represents 200 degrees, T4 represents 135, T5 represents 100 degrees, and T6 represents 85 degrees. The unit is Celsius. Then relative to "T4", the maximum surface temperature of the equipment is 135 degrees.
In this analysis, I believe that we have a preliminary understanding of the explosion-proof signs, these are more commonly used, and some signs read "DIP" that anti-dust ignition, "A21" that A-type 21 zone and so on. Not one example.
There is a user to our factory customized explosion-proof operation box, 304 stainless steel explosion-proof box, explosion-proof industrial socket, explosion-proof mobile cable tray, explosion-proof LED lights and other explosion-proof products, above are explosion-proof signs: ExdIIBT4, ExeIIBT6, ExdeIICT6 and other explosion-proof signs. How to understand these explosion-proof signs?
The purpose of this paper is to analyze the meaning of these explosion-proof signs.
For example: ExdeIIBT4 is the most common explosion-proof mark.
One, the first two English letters "Ex" is the Ex-mark
Second, the following "d" flameproof enclosures, sometimes referred to as "e", represent increased safety enclosures. What appears in this example is that "de" stands for the flameproof and increased safety type, and the line also called the complex.
Third, many people use the word "II" to read. Some people read Arabic numerals: 11. Some people read him separately with Arabic numerals, and some read English letters ii and so on. Actually, this is II in the Roman numeral III IIIIVV (1235), and we read the second Chinese pronunciation. Representing the equipment category, we have customized explosion-proof control boxes, 304 stainless steel explosion-proof boxes, explosion-proof industrial sockets, explosion-proof mobile cable trays, explosion-proof LED lights and other explosion-proof products are Class II equipment for the use in the factory, (I type is for the coal mine use)
Fourth, "B" stands for Class B gas in Class II gas. If you do not understand this point, you can see our separate article “How Electrical Equipment Grades According to Explosive Gasesâ€. If it is written "C", then it is the "C" level in class II.
Fifth, "T4" is the maximum surface temperature level of the device, T1 represents 450 degrees, T2 represents 300 degrees, T3 represents 200 degrees, T4 represents 135, T5 represents 100 degrees, and T6 represents 85 degrees. The unit is Celsius. Then relative to "T4", the maximum surface temperature of the equipment is 135 degrees.
In this analysis, I believe that we have a preliminary understanding of the explosion-proof signs, these are more commonly used, and some signs read "DIP" that anti-dust ignition, "A21" that A-type 21 zone and so on. Not one example.
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