防爆标志介绍
来源: | 作者:pro1678ad | 发布时间: 1716天前 | 9114 次浏览 | 分享到:
Generally, in the flammable gas environment, explosion-proof products must be used when using electrical products. The outer casing of the explosion-proof product generally has the following signs, the specific meanings are as follows: 
Ex d II B T4 
1 234 5 
1. Explosion-proof signs of China and International Electrotechnical Commission 
2. Explosion-proof type 
3. Electrical equipment other than coal mines and underground mines 
4. Maximum experimental safety clearance or minimum ignition current according to explosive gas environment For ABC Level 3 
, according to the highest surface temperature of the equipment, divided into six groups of T1 to T6, the 
first code: 
Ex - China and International Electrotechnical Commission explosion-proof mark; EEx - indicates the European Community; AD - Italy; MS, AE - France; FLP - UK; UL, FM - USA; E - Germany IEC 
2nd code 
code Explosion-proof type National standard Explosion-proof measures Applicable area