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height="438"></a></p> <p><strong>什么是防爆灯:</strong></p> <p>防爆灯是指用于可燃性气体和¾_‰å°˜å­˜åœ¨çš„危险场所åQŒèƒ½é˜²æ­¢ç¯å†…部可能äñ”生的电弧、火花和高温引燃周围环境里的可燃性气体和¾_‰å°˜åQŒä»Žè€Œè¾¾åˆ°é˜²çˆ†è¦æ±‚的灯具ã€?/p> <p>普通灯å…ähŒ‡çš„是用在非可燃性气体和¾_‰å°˜å­˜åœ¨çš„危险场所的灯å…øP¼Œç›¸æ¯”于防爆灯åQŒå®ƒä»¬æ²¡æœ‰é˜²çˆ†ç­‰¾U§ï¼Œé˜²çˆ†¾cÕdž‹çš„要求ã€?/p> <p><strong>防爆灯与普通灯å…ähœ‰ä»€ä¹ˆåŒºåˆ«ï¼Ÿæˆ‘们先来了解防爆灯具有哪些特性:</strong></p> <p>1.防爆灯具的防爆类别、çñ”别与温度¾l„别见国家标准规定ã€?/p> <p>2.按防爆型式分为隔爆型、增安型、正压型、无火花型和¾_‰å°˜é˜²çˆ†åž‹å…±5¿Uä¸»è¦ç±»åž‹ï¼Œä¹Ÿå¯ä»¥ç”±å…¶ä»–防爆型式和上˜q°å„¿Ué˜²çˆ†åž‹å¼ç»„合åŞ或复合型和特ŒDŠåž‹ã€?/p> <p>3.按防触电保护型式可分为Ⅰ、Ⅱ、Ⅲ¾c…R€‚防触电保护是äؓ防止防爆灯具外壳易触及零件带电,使äh体触甉|ˆ–不同电位的导体触及äñ”生电火花而引燃爆炸性æ؜合物。(防爆灯分¾cÕd…·ä½“内容在˜q™é‡Œž®×ƒ¸è¯¦è¯´äº†ï¼‰</p> <p>4.按外壳的防护½{‰çñ”分类åQšç”¨ç‰¹å¾å­—母“IP”后跟两个数字来表征其外壳防护等¾U§ã€‚第1个数字表½Cºå¯¹äººã€å›ºä½“异物或ž®˜åŸƒçš„防护能力。分ä¸?â€?¾U§ã€‚防爆灯å…äh˜¯ä¸€¿Uå¯†ž®ç¯å…øP¼Œå…‰™˜²ž®˜èƒ½åŠ›è‡³ž®‘äؓ4¾U§ä»¥ä¸Šï¼Œ½W?个数字表½Cºå¯¹æ°´çš„防护能力åQŒåˆ†ä¸?â€?¾U§ã€?/p> 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