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style="display:none;">[甉|°”癄¡§‘åQšå¦‚何选用ç”늺¿ç”늼†é˜È‡ƒ½{‰çñ”åQŸè€ƒè™‘˜q?个因素]:ç”늺¿ç”늼†ä¼´éšç€½C¾ä¼šæ™ø™ƒ½åŒ–越来越普及åQŒçŽ°ä»£åŒ–布线ž®±åƒäººç±»çš„神¾lç³»¾lŸä¸€æ øP¼Œå»¶äŽ×到徏½{‘中的每一个角落,里面布满了密密麻éºÈš„¾U¿ç¼†åQŒå°¤å…¶åƒçŽ°åœ¨æ­£åœ¨å¤§åŠ›å»ø™®¾çš„数据中心,各种各样的摩天大楼基建,他们所承蝲的线¾~†æ•°é‡?..</div><div class="brand_news_con"><p style="text-indent:2em;"> ç”늺¿ç”늼† </p> <p style="text-indent:2em;"> 伴随着½C¾ä¼šæ™ø™ƒ½åŒ–越来越普及åQŒçŽ°ä»£åŒ–布线ž®±åƒäººç±»çš„神¾lç³»¾lŸä¸€æ øP¼Œå»¶äŽ×到徏½{‘中的每一个角落,里面布满了密密麻éºÈš„¾U¿ç¼†åQŒå°¤å…¶åƒçŽ°åœ¨æ­£åœ¨å¤§åŠ›å»ø™®¾çš„数据中心,各种各样的摩天大楼基建,他们所承蝲的线¾~†æ•°é‡æ›´æ˜¯ä¸€ä¸ªæƒŠäººçš„数量。大家每‹Æ¡åšå·¥ç¨‹æˆ–者做™å¹ç›®æ—¶åªä¼šæƒ³åˆŽÍ¼š˜q™ä¸ª™å¹ç›®è¦ç”¨åˆ°å¤šž®‘åž‹åïLš„¾U¿ç¼†ã€è¦ç”¨åˆ°å¤šå°‘¾c?如此众多的电¾U¿ç”µ¾~†åž‹åøP¼Œè€Œå®ƒä»¬çš„耐火é˜È‡ƒè¦æ±‚却被äºÞZ»¬å¿½è§† åQŒä»Žè€Œæˆä¸ºå¼•èµïL«ç„¡š„巨大隐患åQŒé‚£ä¹ˆé¡¹ç›®å·¥½E‹è®¾è®¡ä¸­è¦è€ƒè™‘ç”늺¿ç”늼†è€ç«é˜È‡ƒ½{‰çñ”的几个要素?金福友电¾~†æä¾›å‡ ç‚¹å¾è®®ï¼Œä»¥ä¾›å¤§å®¶å‚考: </p> <p style="text-indent:2em;"> 一、电¾~†æ•·è®„¡Ž¯å¢?</p> <p style="text-indent:2em;"> ç”늼†æ•¯‚®¾çŽ¯å¢ƒåœ¨å¾ˆå¤§ç¨‹åº¦ä¸Šå†›_®šç”늼†å—外火源侵袭机率大小和着火后延燃成灾的可能性大ž®ï¼Œä¾‹å¦‚åQšç›´åŸ‹æˆ–单独½I¿ç®¡çš„(金属åQŒçŸ³‹‚‰ï¼Œæ°´æƒ”½Ž¡ï¼‰å¯ä»¥é‡‡ç”¨éžé˜»ç‡ƒç”µ¾~†ï¼Œè€Œç½®äºŽåŠå¯†é—­æ¡¥æž¶ã€çº¿æ§½æˆ–专用ç”늼†æ²Ÿï¼ˆå¸¦ç›–板的åQ‰ï¼Œå¯ä»¥é€‚当降低é˜È‡ƒè¦æ±‚一åˆîCºŒ¾U§ï¼Œå»ø™®®é€‰ç”¨é˜È‡ƒC¾c»ï¼Œæˆ–者阻燃D¾c…R€?</p> <p style="text-indent:2em;"> 因在此环境下受外因äçR袭机会少åQŒå³ä½¿ç€ç‡ƒç”±äºŽç©ºé—´ç‹­æ°´é—­å¡žä¹Ÿå®ÒŽ˜“自熄åQŒä¸æ˜“成灾。反之,室内明敷åQŒç©¿æˆ¿çˆ¬æ¥û|¼Œæˆ–者暗道,夹层åQŒéš§‹zžå»Šé“,äºø™¿¹ç«ç§å®ÒŽ˜“到达着火后½Iºé—´ç›¸å¯¹è¾ƒå¤§òq¶ç©ºæ°”容易流通者,光™˜»ç‡ƒç­‰¾U§åº”适度调高。徏议选用é˜È‡ƒB¾c»ï¼Œç”šè‡³é˜È‡ƒA¾c…R€?</p> <p style="text-indent:2em;"> 当上˜q°çŽ¯å¢ƒæ›´å¤„于高温炉前炉后或易燃易爆的化工åQŒçŸ³æ²¹ï¼ŒçŸ¿äº•çŽ¯å¢ƒä¸­åˆ™å¿…须从严处置åQŒå®é«˜ä¸ä½Žã€‚徏议选用é˜È‡ƒA¾c»ï¼Œæˆ–者采用无卤低烟阻燃耐火A¾c…R€?</p> <p style="text-align:center;text-indent:2em;"> <img src="http://oss.cnelc.com/kindeditor/img/20191022/20191022130102_4877.png" alt="" /> </p> <p style="text-indent:2em;"> <br /> </p> <p style="text-indent:2em;"> 金福友电¾~?</p> <p style="text-indent:2em;"> 二、电¾~†æ•·è®¾æ•°é‡å¤šž®?</p> <p style="text-indent:2em;"> ç”늼†æ•°é‡å½±å“ç”늼†é˜È‡ƒ½{‰çñ”的高低,主要是同一½Iºé—´å†…电¾~†éžé‡‘属材料的多ž®‘确定阻燃类别高低,在计½Ž—电¾U¿ç”µ¾~†éžé‡‘属材料体积的时候,同一½Iºé—´çš„概忉|˜¯æŒ‡ç”µ¾~†ç€ç«æ—¶åQŒå…¶ç«ç„°æˆ–热量可以不受阻挡地辐射到附˜q‘电¾U¿ç”µ¾~†åƈ能够ž®†å…¶å¼•ç‡ƒçš„空间。比如有防火板相互隔¼›Èš„桁架或槽盒其同一通道应指每一个桥架或槽盒åQŒè‹¥ä¸Šä¸‹æˆ–å·¦åÏx— ä»ÖM½•é˜²ç«éš”离åQŒä¸€æ—¦ç€ç«ç›¸äº’媄响,其电¾~†éžé‡‘属体积计算时以¾lŸä¸€¾U›_…¥ä¸ºå®œã€?</p> <p style="text-indent:2em;"> 三、电¾~†çš„¾_—细 </p> <p style="text-indent:2em;"> 在同一通道内电¾~†éžé‡‘属物体¿U¯ç¡®å®šä¹‹åŽï¼Œ¾lÆD§‚ç”늼†å¤–径大小åQŒè‹¥ž®çš„居多åQˆç›´å¾?0mm以下åQ‰åˆ™é˜È‡ƒ¾cÕdˆ«å®œä»Žä¸¥å¤„理,反之若大的居多(直径40mm以上åQ‰å®œåå‘低çñ”别,其原因是外径较小ç”늼†å¸çƒ­é‡å°åQŒå®¹æ˜“引燃,而外径偏大的ç”늼†å¸çƒ­é‡å¤§ä¸å®œå¼•ç‡ƒã€‚大火åŞ成火灄¡š„关键是引燃,引而不燃火自熄åQŒç‡ƒè€Œä¸ç†„火成灾ã€?</p> <p style="text-indent:2em;"> <span>四、阻燃与非阻燃电¾~†ä¸å®œåœ¨åŒä¸€é€šé“中æ؜æ”?/span> </p> <p style="text-indent:2em;"> 在同一通道中敷讄¡š„ç”늺¿ç”늼†åQŒå…¶é˜È‡ƒ½{‰çñ”一致或相近为宜åQŒä½Ž¾U§åˆ«æˆ–非é˜È‡ƒç”늼†çš„åšg燃对于高¾U§åˆ«çš„电¾~†è€Œè¨€å³äؓ外火源存在,此时即ä‹ÉA¾c»é˜»ç‡ƒç”µ¾~†ä¹Ÿæœ‰ç€ç«çš„可能性ã€?</p> <p style="text-indent:2em;"> 五、项目工½E‹çš„重要½E‹åº¦å’Œç«ç„¡š„危害深度而异¼‹®å®šç”늼†é˜È‡ƒ¾U§åˆ« </p> <p style="text-indent:2em;"> 寚w‡å¤§å·¥½E‹é¡¹ç›®ç”¨çš„电¾~†ï¼Œæ¯”如30MW以上机组åQŒè¶…高徏½{‘,银行金融中心åQŒå¤§åž‹ã€ç‰¹å¤§åž‹äººæµé›†ä¸­åœºæ‰€½{‰ï¼Œåœ¨å…¶å®ƒå› ç´ åŒ½{‰æ¡ä»¶ä¸‹å…‰™˜»ç‡ƒçñ”别宜偏高、偏严,å»ø™®®é€‰æ‹©ä½ŽçƒŸæ— å¤è€ç«é˜È‡ƒåž‹ç”µ¾~†ã€?</p> <p style="text-indent:2em;"> 六、动力电¾~†ä¸ŽéžåŠ¨åŠ›ç”µ¾~†åº”互相隔离敯‚®¾ </p> <p style="text-indent:2em;"> 相对而言åQŒåŠ¨åŠ›ç”µ¾~†å®¹æ˜“着火,因äؓ它是热态的åQŒè€Œä¸”有短路击½I¿çš„可能性,而控制电¾~†ä¿¡åähŽ§åˆ¶ç”µ¾~†å› ç”µåŽ‹ä½Žï¼Œè´Ÿè²ž®å¤„于冷态,本èín不易èµïL«åQŒå› æ­¤å¾è®®ï¼Œåœ¨åŒä¸€½Iºé—´äºŒè€…éš”¼›ÀL•·è®¾ï¼Œòq¶ä¸”动力ç”늼†åœ¨ä¸ŠåQŒæŽ§åˆ¶ç”µ¾~†åœ¨ä¸‹ï¼Œå› ç«åŠ¿å‘上,òq¶åœ¨ä¸­é—´åŠ é˜²ç«éš”¼›ÀLŽªæ–½ï¼Œé˜²æ­¢ç€çƒ§ç‰©æº…落ã€?</p> <p style="text-indent:2em;"> 以上是金¼›å‹ç”늼†ä¸ºå¤§å®¶æ€È»“的六个阻燃电¾~†æ•·è®‘֏Šä½¿ç”¨æ—¶åº”考虑到的因素åQŒäº‹å®žä¸ŠåQŒåªæœ‰åœ¨æ–½å·¥æ—¶å……分地考虑各种隐患发生的可能性。做到科学敷设,é˜È‡ƒç”늼†æ‰èƒ½çœŸæ­£åœ°å‘挥作用,做到真正的用电安全ã€?</p></div><div class="meneame"><span class="disabled">< </span><span class="current">1</span> <span class="disabled">> </span></div> <div style="text-align: center;padding-top: 10px;"><img src="/images/code.jpg" alt="å…Ïx³¨æœ‰æƒŠå–?" /></div> <div class="news_bot_mes">中国工业电器¾|‘:此内容è{载于合作媒体或互联网其它¾|‘ç«™åQŒä¸­å›½å·¥ä¸šç”µå™¨ç½‘登蝲此文å‡ÞZºŽä¼ é€’更多信息之目的åQŒåƈ不意味着赞同其观ç‚ÒŽˆ–证实其描˜qŽÍ¼</br>新闻、技术文章投½E¿QQåQ?28246603 邮箱åQšnews@cnelc.com</div> <h2 class="related">相关阅读</h2> <ul class="related_con"> <li>· <a href="/text/32/191028/AD100906085_1.html" target="_blank">甉|°”癄¡§‘åQšåŒºå—链到底是啥</a></li><li>· <a href="/text/32/191028/AD100906069_1.html" target="_blank">甉|°”癄¡§‘电器癄¡§‘工业癄¡§‘视频癄¡§‘工业¿U‘æ™®</a></li><li>· <a href="/Article/15/191024/AD100905983_1.html" target="_blank">甉|°”癄¡§‘åQšä»€ä¹ˆæ˜¯é˜²çˆ†ç¯ï¼Ÿ</a></li><li>· <a 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