型號JHFFR-5*4高溫控制軟電纜護套

YVFRP-5*4耐寒電纜具有耐寒、柔軟、耐磨、防油等特性，適用于交流額定電壓0.6/1KV及以下具有耐寒
本公司有悠久的歷史，雄厚的技術力量、齊全的檢測設備、豐富的制造經驗，合理的價格，滿足有關工礦企業，科研等而下之單位的需要。目前隨著機械電子工業的調整發展，產品不斷更新，技術上精益求精。
我們的宗旨:以*的產品質量投放市場，質量上要求科技、顧客至上、不斷創新、質量永恒。
由于以上大家講到的原因,電力電纜的規格一般可以較大，大到500平方(常規廠家能生產的范圍)，再大的截面一般能做的廠家就相對少了，而控制電纜的截面一般較小，zui大一般不超過10平方。
從電纜芯數上講,電力電纜根據電網要求,zui多一般為5芯,而控制電纜傳輸控制信號用，芯數較多，根據標準來講多的有61芯，但也可以根據用戶要求生產了。
性能特點:
    1.直流電阻:20℃, 0.4mm銅線,小于等于148Ω/km ，0.5mm銅線,小于等于95Ω/km。
2.絕緣電氣強度:導體之間1min 1kv不擊穿 導體與屏蔽1min 3kv不擊穿
3.絕緣電阻:每根芯線與其余線芯接地，控制電纜大于10000MΩ.km,HYAT電纜大于3000MΩ.km。
4.工作電容:平均值 52±2nF/km，型號JHFFR高溫控制軟電纜護套
5.遠端串音防衛度:150kHZ時組合的功率平均值大于69dB/km。
性能區別
電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)力系統主干線中用以(yi)傳(chuan)輸和(he)分(fen)配大功能電(dian)(dian)(dian)(dian)(dian)(dian)能，控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)從電(dian)(dian)(dian)(dian)(dian)(dian)力系統的配電(dian)(dian)(dian)(dian)(dian)(dian)點把電(dian)(dian)(dian)(dian)(dian)(dian)能直接傳(chuan)輸到各種(zhong)用電(dian)(dian)(dian)(dian)(dian)(dian)設備器(qi)具的電(dian)(dian)(dian)(dian)(dian)(dian)源連(lian)接線路。電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的額定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)壓一般為0.6/1kV及以(yi)上(shang)，控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)主要(yao)為450/750V。同樣規格的電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和(he)控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)在(zai)生產時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的絕緣和(he)護套厚(hou)度比控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)厚(hou)。

高溫(wen)硫化(hua)硅橡膠的(de)物理力學(xue)性(xing)(xing)能(neng)的(de)配合劑。硫化(hua)劑耐(nai)火(huo)(huo)特性(xing)(xing)電纜(lan)通(tong)過GB12666.6《電線電纜(lan)耐(nai)火(huo)(huo)特性(xing)(xing)試(shi)驗方法》(等(deng)同*(火(huo)(huo)焰溫(wen)度950~1000℃，持續供火(huo)(huo)時間為(wei)B級(ji)(火(huo)(huo)焰溫(wen)度750~800℃，持續供火(huo)(huo)時間為(wei)根據用戶要(yao)求，可按GB12666.6A、B任一級(ji)標準通(tong)過耐(nai)火(huo)(huo)試(shi)驗。

目前阻燃劑的用量中氫氧化鋁占居*。有機阻燃劑的選擇有機阻燃劑品種很多有磷系列的阻燃劑和鹵素系列的阻燃劑本課題篩選溴系阻燃劑因為溴系阻燃劑用量少阻燃效果好毒性也小。含溴阻燃劑的高聚物遇火受熱發生下列分解反應溴離子與高聚物反應生成與活性很強的自由基應要使燃燒的阻燃硅橡膠一旦離開火焰時即刻熄滅掉通過許多試驗采用耐燃燒的硅橡膠，厚度應符合所規定的標稱厚度和zui薄厚度的要求。型號JHFFR高溫控制軟電纜護套
在萬(wan)一發生火(huo)災時(shi)(shi)，耐火(huo)電(dian)纜的(de)外護套逐漸分解固化(hua)，其燃燒產物為無機固化(hua)物，有(you)效隔絕(jue)了外部(bu)火(huo)焰氣流(liu)對(dui)絕(jue)緣(yuan)線(xian)芯的(de)侵蝕和沖(chong)擊;電(dian)纜保護層中的(de)鋁帶在高(gao)溫(wen)下(xia)熔解氧化(hua)時(shi)(shi)，能(neng)夠吸收大(da)量(liang)熱能(neng)，鋁的(de)融(rong)化(hua)溫(wen)度(du)為660T，融(rong)化(hua)熱達11670 J/mol，并生成(cheng)的(de)三氧化(hua)鋁層形(xing)成(cheng)熱的(de)屏障，阻(zu)止熱量(liang)向聚合物內部(bu)傳遞，同(tong)時(shi)(shi)減緩了火(huo)焰燃燒沖(chong)擊力，較(jiao)(jiao)好地(di)保護了絕(jue)緣(yuan)層無機殼體的(de)形(xing)成(cheng)。電(dian)纜的(de)絕(jue)緣(yuan)材料硅橡(xiang)膠在高(gao)溫(wen)情況下(xia)，將逐漸0 100 200 300 400 500 600 700 800 900 1000溫(wen)度(du)/'C圖2絕(jue)緣(yuan)電(dian)阻(zu)與溫(wen)度(du)的(de)關系(xi) 殼層具(ju)有(you)較(jiao)(jiao)大(da)的(de)機械強度(du)，能(neng)承受一定的(de)機械沖(chong)擊力。

一(yi)方面使溴離子得以再(zai)生(sheng)另一(yi)方面使自(zi)由基的濃度減(jian)少使燃(ran)燒(shao)的連(lian)鎖反應(ying)受到抑(yi)制燃(ran)燒(shao)速(su)度減(jian)慢甚至停止燃(ran)燒(shao)。已篩選出(chu)一(yi)種金屬(shu)絡合物用雙(shuang)”硫化劑配方設計

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