通訊電纜MHYV MHYV 基本用途江西省
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本產(chǎn)品適用于以下作短距離配線：一級配線、二級配線，并與分線設(shè)備相連;引入建筑物內(nèi)的各分支電纜，即屋內(nèi)配線電纜;沿建筑物墻壁敷設(shè)的電纜，即墻壁配線電纜;架空用配線電纜。 結(jié)構(gòu)型式 1、芯線元件的絕緣厚度：參照GB11327.2-89局用電纜規(guī)定。 2、纜芯組成的絞合形式有： a.纜芯由若干單位絞合而成，或由若干基本單位直接絞合而成。纜芯的推薦結(jié)構(gòu)見表2。 b.單位由若干基本單位或子單位絞合而成。單位分為兩種：50對單位和100對單位。 c.單位由若干對線組絞合而成?；締挝环譃閮煞N：10對基本單位和25對基本單位。 d.必要時，可將若干對線組絞合成等效于一個基本單位的若干子單位（扎帶（絲）顏色均與所代替的基本單位相同），再將這些子單位絞合成單位或纜芯。 一．聚氯絕緣和護套低頻通信電纜HPVV 適用范圍 本產(chǎn)品用于線路的始端和終端，供聯(lián)接市內(nèi)電話電纜至分線箱或配線架之用。也可作短距離布線。 二．聚氯絕緣和護套低頻通信電纜HPVV使用特性 電纜使用溫度為-10℃～50℃，電纜安裝敷設(shè)時的溫度應(yīng)不低于0℃。彎曲半徑不小于電纜外徑的10倍。 三．聚氯絕緣和護套低頻通信電纜HPVV產(chǎn)品型號、名稱 聚氯絕緣和護套低頻通信電纜HPVV 四．聚氯絕緣和護套低頻通信電纜HPVV使用條件： 沿建筑物墻壁敷設(shè)或架空敷設(shè)。 五．聚氯絕緣和護套低頻通信電纜HPVV產(chǎn)品結(jié)構(gòu)示意圖 1. 對絞絕緣線芯2.聚酯薄膜3.鋁箔4.縱放銅絲5.護套 六．聚氯絕緣和護套低頻通信電纜HPVV規(guī)格范圍 型號：HPVV 導(dǎo)體直徑：0.5 標稱對數(shù)：5、10、15、20、25、30、40、50、80、100、150、200 備注：電纜允許預(yù)備線對，其數(shù)量不超過電纜標稱對數(shù)的1%，其各項要求與一般線對相同。出廠時合格對數(shù)不應(yīng)小于標稱對數(shù)。 七．配線電纜HPVV規(guī)格尺寸及重量 規(guī)格 導(dǎo)體直徑 Mm 對數(shù) 電纜計算外徑 Mm 計算重量 Kg/km 5×2×0.5 0.5 5 8.35 78 10×2×0.5 10 10.72 124 15×2×0.5 15 12.99 188 20×2×0.5 20 13.54 222 25×2×0.5 25 15.64 270 30×2×0.5 30 16.11 304 40×2×0.5 40 17.18 372 50×2×0.5 50 19.75 454 80×2×0.5 80 24.39 715 100×2×0.5 100 27.28 864 150×2×0.5 150 31.67 909 200×2×0.5 200 35.31 1540 八．聚氯絕緣和護套低頻通信電纜HPVV主要技術(shù)性能 1.20℃時導(dǎo)線直流電阻不大于95.0Ω/km 2.20℃時絕緣電阻不小于60MΩ﹒km 3.耐壓試驗交流電壓500V 50Hz，2min不擊穿。 九．聚氯絕緣和護套低頻通信電纜HPVV交貨規(guī)定：電纜制造長度應(yīng)不小于200m。在雙方同意下允許以任何長度的電纜交貨。 |
近,職位,決定聯(lián)合實驗室建設(shè)17個合作,揚州大學(xué)"農(nóng)業(yè)和農(nóng)產(chǎn)品聯(lián)合實驗室合作"。是經(jīng)批準在農(nóng)業(yè)的合作聯(lián)合實驗室。"Agriculture and agricultural products safety international cooperation joint laboratory", which is based on yangzhou university institute of agricultural science and technology for development platb, to the ministry of education key laboratory of plant functional genomics poultry, the ministry of education key laboratory of preventive medicine and state key laboratory of crop genetic physiological breeding point of jiangsu province, jiangsu food crops to modern industrial technology of collaborative innovation center, jiangsu province, the animal disease and animal disease prevention and control of collaborative innovation center for technical support, combined agriculture and local agriculture, in giessen, Germany, Canada, stuss liebig university, plant breeding research center, university of Maryland department of animal and poultry science, the university of Kansas state grain science and industry system, at the Pasteur institute in France, tohoku university graduate school of agricultural science, Spain Santiago DE hole t at the university of la and Nagasaki university in Japan, deployment of innovation chain around livestock products industry chain, focusing on crop germplasm innovation and utilization of resources, efficient safety production technology innovation and application of crops, using animal germplasm resources buation and innovation, the animal disease and animal disease prevention and control technology innovation and application, the agricultural ecological environment protection and safety of livestock products 5 research direction such as technology innovation and application of major scientific research tasks, deepen international substantive cooperation, strengthen the mechanism innovation, policy incentives and security team fusion and condition, to build a international research in the field of agriculture and agricultural products safety platb and talent base, produced a number of international leading original scientific research achievements, built a first-class research team, first-class experimental environment, first-class scientific research achievements of open joint laboratories, internationalization.儀器、儀表
