MHY電纜型號(hào) 生產(chǎn)廠家四川省
MHY電纜型號(hào) 生產(chǎn)廠家四川省
鋼絲編織鎧裝礦用通信電纜MHYBV使用條件
●溫度：-40～50℃
●月平均大相對(duì)溫度：95%(+25℃)
●安裝敷設(shè)溫度：≥-10℃
●安裝時(shí)小彎曲半徑：MHYBV、MHJYV為電纜外徑的10倍，其他型號(hào)為電纜外徑的15倍
●電纜型號(hào)、名稱及使用范圍
型號(hào)
名稱
使用范圍
MHYV
煤礦用聚絕緣聚氯護(hù)套通信電纜
用于平巷、斜巷及機(jī)電峒室
MHJYV
煤礦用加強(qiáng)型線芯聚絕緣氯護(hù)套通信電纜
用于機(jī)械損傷較高的平巷和斜巷
MHYBV
煤礦用聚絕緣鍍鋅鋼絲編織鎧裝聚氯護(hù)套通信電纜
用于機(jī)械損傷較高的平巷和斜巷
MHY
煤礦用聚絕緣鋁—聚粘結(jié)護(hù)層聚氯護(hù)套通信電纜
用于較濕的斜井和平巷
MHYA32
煤礦用聚絕緣鋁—聚粘結(jié)護(hù)層鋼絲鎧裝聚氯護(hù)套通信電纜
用于豎井和斜井
●鋼絲編織鎧裝礦用通信電纜MHYBV結(jié)構(gòu)數(shù)據(jù)及主要技術(shù)支持
型號(hào)結(jié)構(gòu)及性能
MHYV
MHJYV
MHYBV
MHY
MHYA32
規(guī)格(對(duì)數(shù)\芯數(shù))
1×2
2×2
1×4
5×2
1×2
2×2
5×2
10×2
20×2
20×2
30×2
50×2
30×2
50×2
80×2
線芯結(jié)構(gòu)根數(shù)/直徑mm
7/0.28
4/0.28銅線
+3/0.28鋼線
1/0.8
粘接護(hù)層及鎧裝層
——
——
編織0.2—0.3的鍍鋅鋼絲
鋁—聚帶繞包
聚繞包及鍍鋅鋼絲鎧裝
電纜外徑≤mm
7.1
8.6
8.0
11.5
7.1
8.6
15.6
18.4
23.4
23.4
27.4
32.6
32.6
37.3
43.0
電纜參考重量kg/km
58
89
68
134
58
87
218
323
512
472
678
1006
1450
1943
2828
電纜導(dǎo)電線芯直流電阻≤Ω/km
45
73
36.7
絕緣線芯絕緣電阻≥Ω/km
3000
耐交流電壓
電纜絕緣線芯間及絕緣線芯與屏蔽間應(yīng)能經(jīng)受歷時(shí)1min，1.5kv交流電壓
工作電容≤μF/km
0.06
遠(yuǎn)端串音衰減(500m)≥dB
70
固有衰減≤dB/km
1.10
1.30
0.95
電纜工作時(shí)的直流電阻差≤
環(huán)阻的2%
鋼絲編織鎧裝礦用通信電纜MHYBV用途：主要用于煤礦井下監(jiān)測(cè)、監(jiān)控、軌道運(yùn)輸作信息傳輸線，也可用于通訊作信息傳輸。
With the increasingly close combination of modern science and technology and industry, institutions of higher learning and key laboratory as the feature of advanced productivity incubators he become more and more obvious, laboratories and universities specialized in combination with the people's livelihood industry, promote the separation of complex samples by chromatographic instrument ysis and the rapid development of purification equipment, all kinds of new, more applicable chromatographic techniques and instruments.However, separation science and the market including technology not only has a high perbance liquid chromatograph, gas chromatograph, ion chromatograph, more low pressure liquid chromatograph, fast chromatograph, chemical sensing, thin layer chromatography, capillary electrophoresis and discontinuous flow or continuous flow yzer.Besides, there are some high-end detector, such as mass spectrometry or infrared can also combination and separation technology.But for the moment, and the key laboratory in colleges and universities has been applied more widely or gas phase and liquid phase separation technique.Using chromatography of college professional auxiliary research is becoming more and more popular.The chromatograph in recent years in the teaching plan of purchasing also share more highlights, according to incomplete statistics, liquid chromatography instrument sales alone ytical instruments of the world market for 20% of the total sales, world sales amounting to billions of dollars a year.Separation technology, China in 2013 sales of $1.552 billion, the separation of instruments in the world market share accounted for a large part, and from 2009 to 2014, erage growth rate is 14%.Chromatograph growing market demand, based on the use of the chromatograph in the constantly expanding, the college offers professional nearly dozens of professional research field with different professional chromatograph, food, medicine, biology, chemistry, and geology energy used chromatographic techniques to do scientific research and auxiliary equipment.Statistics show nearly 9% of the b separation technology requirements are from China.At present, the influence of liquid chromatograph and gas chromatograph in China, the largest of each technology are occupied by more than 10% b market share.And with the scientific research in colleges and universities gradually thorough, the demand for testing instrument is growing increasingly, and makes the chromatograph of procurement ranks as the leading role in university laboratory equipment.High perbance liquid chromatograph as one of the most important separation technology, its application field test involving environmental, food and pharmaceuticals, and these three areas in China has maintained a rapid growth momentum, is expected to make the HPLC to maintain 13.6% annual growth rate over the next five years, in 2015, HPLC machine system is expected to be broken annual sales of $200 million.Mainly high-end for research of universal instrument and application of the conventional ysis of special high perbance liquid chromatograph.儀器、儀表
