MHYV礦用阻燃通信電纜MHYV 生產(chǎn)廠家上海
MHYV礦用阻燃通信電纜MHYV 生產(chǎn)廠家上海
鋼絲編織鎧裝礦用通信電纜MHYBV使用條件
●溫度：-40～50℃
●月平均大相對溫度：95%(+25℃)
●安裝敷設(shè)溫度：≥-10℃
●安裝時小彎曲半徑：MHYBV、MHJYV為電纜外徑的10倍，其他型號為電纜外徑的15倍
●電纜型號、名稱及使用范圍
型號
名稱
使用范圍
MHYV
煤礦用聚絕緣聚氯護套通信電纜
用于平巷、斜巷及機電峒室
MHJYV
煤礦用加強型線芯聚絕緣氯護套通信電纜
用于機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套通信電纜
用于機械損傷較高的平巷和斜巷
MHY
煤礦用聚絕緣鋁—聚粘結(jié)護層聚氯護套通信電纜
用于較濕的斜井和平巷
MHYA32
煤礦用聚絕緣鋁—聚粘結(jié)護層鋼絲鎧裝聚氯護套通信電纜
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
型號結(jié)構(gòu)及性能
MHYV
MHJYV
MHYBV
MHY
MHYA32
規(guī)格(對數(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能經(jīng)受歷時1min，1.5kv交流電壓
工作電容≤μF/km
0.06
遠端串音衰減(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、監(jiān)控、軌道運輸作信息傳輸線，也可用于通訊作信息傳輸。
Instrument inbation net news recently, RESEARCHANDMARKETS release "GlobalChromatographyMarket2016-2020" report.Report predicts that, during 2016-2020, chromatographic markets around the world will be 5.42% compound annual rate of growth.Report yzed the 2016-2020 b chromatography the present situation and the growth of the market.According to the report, food safety problem is driving b chromatographic driving force for the development of the market.Analysts say, in the face of the current diversified and fast food supply, in order to ensure food safety and quality, many countries he enacted strict laws and regulations, such as chemical additives, food contaminants, and residue limit, in addition, relevant laws and regulations also nutrients such as the content of unsaturated fatty acids, saturated fatty acid to the rules.Accordingly, the food manufacturing and processing enterprises need to strengthen quality control.Analysts say, chromatographic instrument detection is the latest trend of market development.Combination is a b to two single instrument and technology of tandem work with each other.Whole because of this, the gas chromatography mass spectrometer is applied more and more in recent years, such as environmental ysis, drug testing, explosives, identification of unknown samples, airport security, trace element ysis.In addition, the report pointed out that, in general, the chromatographic system manufacturing costs about $3950, but with more customized services, including accessories, custom sample preparation equipment, instrument manufacturing costs he gone up, instrument manufacturing cost increasing, this is one of the main factors affecting the development of chromatography market.儀器、儀表
