煤礦用阻燃通信電纜產(chǎn)品用途:產(chǎn)品用于煤礦井下電話通信干線、配線和用戶線路。
Scope of application:The product uses in the coal mine mine shaft telephone communication skeleton line, matches the line and the subscriber's loop
執(zhí)行標(biāo)準(zhǔn) Standards implemented:MT 81814-1999
型號、名稱及使用范圍
Model、Descriptions and Use scope
型號Model
名 稱Descriptions
使 用 范 圍 Use scope
MHYV
煤礦用聚乙烯絕緣聚氯乙烯護套通信電纜PE insulated PVC sheathed communication cables for coal mines
用于平巷、斜巷及機電硐室Served in level,slanted channels and power house
MHJYV
煤礦用加強型線芯聚乙烯絕緣聚氯乙烯護套通信電纜Reinforced core PE insulated PVC sheathed communication cables for coal mines
用于機械損傷較高的平巷和斜巷Served in level and slanted channels where mechanical damage is frequent
MHYBV
煤礦用聚乙烯絕緣鍍鋅鋼絲編織鎧裝聚氯乙烯護套通信電纜PE insulated galvanized steel wire weave armored PVC sheathed communication cables for coal mines
用于機械沖擊較高的平巷和斜巷Served in level and slanted channels where mechanical damage is frequent
MHYAV
煤礦用聚乙烯絕緣鋁-聚乙烯粘護層聚氯乙烯護套通信電纜PE insulated Al/PE binding layer PVC sheathed communication cables for coal mines
用于較潮濕的斜井和平巷Served in level and slanted channels with high humidity
MHYA32
煤礦用聚乙烯絕緣鋁-聚乙烯粘結(jié)護層鋼絲鎧裝聚氯乙烯護套通信電纜PE insulated Al/PE binding layer steel wire armored PVC sheathed communication cables for coal mines
用于豎井或斜井Served in shaft and slanted shaft
使用特性 Service characteristics
電纜長期允許工作溫度 Long-term service temperature of the cable conductor
-40℃-+50℃
電纜敷設(shè)溫度 Cable laying temperature
≥-10℃
+25℃時環(huán)境相對濕度Environment relative humidity at 25℃
≤95%
電纜的*小彎曲半徑 Minimun bending radius
MHYV及MHJYV型電纜為電纜外徑的10倍,其它型號為外徑的15倍 10 times of the cable outer diameter of MHJYV, and 15times for the rest
電纜規(guī)格 Specifications
型 號Model
規(guī) 格Specifications
導(dǎo)體結(jié)構(gòu)(根/直徑)mmConductor structure(number/diameter)
1x2、2x2、1x4、5x2
7/0.28
1x2、2x2
4/0.28銅線+3/0.28鋼線 4/0.28copper wire +3/0.28 steel wire
5x2、10x2、20x2
1/0.8
20x2、30x2、50x2
30x2、50x2、80x2
電纜主要技術(shù)性能 Major technical performances
1、電纜導(dǎo)體直流電阻及固有衰減 DC resistance of the conductor and Intrinsic attenuation
20℃時導(dǎo)體直流電阻DC resistance of conductor at 20℃≤Ω ( , /km)
固有衰減(800Hz)Intrinsic attenuation≤( ,dB/km)
45
1.10
73
1.30
MHYBV MHYAV MHYA32
36.7
0.95
2、電纜其它主要技術(shù)性能 Other major technical performances
( MHYV、MHJYV、MHYBV MHYAV、MHYA32)
序 號Serial number
項目Items
技術(shù)性能Technical performances
1
+20℃線芯直流電阻(≤Ω/Km)Line core DC resistance at 20℃
見上表 See above table
2
電纜固有衰減(≤dB/Km)Cable intrinsic attenuation
3
+20℃絕緣電阻(≥MΩ Km) Insulating resistance at 20℃
3000
4
lmin工頻交流電壓試驗lmin power frequency alternating current pressure test
1500V不擊穿(50Hz)1500V Does not penetrate
5
遠端串音衰減(≥dB/500)Far-end crosstalk attenuation
70(800Hz)
6
電感(≤μH/Km)Inductance
800(800Hz)
7
電纜工作電容(≤μF/Km)Cable service capacity
0.06(800Hz)
8
工作對直流電阻差(≤%環(huán)阻)DC resistance difference
9
單根垂直燃燒試驗Combustion for single cable test
MT386
10
成束燃燒試驗Combustion for bunched cable test
符合GB/T18380標(biāo)準(zhǔn)中B類成束燃燒試驗要求Conforms to GB/T18380 standard B kind becomes ties the burning test
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