煤礦用阻燃通信電纜
FIRE-RETARDANT COMMUNICATION CABLES FOR COAL MINES
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(hù)套通信電纜
PE insulated PVC sheathed communication cables for coal mines用于平巷、斜巷及機(jī)電硐室
Served in level,slanted channels and power house
MHJYV煤礦用加強(qiáng)型線芯聚乙烯絕緣聚氯乙烯護(hù)套通信電纜
Reinforced core PE insulated PVC sheathed communication cables for coal mines用于機(jī)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(hù)套通信電纜
PE insulated galvanized steel wire weave armored PVC sheathed communication cables for coal mines用于機(jī)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(hù)層聚氯乙烯護(hù)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(hù)層鋼絲鎧裝聚氯乙烯護(hù)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%
電纜的最小彎曲半徑 Minimun bending radiusMHYV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)mm
Conductor structure(number/diameter)
MHYV1x2、2x2、1x4、5x27/0.28
MHJYV1x2、2x24/0.28銅線+3/0.28鋼線 4/0.28
copper wire +3/0.28 steel wire
MHYBV5x2、10x2、20x21/0.8
MHYAV20x2、30x2、50x2
MHYA3230x2、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
型 號
Model20℃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)
MHYV451.10
MHJYV731.30
MHYBV MHYAV MHYA3236.70.95
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見上表 See above table
3+20℃絕緣電阻(≥MΩ Km) Insulating resistance at 20℃3000
4lmin工頻交流電壓試驗
lmin power fre