| FIRE-RETARDANT COMMUNICATION CABLES FOR COAL MINES | 產品用途:產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 執行標準 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 levelslanted 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 | 煤礦用阻燃信號電纜的使用特性以及結構圖
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℃ | | 電纜敷設溫度 Cable laying temperature | ≥-10℃ | +25℃時環境相對濕度
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 | 電纜規格 Specifications | 型 號
Model | 規 格
Specifications | 導體結構(根/直徑)mm
Conductor structure(number/diameter) | | MHYV | 1x2、2x2、1x4、5x2 | 7/0.28 | | MHJYV | 1x2、2x2 | 4/0.28銅線+3/0.28鋼線 4/0.28
copper wire +3/0.28 steel wire | | MHYBV | 5x2、10x2、20x2 | 1/0.8 | | MHYAV | 20x2、30x2、50x2 | | MHYA32 | 30x2、50x2、80x2 |
電纜主要技術性能 Major technical performances
1、電纜導體直流電阻及固有衰減 DC resistance of the conductor and Intrinsic attenuation | 型 號
Model | 20℃時導體直流電阻
DC resistance of conductor at 20℃
≤Ω ( ， /km) | 固有衰減(800Hz)
Intrinsic attenuation
≤( dB/km) | | MHYV | 45 | 1.10 | | MHJYV | 73 | 1.30 | | MHYBV MHYAV MHYA32 | 36.7 | 0.95 | 2、電纜其它主要技術性能 Other major technical performances ( MHYV、MHJYV、MHYBV MHYAV、MHYA32) | 序 號
Serial number | 項目
Items | 技術性能
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 | | 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(≤%環阻)
DC resistance difference | 2 | | 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標準中B類成束燃燒試驗要求
Conforms to GB/T18380 standard B kind becomes ties the burning test | 煤礦用阻燃信號電纜的使用特性以及結構圖電纜結構示意圖煤礦用阻燃信號電纜的使用特性以及結構圖
IIIustration of cable structure 
|