產品用途:產品適用于煤礦井下監測、控制系統作低頻信號傳輸線。
Scope of application:The product is suitable for the coal mine mine shaft monitor, the control system makes the low-frequency signal transmission line
執行標準 Standards i
型 號 Model | 名 稱 Descriptions | 使 用 范 圍 Use scope |
| MHYV（PUYV） | 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 mine | 用于井下平巷、斜巷及機電硐室作普通信號傳輸 Used in level; or slanted channels and power house |
| MHYVR（PUYVR） | 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 mine | 用于井下平巷、斜巷及機電硐室作普通信號傳輸 Used in level; or slanted channels and power house |
| MHYVP（PUYVP） | 煤礦用聚乙烯絕緣銅絲編織屏蔽聚氯乙烯護套通信電纜 PE insulated copper wire weave shielded PVC sheathed communication cables | 用于井下干擾較大的場合作信號傳輸 Served in coal mine where interference is strong |
| MHYVRP（PUYVRP） | 煤礦用聚乙烯絕緣聚氯乙烯護套銅絲編織屏蔽通信軟電纜 PE insulated copper wire weave shielded PVC sheathed communication soft cables | 用于井下干擾較大的場合作信號傳輸 Served in coal mine where interference is strong |
| MHYBV（PUYV31） | 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 tinned steel wire weave armored PVC sheathed communication cables | 用于井下平巷或斜巷作主信號傳輸能承受一定的機械沖擊力 Served in level and slanted channels where the mechanic impact is strong |
| MHY32 （PUYV39、39-1） | 煤礦用聚乙烯絕緣聚氯乙烯護套鋼絲鎧裝通信電纜 PE insulated steel wire armored PVC sheathed communication cables | 用于豎井或斜井作主信號傳輸能承受較大的拉力 Served as major signal line in shaft or slanted shaft in coal mines,capable of being under considerable pull force |
使用特性 Service characteristics
| 電纜*允許工作溫度 Long-term service temperature of the cable conductor | 70℃ |
| 電纜敷設溫度 Cable laying temperature | ≥0℃ |
| +25℃時環境相對濕度 Environment relative humidity at 25℃ | ≤95% |
| 電纜的傳輸頻率 Transmission frequency of cable | ≤30KHz |
| 電纜的zui小彎曲半徑 Minimun bending radius | MHYVR及MHYVRP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 |
電纜結構示意圖
IIIustration of cable structure
電纜規格 Specifications
型 號 Model | 標準截面 Nominal sectional area（mm2） | ||||||||||||
0.5 | 0.75 | 0.8 1.0 | 1.5 | 0.5 | 0.75 | 0.8 | 1.0 | 1.5 0.5 | 0.75 | 0.8 | 1.0 | 1.5 | |
- | 芯 數Core No. | 對 數Pair No. | 導體結構Conductor structure | ||||||||||
MHYV | 2-7 | 2-10 | 1/0.8 7/0.30 | 1/0.97 7/0.37 | - | 1/1.13 7/0.43 | 1/1.38 7/0.52 | ||||||
MHYVR | 2-7 | 2-10 | - | 42/0.15 | - | 32/0.20 | 48/0.20 | ||||||
MHYVP | 2-7 | 2-10 | 1/0.8 7/0.30 | 1/0.97 7/0.37 | - | 1/1.13 7/0.43 | 1/1.38 7/0.52 | ||||||
MHYVRP | 2-7 | 2-10 | - | 42/0.15 | - | 32/0.20 | 48/0.20 | ||||||
MHYBV | 2-7 | 2-10 | - | 1/0.97 7/0.37 42/0.15 | 1/1.0 | 1/1.13 7/0.43 32/0.20 | 1/1.38 7/0.52 48/0.20 | ||||||
MHY32 | - | 3-7 | 2-19 | - | 1/0.97 7/0.37 | - | 1/1.13 7/0.43 | 1/1.38 7/0.52 | |||||
電纜主要技術性能 Major technical performances
1、電纜導體直流電阻和電纜固有衰減 DC resistance of the conductor and Intrinsic attenuation
型 號 Model | 標稱截面 Nominal sectional area mm2 | 導 體 結 構 Conductor structure | 20℃時導體直流電阻 DC resistance of the conductor at 20℃ （≤Ω/Km） | 固有衰減 Intrinsic attenuation （800Hz） （≤dB/Km） | |
種 類 Type | 根數/單線標稱直徑 PC.No./Single track diameter（mm） | ||||
MHYV MHYVRP MHYBV | 0.5 | 1 | 1/0.8 | 36.0 | 1.0 |
2 | 7/0.30 | 36.0 | |||
0.75 | 1 | 1/0.97 | 24.5 | 0.8 | |
2 | 7/0.37 | 24.5 | |||
6 | 42/0.15 | 26.0 | |||
0.8 | 1 | 1/1.0 | 25.8 | 0.7 | |
1.0 | 1 | 1/1.13 | 18.1 | 0.65 | |
2 | 7/0.43 | 18.1 | |||
5 | 32/0.20 | 19.5 | |||
1.5 | 1 | 1/1.38 | 12.1 | 0.5 | |
2 | 7/0.52 | 12.1 | |||
5 | 48/0.20 | 13.3 | |||
2、電纜其它主要技術性能 Other major technical performances
（型號 Model:MHYV、MHYVR、MHYVRP、MHYVP、MHYBV、MHY32）
序 號 Serial number | 項目Items | 技術性能 Technical performances | |
1 | +20℃線芯導體直流電阻（≤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℃ | 5000 | |
4 | lmin工頻交流電壓試驗 lmin power frequency alternating current pressure test | 芯-芯 Core - core 芯-屏蔽 Core - hield | 1500V不擊穿（50Hz） 1500V Does not penetrate |
5 | 電纜工作電容（≤μF/Km） Cable service capacity | 0.06（800Hz） | |
6 | 遠端串音衰減（≥dB/500） Far-end crosstalk attenuation | 70（800Hz） | |
7 | 電感（≤μH/Km） Inductance | 800（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 | |
