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型號、名稱及使用范圍 Model descrtptions and Use scope
型 號
Model |
名 稱
Descrtptions |
使 用 范 圍
Scope of application |
| MHVV(HUVV) | 煤礦用聚氯乙烯絕緣阻燃聚氯乙烯護套電話電纜 PVC insulated fire retardant PVC sheathed telephone cables for use in mines |
礦井中一般場合 General circumstances in mines |
| MHVVR(HUVVR) | 煤礦用聚氯乙烯絕緣阻燃聚氯乙烯護套軟電話電纜 PVC insulated fire retardant PVC sheathed soft telephone cables for use in mines |
礦井中分線盒、分線箱與電話機連接的場合 Where connection between junction box and telephone is required in mines |
| MHVV22(HUVV22) | 煤礦用聚氯乙烯絕緣鋼帶鎧裝阻燃聚氯乙烯護套電話電纜 PVC insulated steel tape armored fire retardant PVC sheathed telephone cables for use in mines |
礦井中承受一定沖擊力和壓力的場合 Where cables are under some impact and pressure in the mine |
| MHVV32(HUVV32) | 煤礦用聚氯乙烯絕緣細圓鋼絲鎧裝阻燃聚氯乙烯護套電話電纜 PVC insulated fine round steel wire armored fire retardant PVC sheathed telephone cables for use in mines |
礦井中垂直敷設或承受較大拉力的場合 Vertically laid or laid where the cables are under big impact and pull force in mines |
| MHYV(HUYV) | 煤礦用聚乙烯絕緣阻燃聚氯乙烯護套電話電纜 PE insulated fire retardant PVC sheathed telephone cables for use in mines |
礦井中一般場合 General circumstances in mines |
| MHYVR(HUYVR) | 煤礦用聚乙烯絕緣阻燃聚氯乙烯護套軟電話電纜 PE insulated fire retardant PVC sheathed soft telephone cables for use in mines |
礦井中一般場合 General circumstances in mines |
| MHYV22(HUYV22) | 煤礦用聚乙烯絕緣鋼帶鎧裝阻燃聚氯乙烯護套電話電纜 PE insulated steel tape armored fire retardant PVC sheathed telephone cables for use in mines |
礦井中承受一定沖擊力和壓力的場合 Where cables are under some impact and pressure in the mine |
| MHYV32(HUYV32) | 煤礦用聚乙烯絕緣細圓鋼絲鎧裝阻燃聚氯乙烯護套電話電纜 PE insulated fine round steel wire armored fire retardant PVC sheathed telephone cables for use in mines |
礦井中垂直敷設或承受較大拉力的場合 Vertically laid or laid where the cables are under big impact and pull force in mines |
電纜結構示意圖
IIIustration of cable structure
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% |
| 電纜的最小彎曲半徑 Minimun bending radius |
MHVV MHYV MHVVR MHYVR 型電纜為電纜外徑的15倍，其它型號為外徑的20倍 15 times of the cable outer diameter of MHVV MHYV MHVVR MHYVR and 20times for the rest |
電纜規格 Specifications
型 號
Model |
規 格
Specifications |
導體結構（根數/直徑）mm
Conductor structure(number/diameter) |
| MHYVR MHVVR | 1X2 | 1/0.28鍍錫銅線 +6/0.28鍍錫鋼線 1/0.28 tinned copper wire +6/0.28 tinned steel wire |
| MHVV22 MHVV32 MHYV22 MHYV32 | 2X2-100X2 | 1/0.5; 1/0.8 |
| MHVV MHYV | 1X2-100X2 | 1/0.5; 1/0.8 |
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℃導體直流電阻（≤Ω/Km）
DC resistance of conductor at 20℃ |
固有衰減（800Hz）≤db/Km
Intrinsic attenuation |
MHVVR MHYVR
|
260
|
4.63
|
MHVV22 MHVV32 MHYV22 MHYV32 MHVV MHYV
|
95（0.5mm）; 36.7(0.8mm)
|
1.32(0.5mm); 0.95(0.8mm)
|
2、電纜其它技術性能 Other major technical performances
序 號
Serial number |
項 目
Items |
型 號Model:MHVV MHVVR MHVV22 MHVV32
|
型 號Model:MHYV MHYVR MHYV22 MHYV32
|
|
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（≤dm/Km） Cable intrinsic attenuation |
見上表 See above table | ||
3
|
+20℃絕緣電阻（≥MΩ·Km） Insulating resistance at 20℃ |
110 ; 40(MHVVR) | 3000 ; 110(MHYVR) | |
4
|
1min工頻交流電壓試驗 lmin power frequency alternating current pressure test |
芯-芯core - core 芯-鎧裝層core - armoring |
1000V不擊穿 1000V no breakdown |
1500V不擊穿 1500V no breakdown |
5
|
工作電容（≤μF/Km） Service capacity |
0.12 | 0.06 | |
6
|
單根垂直燃燒試驗 Single wire burning test |
MT386 | ||
7
|
成束燃燒試驗 Group burning test |
符合GB/T 18380.3標準中B類成束試驗要求 Conforms to GB/T18380.3 standard B types group test |
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