天津市電纜總廠第一分廠
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mhyv煤礦用聚(氯)乙烯絕緣和聚氯乙烯護套電話電纜
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產(chǎn)品介紹
煤礦用聚(氯)乙烯絕緣和聚氯乙烯護套電纜pvc insulated and pvc sheathed ephone cables for use in mines
產(chǎn)品用途:本產(chǎn)品適用于固定敷設在礦井作通信干線及分線箱與機連接線
scope of application:this product is fit for being laid in fixed placed in mines for the connection of communication trunk lines and junction box and ephones.
執(zhí)行標準 standards implemented: q/3210hl29-2003
型號、名稱及使用范圍 model desc-riptions and use scope
型 號model | 名 稱desc-riptions | 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纜pvc insulated fire retardant pvc sheathed ephone 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纜pvc insulated fire retardant pvc sheathed soft ephone cables for use in mines | 礦井中分線盒、分線箱與機連接的場合where connection between junction box and ephone 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纜pvc insulated steel tape armored fire retardant pvc sheathed ephone 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纜pvc insulated fine round steel wire armored fire retardant pvc sheathed ephone 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纜pe insulated fire retardant pvc sheathed ephone 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纜pe insulated fire retardant pvc sheathed soft ephone 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纜pe insulated steel tape armored fire retardant pvc sheathed ephone 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纜pe insulated fine round steel wire armored fire retardant pvc sheathed ephone 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*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(huán)境相對濕度environment relative humidity at 25℃ | ≤95% |
| 電纜的zui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(guī)格 specifications
型 號model | 規(guī) 格specifications | 導體結構（根數(shù)/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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