型號 Model | 規(guī)格 Specifications | 導(dǎo)體結(jié)構(gòu)(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(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 Model | 20℃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) |
MHYV | 45 | 1.10 |
MHJYV | 73 | 1.30 |
MHYBV MHYAV MHYA32 | 36.7 | 0.95 |
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 |
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(huán)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 |