型號(hào)、名稱(chēng)及使用范圍
Model、Descriptions and Use scope
型號(hào) | 名 稱(chēng) | 使 用 范 圍 |
MHYV | 煤礦用聚乙烯絕緣聚氯乙烯護(hù)套通信電纜 PE insulated PVC sheathed communication cables for coal mines | 用于平巷、斜巷及機(jī)電硐室 Served in level,slanted channels and power house |
MHJYV | 煤礦用加強(qiáng)型線芯聚乙烯絕緣聚氯乙烯護(hù)套通信電纜 Reinforced core PE insulated PVC sheathed communication cables for coal mines | 用于機(jī)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(hù)套通信電纜 PE insulated galvanized steel wire weave armored PVC sheathed communication cables for coal mines | 用于機(jī)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(hù)層聚氯乙烯護(hù)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(jié)護(hù)層鋼絲鎧裝聚氯乙烯護(hù)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 |
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(shè)溫度 Cable laying temperature | ≥-10℃ |
+25℃時(shí)環(huán)境相對(duì)濕度 Environment relative humidity at 25℃ | ≤95% |
電纜的zui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(hào)為外徑的15倍 10 times of the cable outer diameter of MHJYV, and 15times for the rest |
電纜規(guī)格 Specifications
型 號(hào) | 規(guī) 格 | 導(dǎo)體結(jié)構(gòu)(根/直徑)mm |
MHYV | 1x2、2x2、1x4、5x2 | 7/0.28 |
MHJYV | 1x2、2x2 | 4/0.28銅線+3/0.28鋼線 4/0.28 |
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(hào) | 20℃時(shí)導(dǎo)體直流電阻 | 固有衰減(800Hz) |
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(hào) | 項(xiàng)目 | 技術(shù)性能 |
1 | +20℃線芯直流電阻(≤Ω/Km) Line core DC resistance at 20℃ | 見(jiàn)上表 See above table |
2 | 電纜固有衰減(≤dB/Km) Cable intrinsic attenuation | 見(jiàn)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(yàn) lmin power frequency alternating current pressure test | 1500V不擊穿(50Hz) 1500V Does not penetrate |
5 | 遠(yuǎn)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(duì)直流電阻差(≤%環(huán)阻) DC resistance difference | 2 |
9 | 單根垂直燃燒試驗(yàn) Combustion for single cable test | MT386 |
10 | 成束燃燒試驗(yàn) Combustion for bunched cable test | 符合GB/T18380標(biāo)準(zhǔn)中B類(lèi)成束燃燒試驗(yàn)要求 Conforms to GB/T18380 standard B kind becomes ties the burning test |
電纜結(jié)構(gòu)示意圖
IIIustration of cable structure
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