MHJYV煤矿用线2*2*7/0.28通讯电缆价格
矿用通信电缆结构;
1、导线:退火裸铜线,铜线直径为0.30,0.42,0.52,0.60,0.70,0.80,0.90(mm)。
2、绝缘材料:高密度聚乙烯或聚丙烯,按照全色谱标准标明绝缘线的颜色。
3、绝缘线对:把二根不同颜色的绝缘线按不同的节距扭绞成对,并采用规定的色谱组合以便识别线对。
4、通信电缆缆芯结构:以1对为基本单位,超过25对的电缆按单位组合,每个单位用规定色谱的单位扎带绕扎,以便识别不同的单位。100对及以上线对的电缆加有1%的预备线对,但zui多不超过6对。缆芯内的间隙用石油膏填充。
5、缆芯包带:用聚脂薄膜带绕包。
6、屏蔽:铜丝屏蔽或用轧纹(或不轧纹)金属带,金属带纵包于通信电缆缆芯包带之外。
7、护套:蓝色高密度聚乙烯。也可提供双层护套的通信电缆。
矿用通信电缆识别和长度标记;电缆外表面有*性识别标记,标记间隔不大于1m,标记内容有:导线直径,线对数量,电缆型号,制造厂厂名代号及制造年份,长度标记以间隔不大于1m标记在外表面上,但与上述标记错开。矿用通信电缆采用全色谱绝缘,铝塑综合护套(即电缆的纵包屏蔽铝带与护套粘结成一体,形成密封护层),具有电气性能*,施工方便的特点。
矿用通信电缆|MHYV矿用通信电缆|MHYA32矿用铠装通信电缆|MHYAV矿用通信电缆|MHYBV矿用通信电缆|矿用通讯电缆|矿用屏蔽通信电缆MHYVP|矿用屏蔽通信电缆MHYVRP|矿用通信电缆MHYV22|矿用通信电缆MHJYV|矿用通讯电缆|矿用防爆电缆|矿用防爆通信电缆|矿用通信电缆型号PUYV,PUYVR,PUYVP,PUYVRP,HUVV,PUYV39-1,MHYV,MHYVR,MHYVP,MHYVRP,MHY32,MHYV32,MHYA32|煤矿用通信电缆|煤矿用阻燃通信电缆|矿用阻燃通信电缆
矿用通信电缆采用标准:MT818.14-1999 MHYV (1×2 2×2 1×4 5×2) ×7/0.28 煤矿用聚乙烯绝缘聚氯乙烯护套矿用通信电缆用于平巷斜巷及机电硐室
煤矿用阻燃通信电缆矿用通信电缆 |
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FIRE-RETARDANT COMMUNICATION CABLES FOR COAL MINES 产品用途:产品用于煤矿井下通信干线、配线和用户线路。 Scope of application:The product uses in the coal mine mine shaft ephone communication skeleton line, matches the line and the subscriber's loop 执行标准 Standards implemented:MT 81814-1999 | |
型号、名称及使用范围矿用通信电缆 Model、Descriptions and Use scope 型号 Model | 名 称 Descriptions | 使 用 范 围 Use scope | MHYV | 煤矿用聚乙烯绝缘聚氯乙烯护套通信电缆 PE insulated PVC sheathed communication cables for coal mines | 用于平巷、斜巷及机电硐室 Served in level,slanted channels and power house | MHJYV | 煤矿用加强型线芯聚乙烯绝缘聚氯乙烯护套通信电缆 Reinforced core PE insulated PVC sheathed communication cables for coal mines | 用于机械损伤较高的平巷和斜巷 Served in level and slanted channels wher mechanical damage is frequent | MHYBV | 煤矿用聚乙烯绝缘镀锌钢丝编织铠装聚氯乙烯护套通信电缆 PE insulated galvanized steel wire weave armored PVC sheathed communication cables for coal mines | 用于机械冲击较高的平巷和斜巷 Served in level and slanted channels wher mechanical damage is frequent | MHYAV | 煤矿用聚乙烯绝缘铝-聚乙烯粘护层聚氯乙烯护套通信电缆 PE insulated Al/PE binding layer PVC sheathed communication cables for coal mines | 用于较潮湿的斜井和平巷 Served in level and slanted channels with high humidity | MHYA32 | 煤矿用聚乙烯绝缘铝-聚乙烯粘结护层钢丝铠装聚氯乙烯护套通信电缆 PE insulated Al/PE binding layer steel wire armored PVC sheathed communication cables for coal mines | 用于竖井或斜井 Served in shaft and slanted shaft |
使用特性 Service characteristics矿用通信电缆 电缆*允许工作温度 Long-term service temperature of the cable conductor | -40℃-+50℃ | 电缆敷设温度 Cable laying temperature | ≥-10℃ | +25℃时环境相对湿度 Environment relative humidity at 25℃ | ≤95% | 电缆的zui小弯曲半径 Minimun bending radius | MHYV及MHJYV型电缆为电缆外径的10倍,其它型号为外径的15倍 10 times of the cable outer diameter of MHJYV, and 15times for the rest |
电缆规格 Specifications 型 号 Model | 规 格 Specifications | 导体结构(根/直径)mm Conductor structure(number/diameter) | MHYV | 1x2、2x2、1x4、5x2 | 7/0.28 | MHJYV | 1x2、2x2 | 4/0.28铜线+3/0.28钢线 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 |
矿用通信电缆 电缆主要技术性能 Major technical performancesMHJYV煤矿用线2*2*7/0.28通讯电缆价格
1、电缆导体直流电阻及固有衰减 DC resistance of the conductor and Intrinsic attenuation矿用通信电缆 型 号 Model | 20℃时导体直流电阻 DC resistance of conductor at 20℃ ≤Ω ( , /km) | 固有衰减(800Hz) Intrinsic attenuation ≤( ,dB/km) | MHYV | 45 | 1.10 | MHJYV | 73 | 1.30 | MHYBV MHYAV MHYA32 | 36.7 | 0.95 |
2、电缆其它主要技术性能 Other major technical performances ( MHYV、MHJYV、MHYBV MHYAV、MHYA32) 序 号 Serial number | 项目 Items | 技术性能 Technical performances | 1 | +20℃线芯直流电阻(≤Ω/Km) Line core DC resistance at 20℃ | 见上表 See above table | 2 | 电缆固有衰减(≤dB/Km) Cable intrinsic attenuation | 见上表 See above table | 3 | +20℃绝缘电阻(≥MΩ Km) Insulating resistance at 20℃ | 3000 | 4 | lmin工频交流电压试验 lmin power frequency alternating current pressure test | 1500V不击穿(50Hz) 1500V Does not penetrate | 5 | 远端串音衰减(≥dB/500) Far-end crosstalk attenuation | 70(800Hz) | 6 | 电感(≤μH/Km) Inductance | 800(800Hz) | 7 | 电缆工作电容(≤μF/Km) Cable service capacity | 0.06(800Hz) | 8 | 工作对直流电阻差(≤%环阻) DC resistance difference | 2 | 9 | 单根垂直燃烧试验 Combustion for single cable test | MT386 | 10 | 成束燃烧试验 Combustion for bunched cable test | 符合GB/T18380标准中B类成束燃烧试验要求 Conforms to GB/T18380 standard B kind becomes ties the burning test |
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MHJYV煤矿用线2*2*7/0.28通讯电缆价格