长期供应质优价廉的矿用通信电缆(图)

煤矿用阻燃通信电缆

FIRE-RETARDANT COMMUNICATION CABLES FOR COAL MINES

产品用途:产品用于煤矿井下电话通信干线、配线和用户线路。

Scope of application:The product uses in the coal mine mine shaft telephone 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

Model、Descriptions and Use scope

型号

Model名 称

Descriptions使 用 范 围

Use scopeMHYV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 houseMHJYV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 where mechanical damage is frequentMHYBV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 where mechanical damage is frequentMHYAV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 humidityMHYA32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电缆长期允许工作温度 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%电缆的最小弯曲半径 Minimun bending radiusMHYV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)MHYV1x2、2x2、1x4、5x27/0.28MHJYV1x2、2x24/0.28铜线+3/0.28钢线 4/0.28

copper wire +3/0.28 steel wireMHYBV5x2、10x2、20x21/0.8MHYAV20x2、30x2、50x2MHYA3230x2、50x2、80x2

电缆主要技术性能 Major technical performances

1、电缆导体直流电阻及固有衰减 DC resistance of the conductor and Intrinsic attenuation型 号

Model20℃时导体直流电阻

DC resistance of conductor at 20℃

≤Ω ( ， /km)固有衰减(800Hz)

Intrinsic attenuation

≤( ,dB/km)MHYV451.10MHJYV731.30MHYBV MHYAV MHYA3236.70.952、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 performances1+20℃线芯直流电阻(≤Ω/Km)

Line core DC resistance at 20℃见上表 See above table2电缆固有衰减(≤dB/Km)

Cable intrinsic attenuation见上表 See above table3+20℃绝缘电阻(≥MΩ Km) Insulating resistance at 20℃30004lmin工频交流电压试验

lmin power frequency alternating current pressure test1500V不击穿(50Hz)

1500V Does not rate5远端串音衰减(≥dB/500)

Far-end crosstalk attenuation70(800Hz)6电感(≤μH/Km)

Inductance800(800Hz)7电缆工作电容(≤μF/Km)

Cable service capacity0.06(800Hz)8工作对直流电阻差(≤%环阻)

DC resistance difference29单根垂直燃烧试验

Combustion for single cable testMT38610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 es ties the burning test电缆结构示意图

IIIustration of cable structure