矿用通信电缆 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 818-1999
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 scope |
|
MHYV
|
聚乙烯绝缘聚氯乙烯护套矿用通信电缆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
|
加强型线芯聚乙烯绝缘聚氯乙烯护套矿用通信电缆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 frequent |
|
MHYBV
|
聚乙烯绝缘镀锌钢丝编织铠装聚氯乙烯护套矿用通信电缆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 frequent |
|
MHYAV
|
聚乙烯绝缘铝-聚乙烯粘护层聚氯乙烯护套矿用通信电缆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
|
聚乙烯绝缘铝-聚乙烯粘结护层钢丝铠装聚氯乙烯护套矿用通信电缆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 |
矿用通信电缆使用特性 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 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
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、矿用通信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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