煤矿用阻燃通信电缆

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 where 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 where 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

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

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

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

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