型號
Model

名 稱
Descriptions

使 用 范 圍 
Use scope

MHYV

煤礦用聚乙烯絕緣聚氯乙烯護套通信電纜
PE insulated PVC sheathed communication cables for coal mines

用于平巷、斜巷及機電硐室
Served in level,slanted channels and power house

MHJYV

煤礦用加強型線芯聚乙烯絕緣聚氯乙烯護套通信電纜
Reinforced core PE insulated PVC sheathed communication cables for coal mines

用于機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套通信電纜
PE insulated galvanized steel wire weave armored PVC sheathed communication cables for coal mines

用于機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-聚乙烯粘護層聚氯乙烯護套通信電纜
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-聚乙烯粘結護層鋼絲鎧裝聚氯乙烯護套通信電纜
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

電纜長期允許工作溫度 Long-term service temperature of the cable conductor

-40℃-+50℃

電纜敷設溫度 Cable laying temperature

≥-10℃

+25℃時環境相對濕度
Environment relative humidity at 25℃

≤95%

電纜的小彎曲半徑 Minimun bending radius

MHYV及MHJYV型電纜為電纜外徑的10倍，其它型號為外徑的15倍 10 times of the cable outer diameter of MHJYV, and 15times for the rest

型 號
Model

規 格
Specifications

導體結構(根/直徑)mm
Conductor structure(number/diameter)

MHYV

1x2、2x2、1x4、5x2

7/0.28

MHJYV

1x2、2x2

4/0.28銅線+3/0.28鋼線 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 號
Model

20℃時導體直流電阻
DC resistance of conductor at 20℃
≤Ω ( ， /km)

固有衰減(800Hz)
Intrinsic attenuation
≤( ,dB/km)

MHYV

45

1.10

MHJYV

73

1.30

MHYBV MHYAV MHYA32

36.7

0.95

序 號
Serial number

項目
Items

技術性能
Technical performances

1

+20℃線芯直流電阻(≤Ω/Km)
Line core DC resistance at 20℃

見上表 See above table

2

電纜固有衰減(≤dB/Km)
Cable intrinsic attenuation

見上表 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
lmin power frequency alternating current pressure test

1500V不擊穿(50Hz)
1500V Does not penetrate

5

遠端串音衰減(≥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

工作對直流電阻差(≤%環阻)
DC resistance difference

2

9

單根垂直燃燒試驗
Combustion for single cable test

MT386

10

成束燃燒試驗
Combustion for bunched cable test

符合GB/T18380標準中B類成束燃燒試驗要求
Conforms to GB/T18380 standard B kind becomes ties the burning test