产品详情
简单介绍：
产品用途：产品用于煤矿井下电话通信干线，配线，用户线路 MHYA32煤矿用阻燃通信电缆 MHYA32煤矿用阻燃通信电缆
详情介绍：
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、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 |
