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產品詳情
  • 產品名稱:MHYA32煤礦用阻燃通信電纜

  • 產品型號:MHYA32
  • 產品廠商:紅旗電纜
  • 產品文檔:
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簡單介紹:
產品用途:產品用于煤礦井下電話通信干線,配線,用戶線路 MHYA32煤礦用阻燃通信電纜 MHYA32煤礦用阻燃通信電纜
詳情介紹:

電纜主要技術性能 Major technical performances

1、電纜導體直流電阻及固有衰減 DC resistance of the conductor and Intrinsic attenuation

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

2、電纜其它主要技術性能 Other major technical performances

( MHYV、MHJYV、MHYBV MHYAV、MHYA32)

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


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