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礦用通信電纜技術(shù)文件

[當(dāng)前欄目：技術(shù)支持]????? [發(fā)布日期：2015-09-03]
礦用通信電纜 FIRE-RETARDANT COMMUNICATION CABLES FOR COAL MINES
產(chǎn)品用途:產(chǎn)品用于煤礦井下電話(huà)通信干線、配線和用戶(hù)線路。
Scope of application:The product uses in the coal mine mine shaft telephone communication skeleton line, matches the line and the subscriber's loop
執(zhí)行標(biāo)準(zhǔn) Standards implemented:MT 818-1999
型號(hào)、名稱(chēng)及使用范圍
Model、Descriptions and Use scope
型號(hào)
Model
名稱(chēng)
Descriptions
使用范圍
Use scope
MHYV
聚乙烯絕緣聚氯乙烯護(hù)套礦用通信電纜PE insulated PVC sheathed communication cables for coal mines
用于平巷、斜巷及機(jī)電硐室
Served in level,slanted channels and power house
MHJYV
加強(qiáng)型線芯聚乙烯絕緣聚氯乙烯護(hù)套礦用通信電纜Reinforced core PE insulated PVC sheathed communication cables for coal mines
用于機(jī)械損傷較高的平巷和斜巷
Served in level and slanted channels where mechanical damage is frequent
MHYBV
聚乙烯絕緣鍍鋅鋼絲編織鎧裝聚氯乙烯護(hù)套礦用通信電纜PE insulated galvanized steel wire weave armored PVC sheathed communication cables for coal mines
用于機(jī)械沖擊較高的平巷和斜巷
Served in level and slanted channels where mechanical damage is frequent
MHYAV
聚乙烯絕緣鋁-聚乙烯粘護(hù)層聚氯乙烯護(hù)套礦用通信電纜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
聚乙烯絕緣鋁-聚乙烯粘結(jié)護(hù)層鋼絲鎧裝聚氯乙烯護(hù)套礦用通信電纜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
礦用通信電纜使用特性 Service characteristics
電纜長(zhǎng)期允許工作溫度 Long-term service temperature of the cable conductor
-40℃-+50℃
電纜敷設(shè)溫度 Cable laying temperature
≥-10℃
+25℃時(shí)環(huán)境相對(duì)濕度
Environment relative humidity at 25℃
≤95%
電纜的最小彎曲半徑 Minimun bending radius
MHYV及MHJYV型電纜為電纜外徑的10倍，其它型號(hào)為外徑的15倍 10 times of the cable outer diameter of MHJYV, and 15times for the rest
電纜規(guī)格 Specifications
型號(hào)
Model
規(guī)格
Specifications
導(dǎo)體結(jié)構(gòu)(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

礦用通信電纜主要技術(shù)性能 Major technical performances
1、電纜導(dǎo)體直流電阻及固有衰減 DC resistance of the conductor and Intrinsic attenuation
型號(hào)
Model
20℃時(shí)導(dǎo)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、礦用通信電纜其它主要技術(shù)性能 Other major technical performances
( MHYV、MHJYV、MHYBV MHYAV、MHYA32)
序號(hào)
Serial number
項(xiàng)目
Items
技術(shù)性能
Technical performances
1
+20℃線芯直流電阻(≤Ω/Km)
Line core DC resistance at 20℃
見(jiàn)上表 See above table
2
電纜固有衰減(≤dB/Km)
Cable intrinsic attenuation
見(jiàn)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(yàn)
lmin power frequency alternating current pressure test
1500V不擊穿(50Hz)
1500V Does not penetrate
5
遠(yuǎn)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(duì)直流電阻差(≤%環(huán)阻)
DC resistance difference
2
9
單根垂直燃燒試驗(yàn)
Combustion for single cable test
MT386
10
成束燃燒試驗(yàn)
Combustion for bunched cable test
符合GB/T18380標(biāo)準(zhǔn)中B類(lèi)成束燃燒試驗(yàn)要求
Conforms to GB/T18380 standard B kind becomes ties the burning test
 


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