Fire retardant power cables in mines
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產(chǎn)品用途:產(chǎn)品適用于煤礦井下額定電壓0.6/1KV及以下輸配電線路。
Scope of application:The product is suitable in coal mine mine shaft rated voltage 0.6/1KV and below loses the distribution line
執(zhí)行標(biāo)準(zhǔn) Standards implemented: MT 818-1999
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型號(hào)名稱及使用范圍 Model descriptions and Use scope
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型 號(hào) Model
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名 稱
Descriptions
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使 用 范 圍
Scope of application
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MVV
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煤礦用聚氯乙烯絕緣聚氯乙烯護(hù)套電力電纜
PVC insulated PVC sheathed power cables for use in mines |
礦井中電能傳輸線路但不能承受機(jī)械外力作用
Energy transmission linebut not mechanical impact in mines |
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MYJV
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煤礦用交聯(lián)聚乙烯絕緣聚氯乙烯護(hù)套電力電纜
XLPE insulated PVC sheathed power cables for use in mines |
礦井中電能傳輸線路但不能承受機(jī)械外力作用
Energy transmission linebut not mechanical impact in mines |
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MVV22
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煤礦用聚氯乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜
PVC insulated steel tape armored PVC sheathed power cables for use in mines |
礦井中電能傳輸線路能承受一定機(jī)械外力
Energy transmission linecan bearing mechanical impact in mines |
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MVV32
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煤礦用聚氯乙烯絕緣細(xì)鋼絲鎧裝聚氯乙烯護(hù)套電力電纜
PVC insulated fine steel wire armored PVC sheathed power cables for use in mines |
礦井中電能傳輸線路能承受一定的拉力
Energy transmission linecan bearing some full in mines |
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MYJV22
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煤礦用交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜
XLPE insulated steel tape armored PVC sheathed power cables for use in mines |
礦井中電能傳輸線路能承受一定機(jī)械外力
Energy transmission linecan bearing mechanical impact in mines |
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MYJV32
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煤礦用交聯(lián)聚乙烯絕緣細(xì)鋼絲鎧裝聚氯乙烯護(hù)套電力電纜
XLPE insulated fine steel wire armored PVC sheathed power cables for use in mines |
礦井中電能傳輸線路能承受一定的拉力
Energy transmission linecan bearing some full in mines |
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MYJV42
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煤礦用交聯(lián)聚乙烯絕緣粗鋼絲鎧裝聚氯乙烯護(hù)套電力電纜
XLPE insulated coarse steel wire armored PVC sheathed power cables for use in mines |
礦井中電能傳輸線路能承受較大的拉力
Energy transmission linecan bearing bear full in mines |
注：XLPE絕緣比PVC絕緣具有絕緣強(qiáng)度高，抗老化，耐化學(xué)腐蝕及防水性能等優(yōu)點(diǎn)
XLPE insulation strength the PVC insulation to be higher than the anti-aging bears merits and so on chemistry corrosion and waterproof performance.
電纜規(guī)格 Specifications
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型 號(hào)
Model
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芯 數(shù)
Core number
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額定電壓(KV)
Rated voltage
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標(biāo)稱截面 mm2
Nominal sectional
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主線芯
Master core
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中性線芯(第四根芯)
Neutrality core
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MVV MYJV
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3
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0.6/1
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1.5-185
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-
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MVV22
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2.5-185
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MYJV22
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4-185
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MVV32 MYJV32 MYJV42
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4-185
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MVV MVV22
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3+1
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0.6/1
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4-185
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2.5-95
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4
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4-185
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電纜結(jié)構(gòu)示意圖 IIIustration of cable structure
使用特性 Service characteristics
電纜導(dǎo)體的最高額定溫度
Electric cable conductor Max. rated temperature |
XLPE絕緣90℃， PVC絕緣70℃
XLPE insulation90℃ PVC insulation70℃ |
電纜敷設(shè)時(shí)的環(huán)境溫度
Cable laying environment temperature |
≥0℃ |
短路時(shí)電纜導(dǎo)體的最高溫度(持續(xù)時(shí)間≤5S)
Short circuit electric cable conductor max. temperature |
XLPE絕緣≤250℃， PVC絕緣≤160℃
XLPE insulation≤250℃PVC insulation≤160℃ |
電纜的最小彎曲半徑
Minimun bending radius |
為電纜彎曲試驗(yàn)用圓柱直徑的2倍
Uses the column diameter for the electric cable bend test 2 times |
電纜主要技術(shù)性能 Major technical performances
1、 電纜導(dǎo)體直流電阻及絕緣電阻 Cable conductor DC resistance and insulated resistance
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型 號(hào)
Model
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標(biāo)稱截面 (mm2)
nominal sectional
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+20℃導(dǎo)體直流電阻(≤Ω/Km)
DC resistance of the conductor at 20℃
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+20℃絕緣電阻常數(shù)(≥MΩ.Km)
Insulation resistance at 20℃
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MVV MVV22
MVV32 MYJV
MYV22 MYJV32
MYJV42
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1.5
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12.1
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36.7
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2.5
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7.41
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4
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4.62
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6
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3.08
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10
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1.83
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16
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1.15
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25
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0.727
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35
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0.524
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50
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0.387
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70
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0.268
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95
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0.193
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120
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0.153
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150
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0.124
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185
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0.991
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2、電纜其它主要技術(shù)性能 Other major technical performances
(型號(hào)Model:MKVV22、MKVV32、MKVV42、MKVV、MKVVR、MKVVP、MKVVP2、MKVVRP)
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序 號(hào)
Serial number
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項(xiàng)目 Items
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技術(shù)性能 Technical performances
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1
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+20℃時(shí)導(dǎo)體直流電阻(≤Ω/Km)
Conductor DC resistance at 20℃ |
見上表 See above table |
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2
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+20℃時(shí)絕緣電阻的常數(shù)(≥MΩ·Km)
Insulation resistance at 20℃ |
見上表 See above table |
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3
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5min工頻交流電壓試驗(yàn)
5min power frequency alternating current pressure test |
芯-芯 Core-Core
芯-鎧裝 Core-Armor |
3500V不擊穿 3500V no breakdown |
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4
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4h交流高壓試驗(yàn)
4h AC high voltage test |
2400V不擊穿 2400V no breakdown |
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5
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單根垂直燃燒試驗(yàn)
Single wire burning test |
MT386 |
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6
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成束燃燒試驗(yàn)
Group burning test |
符合GB/T18380.3標(biāo)準(zhǔn)中B類成束燃燒試驗(yàn)要求
Conforms to GB/T18380.3 standard B kind group burning test |
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