煤矿用阻燃电力电缆
Fire retardant power cables in mines
产品用途:产品适用于煤矿井下额定电压0.6/1KV及以下输配电线路。
Scope of application:The product is suitable in coal mine mine shaft rated voltage 0.6/1KV and below loses the distribution line
执行标准 Standards implemented: MT 818-1999
型号名称及使用范围 Model descriptions and Use scope
型 号 Model |
名 称
Descriptions |
使 用 范 围
Scope of application |
MVV |
煤矿用聚氯乙烯绝缘聚氯乙烯护套电力电缆
PVC insulated PVC sheathed power cables for use in mines |
矿井中电能传输线路,但不能承受机械外力作用
Energy transmission line,but not mechanical impact in mines |
MYJV |
煤矿用交联聚乙烯绝缘聚氯乙烯护套电力电缆
XLPE insulated PVC sheathed power cables for use in mines |
矿井中电能传输线路,但不能承受机械外力作用
Energy transmission line,but not mechanical impact in mines |
MVV22 |
煤矿用聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆
PVC insulated steel tape armored PVC sheathed power cables for use in mines |
矿井中电能传输线路,能承受一定机械外力
Energy transmission line,can bearing mechanical impact in mines |
MVV32 |
煤矿用聚氯乙烯绝缘细钢丝铠装聚氯乙烯护套电力电缆
PVC insulated fine steel wire armored PVC sheathed power cables for use in mines |
矿井中电能传输线路,能承受一定的拉力
Energy transmission line,can bearing some full in mines |
MYJV22 |
煤矿用交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆
XLPE insulated steel tape armored PVC sheathed power cables for use in mines |
矿井中电能传输线路,能承受一定机械外力
Energy transmission line,can bearing mechanical impact in mines |
MYJV32 |
煤矿用交联聚乙烯绝缘细钢丝铠装聚氯乙烯护套电力电缆
XLPE insulated fine steel wire armored PVC sheathed power cables for use in mines |
矿井中电能传输线路,能承受一定的拉力
Energy transmission line,can bearing some full in mines |
MYJV42 |
煤矿用交联聚乙烯绝缘粗钢丝铠装聚氯乙烯护套电力电缆
XLPE insulated coarse steel wire armored PVC sheathed power cables for use in mines |
矿井中电能传输线路,能承受较大的拉力
Energy transmission line,can bearing bear full in mines |
注：XLPE绝缘比PVC绝缘具有绝缘强度高，抗老化，耐化学腐蚀及防水性能等优点
XLPE insulation strength the PVC insulation to be higher than, the anti-aging, bears merits and so on chemistry corrosion and waterproof performance.
电缆规格 Specifications
型 号
Model |
芯 数
Core number |
额定电压(KV)
Rated voltage |
标称截面 mm2
Nominal sectional |
主线芯
Master core |
中性线芯(第四根芯)
Neutrality core |
MVV MYJV |
3 |
0.6/1 |
1.5-185 |
- |
MVV22 |
2.5-185 |
MYJV22 |
4-185 |
MVV32 MYJV32 MYJV42 |
4-185 |
MVV MVV22 |
3+1 |
0.6/1 |
4-185 |
2.5-95 |
4 |
4-185 |
电缆结构示意图 IIIustration of cable structure
使用特性 Service characteristics
电缆导体的最高额定温度
Electric cable conductor Max. rated temperature |
XLPE绝缘90℃， PVC绝缘70℃
XLPE insulation90℃, PVC insulation70℃ |
电缆敷设时的环境温度
Cable laying environment temperature |
≥0℃ |
短路时电缆导体的最高温度(持续时间≤5S)
Short circuit electric cable conductor max. temperature |
XLPE绝缘≤250℃， PVC绝缘≤160℃
XLPE insulation≤250℃,PVC insulation≤160℃ |
电缆的最小弯曲半径
Minimun bending radius |
为电缆弯曲试验用圆柱直径的2倍
Uses the column diameter for the electric cable bend test 2 times |
电缆主要技术性能 Major technical performances
1、 电缆导体直流电阻及绝缘电阻 Cable conductor DC resistance and insulated resistance
型 号
Model |
标称截面 (mm2)
nominal sectional |
+20℃导体直流电阻(≤Ω/Km)
DC resistance of the conductor at 20℃ |
+20℃绝缘电阻常数(≥MΩ.Km)
Insulation resistance at 20℃ |
MVV MVV22
MVV32 MYJV
MYV22 MYJV32
MYJV42 |
1.5 |
12.1 |
36.7 |
2.5 |
7.41 |
4 |
4.62 |
6 |
3.08 |
10 |
1.83 |
16 |
1.15 |
25 |
0.727 |
35 |
0.524 |
50 |
0.387 |
70 |
0.268 |
95 |
0.193 |
120 |
0.153 |
150 |
0.124 |
185 |
0.991 |
2、电缆其它主要技术性能 Other major technical performances
(型号Model:MKVV22、MKVV32、MKVV42、MKVV、MKVVR、MKVVP、MKVVP2、MKVVRP)
序 号
Serial number |
项目 Items |
技术性能 Technical performances |
1 |
+20℃时导体直流电阻(≤Ω/Km)
Conductor DC resistance at 20℃ |
见上表 See above table |
2 |
+20℃时绝缘电阻的常数(≥MΩ·Km)
Insulation resistance at 20℃ |
见上表 See above table |
3 |
5min工频交流电压试验
5min power frequency alternating current pressure test |
芯-芯 Core-Core
芯-铠装 Core-Armor |
3500V不击穿 3500V no breakdown |
4 |
4h交流高压试验
4h AC high voltage test |
2400V不击穿 2400V no breakdown |
5 |
单根垂直燃烧试验
Single wire burning test |
MT386 |
6 |
成束燃烧试验
Group burning test |
符合GB/T18380.3标准中B类成束燃烧试验要求
Conforms to GB/T18380.3 standard B kind group burning test |
