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Mining Flame Retardant Communication Cable(1)
1.Execution standards
MT81814-1999
Executive Standard
MT818.14-1999
Models and specification ofcables and wires(see table 1)
table 1
Model | Conductor structure(No.of cores/diameter or single core) | No.of pairs | Desc riptions | Scope of appl ication |
| MHYV | 7/0.28 | 1x2 2x2 1x4 5x2 | PE insulated PVC sheathedcommunication cables for coal mines | Served in level，slanted channelsand powrer house |
| MHJYV | 4/0.28 copper wire +3/028 steel wire | 1x2 2x2 | Reinforced core PE insulated PVC sheathedcommunication cables for coalmines | Served in level and slanted channelswhere mechanical damage isfrequent |
| MHYBV | 1/0.8 | 5x2 10x2 20x2 | PE insulated galvanized steel wire weavearmored PVC sheathedcommunication cables for coal mines | Served in level and slanted channelswhere mechanical damage isfrequent |
| MHYAV | 1/0.8 | 20x2 30x2 50x2 | PEinsulated A/PE binding layer PVCsheathed communication cablesfor coal mines | Served in level and slanted channelswith high humidity |
| MHYA32 | 1/0.8 | 30x2 50x2 80x2 | PE insulated AI/PE binding layer steel wi rearmored PVC sheathedcommunication cables for coal mines | Served in shaft and slanted shaft |
Fire retardantcommunication cables for coal mines...........................................MH
Copper core...........................................................................................................................omitted
PEinsulation.............................................................................................................................................Y
AI/PE binding layer sheath...................................................................................................A
Weavedarmor...............................................................................................................................................B
PVCsheath...........................................................................................................................................V
Fine roundsteelwire armorandPVC outersheath.................................32
Steelstrengthen copper wire core................................................................................................J
3.Expression
Models and specifications are expressed as the following:
1、PEinsulated Al/PE biding laver inner protected steel wirearmored PVC sheathed communication cable with 30twisted cores for coal mines is expressed as MHYA32 30x2
2、PEinsulated PVC sheathed communication cable for coal mines with one twisted core is expressed as MHYV 1x4
4. Illustration of product structure
5.Productstructure,size and parameters(see table3)
Model | Specifications (Pair No.xCore No.) | Conductor structure Core number/diameter of single core | Nominal thickness of insulation | Refe rence outer diameter |
| MHYV | 1x2 | 7/0.28 | 0.45 | ≤7.1 |
| 2x2 | 7/0.28 | 0.45 | ≤8.6 | |
| 1x4 | 7/0.28 | 0.45 | ≤8.0 | |
| 5x2 | 7/0.28 | 0.45 | ≤11.5 | |
| MHJYV | 1x2 | pper wire+3/0.28 steel wire | 0.45 | ≤7.1 |
| 2x2 | pper wire+3/0.28 steel wire | 0.45 | ≤8.6 | |
| MHYBV | 5x2 | 1/0.8 | 0.35 | ≤15.6 |
| 10x2 | 1/0.8 | 0.35 | ≤18.4 | |
| 20x2 | 1/0.8 | 0.35 | ≤23.4 | |
| MHYAV | 20x2 | 1/0.8 | 0.35 | ≤23.4 |
| 30x2 | 1/0.8 | 0.35 | ≤27.4 | |
| 50x2 | 1/0.8 | 0.35 | ≤32.6 | |
| MHYA32 | 30x2 | 1/0.8 | 0.35 | ≤32.6 |
| 50x2 | 1/0.8 | 0.35 | ≤37.3 | |
| 80x2 | 1/0.8 | 0.35 | ≤43.0 |
6. Majortechnicalperformances and parameters
7.Service characteristics
1，Long-term service temperature of the cable conductor:-40~+50℃
2、Maximum average relative humiditys95%(at+25℃)
3、Temperature for laying and installing cables shall not be higher than- 10℃
4、Minimum bending radius: 10 times of the cable outer diameter forMHJYV:and 15 times for the rest
Tell:+86-152-6220-7107
Email: jinxincable@yzjxdl.com
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