Flame retardant mine communication cable
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Description
Product use
Flame retardant communication cable for coal mine is suitable for fixed and mobile underground communication.
2. Executive Standards; MT818. 14-2009 flame retardant cable for coal mine
3. Application characteristics
3.1 the long-term allowable working temperature of the cable is - 40 ℃ ~ + 50 ℃, and the monthly average relative humidity is 95% (+ 25 ℃)
The allowable temperature of cable laying and installation shall not be lower than - 10 ℃;
3.2 small bending radius of cable: mhyv and mhjyv cables are 10 times of the cable outer diameter; Other models are 15 times the outer diameter.
4. Cable model and name
Type number | Name | Main application scope |
MHYV | Communication cable with polyethylene insulation and PVC sheath for coal mine | It is used for common signal transmission in mine, and suitable for fixed laying |
MHYVR | Communication flexible cable with polyethylene insulation and PVC sheath for coal mine | It is used for general signal transmission in the mine and can be used for mobile use |
MHYVP | PE insulated braided shielded PVC sheathed communication cable for coal mine | It is used for signal transmission in places with large electric field interference, and suitable for fixed laying |
MHYVRP | Polyethylene insulated braided shield PVC sheathed communication flexible cable for coal mine | It is used for signal transmission in places with large electric field interference, and the cable is soft |
MHYBV | Polyethylene insulated galvanized steel wire braided armored PVC sheathed communication cable for coal mine | It is used for field cooperative main signal transmission with high mechanical impact |
MHY32 | Polyethylene insulated steel wire armored vinyl chloride sheathed communication cable for coal mine | It is used for main signal transmission in drift, shaft or inclined shaft |
5. Cable specification and scope
Type number | Standard cross section (mm2) | ||||||
zero point seven five | one | one point five | zero point seven five | one | one point five | ||
Number of cores | Check number | ||||||
MHYV | 2~7 | 2~10 | |||||
MHYVR | |||||||
MHYVP | |||||||
MHYVRP | |||||||
MHYBV | |||||||
MHY32 | — | 3~7 | 2~19 | ||||
6. Typical product structure diagram



