MHSYV-5 (4×2×0.5 mm Cat5) Flame-Retardant Underground Mine Fieldbus & Ethernet Data Cable
Category 5 underground coal-mine data cable for fixed horizontal Ethernet and fieldbus runs: MHSYV-5 4x2x0.5 mm with four twisted pairs of 0.5 mm diameter solid bare copper (approx. 24 AWG), low-loss PE insulation and a blue or black flame-retardant mining PVC sheath designed to MT/T 386 (KA/T 386). 100 MHz, 100 ± 15 Ω, 6.2 mm nominal O.D. MOQ 50 m; lead time 7 to 45 working days.
Underground coal mines now run PLC networks, safety monitoring substations, personnel positioning and video over Ethernet and fieldbus links along horizontal roadways. MHSYV-5 is the Category 5 mining data cable for these fixed horizontal runs: four twisted pairs of solid annealed bare copper conductors, low-loss high-density polyethylene insulation and a blue or black flame-retardant mining PVC sheath designed to the MT/T 386 (KA/T 386) flame test.
The designation MHSYV-5 4x2x0.5 mm means four pairs of two conductors, each conductor 0.5 mm in diameter. That is about 24 AWG or 0.20 mm2 of copper, not 0.5 mm2. The reference cable has a nominal outer diameter of 6.2 mm and a mass of about 46 kg/km. It supports transmission from 1 to 100 MHz with a characteristic impedance of 100 ± 15 Ω, a maximum DC conductor resistance of 95 Ω/km at 20 °C and a maximum mutual capacitance of 56 nF/km.
MHSYV-5 is a single, defined construction for fixed horizontal installation in roadways, tunnels and drifts. It is not offered here as Cat5e, Cat6 or Cat6A, and no Gigabit, PoE+ or armoured shaft-suspension rating is implied; those need separate model qualification. For voice-frequency telephone and signal circuits, use MHYV-family communication cable. MOQ is 50 m and lead time is 7 to 45 working days.
Explore the mining and tunneling cable range for related configurations.
MHSYV-5 4x2x0.5 mm Cat5 Mining Data Cable Construction
The representative horizontal sample shows MHSYV-5 4x2x0.5 mm: four twisted pairs of 0.5 mm solid bare copper conductors with high-density PE insulation, laid up under a blue flame-retardant mining PVC sheath of 6.2 mm nominal outer diameter.
| Component | Material and construction |
|---|---|
| Solid Copper Conductors | Solid annealed bare copper, 0.5 mm diameter (approx. 24 AWG, approx. 0.20 mm2). |
| High-Density PE Insulation | Low-loss high-density polyethylene insulation giving stable impedance and low capacitance up to 100 MHz. |
| Twisted Pairs | Four pairs twisted with individual lay lengths to control crosstalk. |
| Pair Lay-Up | The four pairs are laid up into a round core for a compact 6.2 mm nominal cable. |
| Flame-Retardant Mining PVC Sheath | Blue or black flame-retardant PVC outer sheath designed to the MT/T 386 (KA/T 386) flame test. |
MHSYV-5 Type Designation Breakdown
- M: coal-mine cable (Chinese MT/KA designation system)
- H: communication cable
- S: digital (data) transmission
- Y: polyethylene (PE) insulation
- V: PVC sheath
- -5: Category 5 transmission performance (1 to 100 MHz)
MHSYV-5 Underground Mine Ethernet & Fieldbus Applications
Use MHSYV-5 for fixed horizontal Category 5 links; specify separately qualified cable for higher categories, PoE+ or shaft duty.
- Ethernet links between underground switches, PLC stations and safety monitoring substations along horizontal roadways.
- Fieldbus and industrial network segments for conveyor, pump and ventilation automation in coal mines.
- Personnel positioning readers, gas sensors and network cameras connected over Category 5 runs within roadway distance limits.
- Data links in underground substations, control rooms and refuge chambers where a flame-retardant mining sheath is required.
MHSYV-5 vs MHYV, Li-09YSCH PiMF-100 and MGM 110 Selection Boundary
| Product | Purpose | Conductors | Bandwidth | Best fit |
|---|---|---|---|---|
| MHSYV-5 (this page) | Ethernet and fieldbus data | 4 pairs, 0.5 mm solid copper | 1 to 100 MHz (Category 5) | Fixed horizontal mine roadway data links |
| MHYV Mining Communication Cable Family | Voice-frequency telephone and signal | Multi-pair copper | Voice frequency | Mine telephone and signal circuits |
| Li-09YSCH PiMF-100 Cat. 5 Submersible Pump Data Cable | Data to submersible pumps | PiMF screened pairs | 100 MHz (Category 5) | Submersible pump and immersed data links |
| MGM 110 Armoured Mine Telephone and Signal Cable | Telephone and signal, armoured | Multi-pair copper | Voice frequency | Armoured mine telephone and signal routes |
Higher categories (Cat5e, Cat6, Cat6A), Gigabit, PoE+ and armoured shaft versions are not part of the MHSYV-5 designation and need separate qualification.
Related selection resources
- Mining and tunneling cable engineering solutions
- Cable factory acceptance test: routine, sample and type tests explained
- MHYV Mining Communication Cable Family
- Li-09YSCH PiMF-100 Cat. 5 Submersible Pump Data Cable
- MGM 110 Armoured Mine Telephone and Signal Cable
MHSYV-5 Cat5 Mining Data Cable Frequently Asked Questions
Is the 0.5 in MHSYV-5 4x2x0.5 a cross-section in mm2?
No. It is the conductor diameter, 0.5 mm, which corresponds to about 24 AWG or 0.20 mm2 of copper.
Can MHSYV-5 be used for Gigabit Ethernet or PoE+?
MHSYV-5 is a Category 5 cable rated 1 to 100 MHz. Gigabit, PoE+ and higher-category performance are not claimed and need a separately qualified cable.
Can MHSYV-5 hang in a shaft?
No. It is intended for fixed horizontal installation in roadways, tunnels and drifts. Shaft suspension requires an armoured, separately qualified construction.
What are the MOQ and lead time?
The minimum order quantity is 50 m and the manufacturing lead time is 7 to 45 working days, depending on quantity.
MHSYV-5 Construction, Electrical & Installation Specifications
MHSYV-5 Key Specifications
- Category: Cat5, 1 to 100 MHz, 100 ± 15 Ω
- Conductors: 4 pairs, 0.5 mm diameter solid copper (approx. 24 AWG)
- Sheath: Blue or black flame-retardant mining PVC
- Size: 6.2 mm nominal O.D., 46 kg/km
- Supply: MOQ 50 m; 7 to 45 working days
| Parameter | Value |
|---|---|
| Design standard reference | Flame test to MT/T 386 (KA/T 386); conductor to GB/T 3956; the applicable MT/T 818 (KA/T 818) part is confirmed per order |
| Construction | 4 twisted pairs x 2 conductors x 0.5 mm diameter solid bare copper (approx. 24 AWG), PE insulation, flame-retardant PVC sheath |
| Transmission | Category 5, 1 to 100 MHz; characteristic impedance 100 ± 15 Ω |
| Reference dimensions | Nominal O.D. 6.2 mm; reference mass 46 kg/km |
| Installation | Fixed horizontal installation; minimum bending radius 8 x D (approx. 50 mm); -10 °C to +60 °C operation |
| Commercial supply terms | Minimum order quantity 50 m; manufacturing lead time 7 to 45 working days; test report scope confirmed on the quotation drawing |
| Selection boundary vs MHYV and Li-09YSCH PiMF-100 | Choose MHSYV-5 for Category 5 data in fixed mine roadways; choose MHYV-family cable for voice-frequency telephone circuits and Li-09YSCH PiMF-100 for submersible pump data links. |
MHSYV-5 Construction and Reference Dimensions
| Item | MHSYV-5 4x2x0.5 mm |
|---|---|
| Designation | MHSYV-5 4x2x0.5 mm |
| Number of pairs | 4 twisted pairs (8 conductors) |
| Conductor | Solid annealed bare copper |
| Conductor diameter | 0.5 mm (approx. 24 AWG, approx. 0.20 mm²; not 0.5 mm²) |
| Insulation | Low-loss high-density polyethylene (PE) |
| Screen | None in this designation (unscreened twisted pairs) |
| Outer sheath | Blue or black flame-retardant mining PVC |
| Sheath flame test | MT/T 386 (KA/T 386) |
| Nominal outer diameter | 6.2 mm |
| Reference mass | 46 kg/km |
MHSYV-5 Electrical and Installation Parameters
| Parameter | Value |
|---|---|
| Category and bandwidth | Category 5, 1 to 100 MHz |
| Characteristic impedance | 100 ± 15 Ω (1 to 100 MHz) |
| Max DC conductor resistance at 20 °C | 95 Ω/km |
| Max mutual capacitance | 56 nF/km |
| Minimum bending radius | At least 8 x D (approx. 50 mm) |
| Operating temperature | -10 °C to +60 °C (upper limit up to +70 °C where confirmed on the factory datasheet) |
| Installation | Fixed horizontal runs in roadways, tunnels and drifts; not for shaft suspension or reeling |
| Performance boundary | Category 5 only; Cat5e, Cat6, Cat6A, Gigabit and PoE+ ratings need separate qualification |
MHSYV-5 4x2x0.5 mm is the only configuration on this page; the 0.5 mm figure is the conductor diameter, not a 0.5 mm2 cross-section.
Under China National Mine Safety Administration Announcement No. 2 of 2026, MT 818.1 became KA 818.1 and MT/T 818.2 to MT/T 818.14 and MT/T 386 became KA/T 818.2 to KA/T 818.14 and KA/T 386, keeping their years; project-specific certification and test scope is verified per order, and no MA safety-mark coverage is claimed on this page.
ASCII part references for BOM and ERP entry: MHSYV-5 4x2x0.5.
MHSYV-5 Standards & Test References (MT/T 386, KA/T 386, GB/T 3956)
| Standard or specification | Application |
|---|---|
| MT/T 386-2011 (KA/T 386-2011) | Flame-retardant performance test methods and assessment rules for coal-mine cables. |
| GB/T 3956 / IEC 60228 | Conductors of insulated cables: solid annealed copper conductor and maximum DC resistance. |
| Category 5 transmission performance | Channel performance class used for the 1 to 100 MHz rating; test parameters and report scope are agreed per order. |
| MT/T 818 series (KA/T 818 series) | Coal-mine cable standard series; the part applicable to the ordered construction is confirmed per order. |
Certifications and document support
TEBAOFLEX company certificates and quality system documentation
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