MVV & MVV22 (0.6/1–1.8/3 kV) PVC Insulated & Steel-Tape Armoured Underground Mine Power Cable (MT/T 818.12)

MVV and MVV22 are the PVC-insulated, PVC-sheathed fixed power cables of the Chinese coal-mine cable system, defined in MT/T 818.12-2009 (now KA/T 818.12-2009) for 0.6/1 kV and 1.8/3 kV distribution. They feed lighting transformers, switchgear, pumps, fans and roadway equipment where the cable is fixed on hangers or brackets rather than dragged. The flame-retardant PVC insulation and the black, blue or red mining PVC sheath are designed to the MT/T 386 (KA/T 386) flame test, with a maximum conductor temperature of 70 °C.

MVV is unarmoured; MVV22 adds double steel-tape armour for crush protection in roadways and inclined drifts. The verified production range covers three-core, 3+1 and four-core layouts. At 0.6/1 kV, three-core MVV runs from 3×1.5 and MVV22 from 3×2.5 to 3×300 mm2; at 1.8/3 kV both run from 3×10 to 3×300 mm2. The 3+1 layouts run from 3×4+1×2.5 mm2 at 0.6/1 kV, or 3×10+1×6 mm2 at 1.8/3 kV, up to 3×300+1×150 mm2, and four equal cores run from 4×4 to 4×185 mm2 at both voltages.

Neither MVV nor MVV22 can carry its own weight in a vertical run. For inclined or vertical shafts the family includes MVV32 with fine steel-wire armour and MVV42 with thick steel-wire armour; their core and size combinations are engineered per order and are never copied from the MVV22 tape-armoured range. Where a 90 °C XLPE rating is needed, use the MYJV family instead.

Explore the mining and tunneling cable range for related configurations.

MVV and MVV22 PVC Mine Power Cable Construction & Armour

The representative horizontal sample shows an MVV22 0.6/1 kV 3x95+1x50 mm2 cable: three phase conductors and one reduced neutral conductor of annealed copper with flame-retardant PVC insulation, a PVC inner sheath, double galvanized steel tape armour and a black flame-retardant mining PVC outer sheath.

MVV Type Designation Breakdown

• M: coal-mine cable (Chinese MT/KA designation system)
• V (first): PVC insulation
• V (second): PVC sheath
• 22: double steel tape armour with PVC outer sheath
• 32: fine round steel wire armour, engineered per order
• 42: thick round steel wire armour, engineered per order

MVV and MVV22 0.6/1 to 1.8/3 kV Coal-Mine Applications & Route Scope

Use MVV and MVV22 for fixed, supported routes; move to the steel-wire armoured branch wherever the cable must carry pull or its own weight.

• Underground lighting transformers, switchgear, pumps and ventilation fans fed at 0.6/1 kV or 1.8/3 kV on fixed routes.
• Horizontal roadways and inclined drifts where cables on hangers or brackets need steel-tape crush protection (MVV22).
• Substations, workshops and surface plant buildings at Chinese-standard coal mines where PVC-insulated 70 C cable is specified.
• Inclined and vertical shaft routes using the steel-wire armoured MVV32 or MVV42 branch, engineered per order.

MVV and MVV22 vs VBbShvng(A)-LS, Fixed Mining Power Cable and MY Selection Boundary

For 90 C XLPE insulation or voltages up to 8.7/10 kV in the same standard system, specify the MYJV family.

Related selection resources

• Mining and tunneling cable engineering solutions
• Rubber cable vs PVC cable: temperature, flexing, oil and where each belongs
• Fixed Mining Power Cable — PVC / HEPR, SWA / STA Options
• VBbShvng(A)-LS GOST 31996 Steel-Tape Armoured Underground Mine Power Cable
• MY, MYQ, WD-MY and WD-MYP Flexible Coal Mining Cable

MVV and MVV22 Frequently Asked Questions

Can MVV22 be hung in a vertical shaft?

No. Steel tape armour carries no tensile load, so neither MVV nor MVV22 can support its own weight vertically. Use MVV42 with thick steel-wire armour for vertical shafts, or MVV32 for inclined shafts; both are engineered per order.

What sizes are available for MVV and MVV22?

Three-core 3x1.5 (MVV) or 3x2.5 (MVV22) to 3x300 mm2 at 0.6/1 kV and 3x10 to 3x300 mm2 at 1.8/3 kV; 3+1 core from 3x4+1x2.5 or 3x10+1x6 to 3x300+1x150 mm2; four-core 4x4 to 4x185 mm2 at both voltages.

Are MVV32 and MVV42 the same size as MVV22?

No. Their core and size combinations and dimensions are engineered per order around the wire armour and are never copied from the MVV22 steel-tape range.

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 construction and quantity.

MVV and MVV22 Verified Size Range & Technical Specifications

MVV and MVV22 Key Specifications

• Voltage: 0.6/1 kV and 1.8/3 kV
• Insulation: PVC, 70 °C, flame-retardant mining PVC sheath
• Layouts: 3-core, 3+1 and 4-core up to 3x300+1x150 mm²
• Armour: None (MVV) or double steel tape (MVV22)
• Supply: MOQ 50 m; 7 to 45 working days

MVV and MVV22 Verified Core and Cross-Section Range

MVV22, MVV32 and MVV42 Armour Variants

Steel tape armour on MVV22 is not a tensile member: clamp MVV and MVV22 along supported routes, and specify MVV32 or MVV42 for inclined or vertical shafts so the wire armour can be sized to the suspended length.

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: MVV 0.6/1 kV 3-core 3x1.5 to 3x300, MVV22 0.6/1 kV 3-core 3x2.5 to 3x300, MVV 1.8/3 kV 3-core 3x10 to 3x300, MVV22 1.8/3 kV 3-core 3x10 to 3x300, MVV 0.6/1 kV 3+1 core 3x4+1x2.5 to 3x300+1x150, MVV22 0.6/1 kV 3+1 core 3x4+1x2.5 to 3x300+1x150, MVV 1.8/3 kV 3+1 core 3x10+1x6 to 3x300+1x150, MVV22 1.8/3 kV 3+1 core 3x10+1x6 to 3x300+1x150, MVV 0.6/1 kV 4-core 4x4 to 4x185, MVV22 0.6/1 kV 4-core 4x4 to 4x185, MVV 1.8/3 kV 4-core 4x4 to 4x185, MVV22 1.8/3 kV 4-core 4x4 to 4x185.

MVV Standards & Test References (MT/T 818.12, KA/T 818.12, MT/T 386)

Certifications and document support

TEBAOFLEX company certificates and quality system documentation

National Public Service Platform for Standards Information (SAMR, China) — GB/T and coal-industry standard records