Mar. 06, 2026
If your operation uses medium-voltage mobile equipment — long-haul feeders, shuttle cars, draglines or mobile crushers — you already know the difference a properly specified cable makes. The MYP 1.1/1.9kV mining cable family exists to bring medium-voltage power to movable mining machinery while surviving abrasion, reeling, moisture and mechanical abuse. This article explains exactly what an MYP 1.1/1.9kV mining cable is, why it’s chosen, how to read datasheets, which measurable tests to demand, and how to install and maintain it so it becomes a reliability asset — not a recurring failure.
(Core phrase appears naturally throughout to match buyer search intent.)
“MYP” is a common designation for a family of rubber-sheathed, flexible mining cables designed for movable power connection. The numeric rating “1.1/1.9kV” indicates the cable’s nominal voltage class (phase-to-earth / phase-to-phase), placing it in the medium-voltage category used for larger motors and proven mobile feeders in many mine fleets.
A true MYP 1.1/1.9kV mining cable is more than a thicker conductor: it’s an engineered assembly combining:
fine-stranded copper conductors sized for the load,
robust elastomeric insulation (EPR/HEPR or similar) rated for medium voltage,
optional metallic screening or braid for fault protection and monitoring, and
a heavy duty jacket (CPE, neoprene, or specially compounded thermoset) formulated for abrasion, oil exposure and low water uptake.
This construction lets the cable deliver power safely while handling the mechanical realities of mobile equipment.
Correct voltage class for mobile medium-power equipment. Many mobile conveyors, crushers and medium-size motors need more than low-voltage leads but still require flexibility for movement — 1.1/1.9kV is the right balance.
Flexibility with mechanical protection. The MYP construction provides great flexibility (fine stranded conductors) while offering heavy outer jackets that resist cuts, abrasion and impact.
Traceable safety and testability. Reputable MYP cables are delivered with per-reel electrical and mechanical test certificates — essential for mine QA. (See mining catalogues for typical product tables.)
Designed for reeling and trailing. MYP variants include options optimized for being reeled on drums or dragged along mechanised routes, with spooling test evidence at recommended drum diameters.
When you read a product sheet for an MYP 1.1/1.9kV mining cable, compare these fields:
Rated voltage: 1.1/1.9 kV (confirm U₀/U notation).
Conductor: stranded copper (specify mm² and strand count / flex class). Higher strand counts improve flex fatigue life.
Insulation: EPR / HEPR or specified medium-voltage elastomer; insulation thickness per core is critical for dielectric performance.
Screen / armor: metallic screen (tinned copper braid or concentric conductors) and optional armor for mechanical protection.
Bedding & fillers: often include bedding that preserves roundness and distributes impact loads.
Outer sheath: compound (CPE, neoprene, TPU blends) with numeric properties for abrasion, oil resistance and water uptake.
Mechanical specs: minimum bend radius, recommended drum diameter for reeling, tensile and tear strength.
Certificates: per-reel insulation resistance, DC conductor resistance, dielectric (hipot) and mechanical test reports.
Manufacturers’ mining catalogues and datasheets commonly present these fields — require them in your RFQ.
Mobile crusher and screen power leads. Medium-voltage feeders for mobile crushing trains benefit from the MYP 1.1/1.9kV construction because it carries higher power yet remains mobile.
Long mobile conveyor motors. When conveyors are modular or mobile, MYP 1.1/1.9kV cables supply head motors and drive packs with fewer voltage drops and fewer terminations.
Shuttle cars and loaders (medium power). Equipment that must be plugged in and moved needs flex life and robust jacketing.
Dredge and floating plant feeders. Where medium voltage is routed on floating platforms, water resistance plus medium-voltage rating matters.
Field substations and portable switchrooms. Short flexible jumps between portable substations and mobile loads use medium-voltage flexible lines.
Demand numeric evidence — not marketing copy. For any MYP 1.1/1.9kV mining cable RFQ include:
Rated voltage and core configuration (U₀/U = 1.1/1.9 kV).
Conductor size & strand count (mm² and exact strands per conductor).
Insulation material & thickness (material datasheet + dielectric strength).
Screen/armor details (type, coverage % and material).
Outer jacket compound name + MSDS and minimum thickness.
Minimum bend radius & recommended drum diameter for intended reeling.
Spooling/flex test report — cycles-to-failure at the specified drum diameter.
Abrasion, tear and puncture test numbers (Taber or equivalent).
Water-ingress / hydrostatic test data if cable will see wet service.
Per-reel test certificates: insulation resistance (MΩ), hipot result (kV), conductor DC resistance (Ω/km), and mechanical test summaries tied to the reel lot.
Termination kit and gland recommendations compatible with jacket chemistry.
Lead time, MOQ and warranty tied to measurable acceptance tests.
Insist that test certificates reference the reel lot number printed on the drum — that is how field failures get traced and corrected.
Even the best MYP 1.1/1.9kV mining cable requires correct handling:
Respect minimum bend radius — this prevents internal insulation creep and conductor strand stress.
Follow the manufacturer’s recommended drum diameter on reeling/unreeling; small drums accelerate flex fatigue.
Use smooth rollers and edge guards where cable contacts equipment frames.
Apply sacrificial sleeves at predictable wear points — cheap and effective.
Seal terminations with manufacturer-approved glands and boots; many immersion or humidity problems start at poor terminations.
Record reel lot numbers at installation for traceability and trend analysis.
Before energising, perform these tests and keep the paperwork with the installation record:
Inspect markings and print on the drum — part number + lot must match certificates.
Insulation resistance test (measured > vendor spec) on a sample length.
Hipot / dielectric test at the specified voltage per the datasheet.
Conductor DC resistance spot-check against datasheet.
If applicable, a short spool/flex trial — unspool and re-spool a short length to verify no immediate mechanical faults.
Don’t accept reels without matching per-reel certificates — that’s the single highest-value check you can make.
Plan predictable maintenance:
Daily visual inspections at exposed runs and wear points.
Weekly checks of termination seals and gland integrity.
Monthly insulation resistance trending to detect moisture ingress early.
Record flex/reel cycles and retire reels before predicted end-of-life per vendor flex data.
Store spare reels of the same lot for critical systems to avoid performance surprises.
A data-driven replacement plan saves far more than reactive repairs.
MYP and related medium-voltage mining cables are documented in mining catalogues and standards — look to recognised mining cable families and manufacturer datasheets when comparing offers. Major supplier catalogues and mining technical guides provide the datasheet structure you should mirror in your RFQ.
When you evaluate vendors, prioritise those who publish full datasheets and per-reel test certificate workflows rather than retailers who only list part names.
(Examples of suppliers and technical catalogues you’ll find on the first page include major mining catalogue publishers and specialist cable makers.)
U₀/U = 1.1/1.9 kV (confirm notation)
conductor mm² & strand count (explicit)
insulation type & thickness + dielectric rating
screen/armor type and coverage %
jacket compound + MSDS + min thickness
min bend radius & recommended drum diameter
flex/spooling cycles @ specified drum diameter (report)
abrasion/tear/puncture numeric tests
water/hydrostatic test results if wet duty expected
per-reel certificates tied to reel lot labels
recommended termination kits & spare parts policy
Use this as your RFQ payload — it forces technical parity between bids.
Selecting the right MYP 1.1/1.9kV mining cable means more than picking a medium-voltage product family — it means matching conductor, insulation, screening and jacket to the mechanical and environmental reality of your mine, and insisting on per-reel test evidence and correct handling. Do that and you’ll cut emergency repairs, extend mean time between replacements, and protect production and people.
