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Product

PN-G-90006 PVC ek+FtZn mining cablePN-G-90006 / PN-93/E-904013.6/6 & 6/10 kV · PVC (Y) +70 °CCu Screen (ek) + FtZn Armour

YHKGYekFtZnyn CablePolish 3.6/6 & 6/10 kV PVC-insulated (Y) copper-screened (ek) FtZn armoured mining cable

Traditional Polish underground mining medium-voltage power cable (YHKGYekFtZnyn) built to PN-G-90006 and PN-93/E-90401 with +70 °C special dielectric PVC (Y) core insulation, individual copper phase screens (ek), galvanized flat steel tape armour (FtZn).

EMC screen
Flame-retardant
Oil-resistant
Approved
Order designation
YHKGYekFtZnyn 3×95/16 3.6/6kV
Outer Ø ≈
54.8 mm
Copper weight
2,740 kg/km
Total weight ≈
5,890 kg/km
Ampacity (air)
234 A
All sizes (11)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Rated voltage
3.6/6 & 6/10 kV
Umax = 7.2 kV & 12 kV
Insulation (Y)
MV-grade PVC
+70 °C continuous · +160 °C SC
Phase screen
Copper (ek)
semicon tape + Cu phase screen
Armour (FtZn)
Galv. steel tape
2 × galvanized flat steel tapes
Outer sheath
PVC-yn (Red)
oxygen index OI ≥ 29 %
Max. incline
Up to 45°
horizontal & inclined roadways

Typical values for this cable type, based on PN-G-90006 / PN-93/E-90401 / IEC 60502-2 — confirmed in the datasheet and quotation for your order.

Application fit

Is YHKGYekFtZnyn right for your machine?

Engineered for existing 3.6/6 kV and 6/10 kV Polish underground coal, copper and salt mine networks standardized on PVC-insulated ('Y') couplers, cold-shrink/resin joints and relay settings.

Mine roadway & tunnel wall hangers

Suitable

Directly compatible with legacy YHKGYekFtZnyn 3.6/6 kV and 6/10 kV underground roadway networks.

TBM gantry & advancing tunnel reel

Suitable

Double galvanized flat steel tape armour (FtZn) resists rockfall and haulage impact in drifts up to 45°.

Fixed installation

Suitable

Inherent flame retardance across both the PVC core insulation (Y) and PVC outer sheath (yn).

Typical machinesExisting 6 kV & 10 kV Polish Coal MinesUnderground Salt, Gypsum & Zinc-Lead MinesMining Substation Extensions & RepairsIndustrial Tunnel Power Distribution

Construction

Layer by layer

Shown: YHKGYekFtZnyn 3×95/16 mm² 6/10 kV with Class 2 compacted copper conductors, semiconductive conductor screen, MV dielectric PVC (Y) insulation, semiconductive + copper phase screen (ek), PVC bedding, galvanized flat steel tape armour (FtZn) and red yn PVC outer sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Compacted stranded bare copper (RMC)IEC 60228 Class 2 circular compacted copper (25 to 150 mm²)Smooth conductor geometry for MV insulation
2Medium-voltage dielectric PVC compound (Y)High-insulation-resistance MV PVC (3.4 mm wall at 3.6/6 kV; 4.0 mm wall at 6/10 kV) withSelf-extinguishing chlorine-bearing dielectric that matches legacy mine jointing kits
3Individual phase copper screen (ek)Concentric copper tapes/wires over each phase core (16 or 25 mm² total)Confines electric field and guarantees fast earth-fault clearance
4Galvanized flat steel tape armour (FtZn) over PVCExtruded PVC inner covering + 2 × overlapping galvanized flat steel tapesHeavy radial mechanical protection
5Flame-retardant mining PVC outer sheath (yn)Self-extinguishing red PVC compound (Oxygen Index ≥ 29 %)IEC 60332-3-22 Cat A bunched flame retardant

YHKGYekFtZnyn (PVC Insulation +70 °C)

MV-grade PVC insulation (Y) for exact dimensional compatibility with legacy 6 kV/10 kV mine joints

YHKGXSekFtZnyn (XLPE Insulation +90 °C)

Upgraded XLPE-insulated (XS) version with +90 °C rating and smaller core diameter

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on PN-G-90006 / PN-93/E-90401 / IEC 60502-2. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage (U₀/U)
3.6/6 kV (Umax = 7.2 kV) & 6/10 kV (Umax = 12 kV)
50 Hz AC test voltage (5 min)
11 kV AC (3.6/6 kV) · 15 kV AC (6/10 kV)
Max. conductor DC resistance @ 20 °C
0.727 Ω/km (25 mm²) to 0.124 Ω/km (150 mm²)

Thermal

Max. conductor operating temperature
+70 °C continuous · +160 °C short-circuit (max. 5 s)
Ambient temperature range
−25 °C to +60 °C (fixed) · 0 °C to +50 °C (installation)

Mechanical

Armour construction (FtZn)
2 × hot-dip galvanized flat steel tapes over PVC bedding
Max. roadway inclination
Up to 45° slope
Minimum bending radius
15 × OD (fixed installation)

Resistance

Flame retardance
PN-EN 60332-1-2 & PN-EN 60332-3-22 Cat A (both core & sheath PVC)
Chemical & water resistance
Resistant to saline mine water, acids and mineral oils

Reference standards

Governing standards
PN-G-90006, PN-93/E-90401 & IEC 60502-2
Methane hazard compliance
Approved for WUG methane hazard degrees 'a', 'b' and 'c'

Identification

Polish code breakdown
YHKG + Y (MV PVC insulation) + ek (Cu screen) + FtZn + yn (FR-PVC)
Outer sheath colour
Red (MV underground mining identification)
Customs tariff (HS)
8544.60

Sizes

11 standard YHKGYekFtZnyn 3.6/6 kV & 6/10 kV PVC mining cable sizes

3-core MV-PVC insulated (Y), copper-screened (ek), galvanized flat-steel-tape armoured (FtZn) mining cables.

Dimensions, weights & ampacity
Order designationPhase / ScreenVoltageOuter Ø ≈
mm		Copper
kg/km		Weight ≈
kg/km		In air 25 °C
A		Min. bend R
mm		Enquiry
3.6/6 kV PVC Screened & Tape-Armoured Mining Cables (YHKGYekFtZnyn)
YHKGYekFtZnyn 3×25/16 3.6/6kV3×25 / 16 mm²3.6/6 kV40.58302,780108608
YHKGYekFtZnyn 3×35/16 3.6/6kV3×35 / 16 mm²3.6/6 kV43.21,1003,260130648
YHKGYekFtZnyn 3×50/16 3.6/6kV3×50 / 16 mm²3.6/6 kV46.51,5103,940158698
YHKGYekFtZnyn 3×70/16 3.6/6kV3×70 / 16 mm²3.6/6 kV50.42,0604,820195756
YHKGYekFtZnyn 3×95/16 3.6/6kV3×95 / 16 mm²3.6/6 kV54.82,7405,890234822
YHKGYekFtZnyn 3×120/16 3.6/6kV3×120 / 16 mm²3.6/6 kV58.23,4206,860270873
YHKGYekFtZnyn 3×150/25 3.6/6kV3×150 / 25 mm²3.6/6 kV62.04,3308,040308930
6/10 kV PVC Screened & Tape-Armoured Mining Cables (YHKGYekFtZnyn)
YHKGYekFtZnyn 3×50/16 6/10kV3×50 / 16 mm²6/10 kV50.81,5254,480158762
YHKGYekFtZnyn 3×70/16 6/10kV3×70 / 16 mm²6/10 kV54.62,0755,410195819
YHKGYekFtZnyn 3×95/16 6/10kV3×95 / 16 mm²6/10 kV59.02,7606,510234885
YHKGYekFtZnyn 3×120/16 6/10kV3×120 / 16 mm²6/10 kV62.53,4407,520270938
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Ampacity is based on +70 °C PVC conductor temperature (for +90 °C higher ampacity, see YHKGXSekFtZnyn).

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
11 kV / 15 kV AC 5-minute high-voltage dielectric testZero breakdown across MV PVC insulationEvery drum
Sample tests
IEC 60332-3-22 Cat A vertical bunched flame testPass Category A vertical ladder flame testPeriodic audit

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

PN-G-90006 & PN-93/E-90401 CompliantWUG Methane-Hazard Roadway ApprovedPN-EN 60332-3-22 Cat A Flame Retardant

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX YHKGYekFtZnyn <voltage> <size> PN-G-90006 CE
Delivery form
Non-returnable fumigated wooden or steel drums
Standard lengths
250 m · 500 m · 1000 m standard drums
MOQ
250 m (stock sizes) · 500 m (custom)
Lead time
3–5 weeks ex-works
Incoterms
EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFYHKGYekFtZnyn Cable – technical datasheet11 sizes · construction, technical data, approvalsXLSXYHKGYekFtZnyn spec data (Excel)All 11 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

Why do some mines still specify YHKGYekFtZnyn instead of XLPE-insulated YHKGXSekFtZnyn?
Many established 6 kV underground mining distribution networks use flameproof cast-iron coupler boxes, stuffing glands and resin splice kits sized specifically for the thicker insulation wall (3.4 mm PVC vs 2.5 mm XLPE at 3.6/6 kV) of YHKGYekFtZnyn, and appreciate that PVC core insulation is inherently self-extinguishing.
How much does the ampacity differ between YHKGYekFtZnyn (+70 °C PVC) and YHKGXSekFtZnyn (+90 °C XLPE)?
For the same cross-section (e.g. 3×95 mm² in +25 °C mine air), YHKGYekFtZnyn is rated at ~234 A (+70 °C conductor limit), whereas YHKGXSekFtZnyn is rated at ~288 A (+90 °C conductor limit).
Can YHKGYekFtZnyn be spliced directly to YHKGXSekFtZnyn?
Yes, using transition heat-shrink or cold-shrink MV mining splice kits approved for PVC-to-XLPE phase transitions, provided the circuit breaker thermal overload is set to the +70 °C ampacity of the YHKGYekFtZnyn section.
What factory routine tests and certificates are supplied with YHKGYekFtZnyn?
Every production drum of YHKGYekFtZnyn undergoes 100 % conductor DC resistance measurement at 20 °C, high-voltage AC/DC dielectric withstand testing, and dimensional verification per PN-G-90006 / PN-93/E-90401 / IEC 60502-2, supplied with an EN 10204 3.1 inspection certificate.

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YHKGYekFtZnyn Cable

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Reel & motion:
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