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Product

PN-G-90006 Polish Underground Mining Power & Control Cables (YnOGY / YKGY / YHKGY)PN-G-90006 · YHKGYyn0.6/1 kV & 3.6/6 kV · H-ScreenedUnarmoured Double-Sheathed FR-PVC (yn)

YHKGYyn CablePN-G-90006 0.6/1 kV & 3.6/6 kV PVC (Y), electrostatic-screened (H), Cu (G), FR-PVC (yn)

YHKGYyn Cable is a Polish-standard (PN-G-90006) unarmoured electrostatic-screened ('H') underground mining power cable rated for 0.6/1 kV and 3.6/6 kV networks, combining flexible Class 5/2 copper conductors ('G'), PVC core insulation ('Y')

Flame-retardant
EMC screen
Oil-resistant
Water-resistant
Order designation
YHKGYyn 4 × 25 mm² 0.6/1 kV
Outer Ø ≈
28.6 mm
Copper weight
995 kg/km
Total weight ≈
1,580 kg/km
Min. bend R (fixed)
286 mm
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standard
PN-G-90006
Polish underground mining specification
Designation
YHKGYyn
H = electrostatic / semi-conductive
Voltage ratings
0.6/1 kV &
LV & MV underground mining power
Conductor
Class 5 / 2
PN-EN 60228 stranded copper ('G')
Screen system
H Electrostatic
Eliminates surface static & field stress
Outer sheath
yn Mining FR-PVC
Self-extinguishing high-LOI PVC

Typical values for this cable type, based on PN-G-90006 / ZN-TF (YHKGYyn 0.6/1 kV & 3.6/6 kV H-Screened Mining Cable) — confirmed in the datasheet and quotation for your order.

Application fit

Is YHKGYyn right for your machine?

Engineered for underground coal and copper mine galleries, transformer bays, and overhead messenger-wire suspensions where electrostatic/field screening ('H') is required without the weight of

Fixed installation

Suitable

Unarmoured double-sheathed design hangs cleanly on insulated roadway hooks and routes easily into MV/LV switchgear.

Switchgear & control cabinet wiring

Suitable

Electrostatic 'H' screen equalizes radial dielectric stress on 3.6/6 kV and 0.6/1 kV mining feeders.

Immersion & wet locations

Suitable

Dual extruded PVC sheaths (Y inner + yn outer) protect the screened core assembly against mine moisture.

Energy chain / drag chain

Not suitable

Fixed/semi-fixed underground gallery power cable.

YHKGYekyn
Typical machinesMethane-hazardous (Group I) underground coal galleries3.6/6 kV & 0.6/1 kV underground substationsCopper & salt mine overhead cable hangersFlameproof transformer & motor interconnections

Construction

Layer by layer

Multi-wire stranded copper conductors (PN-EN 60228 Class 5 or Class 2, 10 to 150 mm²), PVC insulation ('Y'), semi-conductive/electrostatic

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Multi-wire stranded copper conductor (G)Flexible Class 5 (or Class 2) annealed copper per PN-EN 60228PN-G-90006 / PN-EN 60228
2PVC core insulation (Y)Insulating polyvinyl chloride (PVC) compoundPN-G-90006
3Electrostatic / semi-conductive screenSemi-conductive electrostatic screen layer (H) with copper continuity tape/wiresPN-G-90006
4Extruded PVC inner sheath (Y)Pressure-extruded PVC inner sheathPN-G-90006
5Flame-retardant mining PVC outerSelf-extinguishing, oil-resistant mining PVC compound (yn)PN-G-90006 / PN-EN 60332-1-2

YHKGYyn 0.6/1 kV (3×10 to 4×120 mm²)

Electrostatic-screened 0.6/1 kV unarmoured underground gallery power cable.

YHKGYyn 3.6/6 kV (3×16 to 3×150 mm²)

Medium-voltage 3.6/6 kV H-screened unarmoured substation and gallery jumper cable.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on PN-G-90006 / ZN-TF (YHKGYyn 0.6/1 kV & 3.6/6 kV H-Screened Mining Cable). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U
0.6/1 kV AC & 3.6/6 kV AC
AC dielectric test voltage
3.5 kV AC (0.6/1 kV) · 11 kV AC (3.6/6 kV)
Max. conductor operating temp.
+70 °C continuous · +160 °C short-circuit
Electrostatic screening
H-type semi-conductive/metallic screen per

Thermal

Operating temperature range
-25 °C to +70 °C (fixed installation)
Minimum installation temp.
-5 °C

Mechanical

Min. bending radius
10 × overall diameter (D)
Sheath construction
Unarmoured double-sheathed (Y inner + yn

Resistance

Flame retardance
PN-EN 60332-1-2 & PN-G-04035 mining flame
Mine water & oil resistance
Resistant to acidic/saline mine water and

Reference standards

Primary specification
PN-G-90006 · ZN-TF / WUG underground mining
Conductor standard
PN-EN 60228

Identification

Core identification
HD 308 S2 colour code or numbered phase cores
Outer sheath colour
Black (0.6/1 kV) or Red/Yellow (3.6/6 kV)

Sizes

6 standard configurations (YHKGYyn)

Nominal dimensions, copper weights, DC resistance and current ratings for YHKGYyn per PN-G-90006 / ZN-TF (YHKGYyn 0.6/1 kV & 3.6/6 kV H-Screened Mining Cable).

Dimensions & weights
Order designationCores × SizeMain cross-sectionOuter Ø ≈
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard YHKGYyn configurations
YHKGYyn 4 × 10 mm² 0.6/1 kV4 × 10 mm² (0.6/1 kV)10.0 mm²21.4410820214
YHKGYyn 4 × 25 mm² 0.6/1 kV4 × 25 mm² (0.6/1 kV)25.0 mm²28.69951,580286
YHKGYyn 4 × 50 mm² 0.6/1 kV4 × 50 mm² (0.6/1 kV)50.0 mm²36.81,9702,790368
YHKGYyn 3 × 25 mm² 3.6/6 kV3 × 25 mm² (3.6/6 kV)25.0 mm²33.28101,790332
YHKGYyn 3 × 50 mm² 3.6/6 kV3 × 50 mm² (3.6/6 kV)50.0 mm²39.81,5602,840398
YHKGYyn 3 × 95 mm² 3.6/6 kV3 × 95 mm² (3.6/6 kV)95.0 mm²48.62,9104,620486
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Outer diameters and weights are nominal factory values subject to ±5 % manufacturing tolerance per PN-G-90006 / ZN-TF (YHKGYyn 0.6/1 kV & 3.6/6 kV H-Screened Mining Cable).

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
3.5 kV / 11 kV AC dielectric voltage test5 minutes AC withstand per PN-G-90006100 % of drums
Conductor DC resistance & H-screen continuityPN-EN 60228 & electrostatic screen check100 % of drums
Sample tests
yn sheath oxygen index (LOI) & wall checkSelf-extinguishing mining PVC verificationPer production batch
PN-EN 60332-1-2 & PN-G-04035 mining flame testPass Polish underground mining fire propagation testWUG / type approval

Inspection certificate

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

Product approvals

PN-G-90006PN-EN 60332-1-2CE / WUG Compliant

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX YHKGYyn 0.6/1KV / 3.6/6KV
Delivery form
Non-returnable timber drums or heavy export
Standard drum lengths
250 m · 500 m · 1000 m · custom cut lengths
MOQ
100 m (stock variants) · 500 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFYHKGYyn Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSXYHKGYyn spec data (Excel)All 6 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.

What does the letter 'H' signify in YHKGYyn?
Derived from the classic Höchstädter ('H') electrostatic screen notation adopted in Polish PN-G-90006 standards, 'H' denotes a semi-conductive/electrostatic screen layer over the insulated cores that radializes the electric field and prevents electrostatic charge accumulation. Each production drum undergoes 100 % conductor DC resistance verification,
How does YHKGYyn differ from YHKGYekyn?
YHKGYyn contains the 'H' electrostatic screen layer, whereas YHKGYekyn adds a full-rated concentric copper wire and copper tape fault screen ('ek') capable of carrying higher phase-to-earth short-circuit currents in 3.6/6 kV and 6/10 kV networks. Each production drum undergoes 100 % conductor DC resistance
When is unarmoured YHKGYyn used instead of armoured YHKGYFtZnyn or YHKGYFoyn?
YHKGYyn is used inside underground transformer chambers, switchgear bays, and protected overhead roadway hook runs where lower weight and tighter bending into flameproof terminal boxes are needed. Each production drum undergoes 100 % conductor DC resistance verification, insulation thickness gauging, and high-voltage AC or
Is YHKGYyn available for both 0.6/1 kV and 3.6/6 kV systems?
Yes. YHKGYyn is manufactured in both 0.6/1 kV low-voltage and 3.6/6 kV medium-voltage insulation thicknesses according to PN-G-90006. Each production drum undergoes 100 % conductor DC resistance verification, insulation thickness gauging, and high-voltage AC or DC dielectric testing before release with an EN 10204

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YHKGYyn Cable

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