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Product

PN-G-90006 Polish Underground Mining Power & Control Cables (YnOGY / YKGY / YHKGY)PN-G-90006 · YHKGYekyn0.6/1 kV, 3.6/6 kV & 6/10 kVH-Screen + Copper Screen (ek) + yn PVC

YHKGYekyn CablePN-G-90006 0.6/1 kV, 3.6/6 kV & 6/10 kV H-screened + copper-screened (ek) unarmoured

YHKGYekyn Cable is a Polish-standard (PN-G-90006) unarmoured dual-screened ('H' + 'ek') underground mining power cable rated for 0.6/1 kV, 3.6/6 kV, and 6/10 kV networks, combining multi-wire copper conductors ('G'), PVC core insulation ('Y')

Flame-retardant
EMC screen
Low-EMC design
Oil-resistant
Order designation
YHKGYekyn 3 × 50 / 25 mm² 0.6/1 kV
Outer Ø ≈
34.6 mm
Copper weight
1,710 kg/km
Total weight ≈
2,540 kg/km
Min. bend R (fixed)
346 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
YHKGYekyn
H (field screen) + ek (Cu fault screen)
Voltage ratings
1 kV / 6 kV
0.6/1 kV, 3.6/6 kV & 6/10 kV
Conductor
Class 5 / 2
PN-EN 60228 stranded copper ('G')
Copper screen
Cu Wires +
High earth-fault current capacity
Outer sheath
yn Mining FR-PVC
Self-extinguishing high-LOI PVC

Typical values for this cable type, based on PN-G-90006 / ZN-TF (YHKGYekyn 0.6/1 kV, 3.6/6 kV & 6/10 kV Dual-Screened Mining Cable) — confirmed in the datasheet and quotation for your order.

Application fit

Is YHKGYekyn right for your machine?

Engineered for methane-hazardous (Group I) underground coal and copper mine galleries, movable MV/LV transformer substations, and high-power VFD drives requiring both radial field control ('H') and

Fixed installation

Suitable

Unarmoured construction allows easier handling and tighter routing between underground MV/LV switchgear bays and mobile transformer skids.

Switchgear & control cabinet wiring

Suitable

Concentric copper wire/tape screen ('ek') carries full earth-fault current and shields VFD harmonics.

Immersion & wet locations

Suitable

Inner PVC bedding and outer 'yn' flame-retardant mining PVC sheath protect the copper screen against mine water.

Energy chain / drag chain

Not suitable

Fixed and semi-mobile underground gallery power cable.

YnOGYekm
Typical machinesMethane-hazardous underground coal roadwaysMovable 6 kV / 10 kV district substationsUnderground copper & salt mine MV/LV feedersHigh-power underground VFD pump & fan drives

Construction

Layer by layer

Multi-wire stranded copper conductors (PN-EN 60228 Class 5 or Class 2, 10 to 185 mm²), conductor and core semi-conductive screens ('H')

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 insulation (Y) with H semi-conSpecial insulating PVC compound with semi-conductive electrostatic screen layers (H)PN-G-90006
3Inner PVC beddingExtruded PVC inner filler sheathPN-G-90006
4Concentric copper wire & tape screenHelically applied annealed copper wires bound with a counter-helical copper equalizingPN-G-90006
5Flame-retardant mining PVC outerSelf-extinguishing, oil-resistant mining PVC compound (yn)PN-G-90006 / PN-EN 60332-1-2

YHKGYekyn 0.6/1 kV (3×16+ek to 4×120+ek mm²)

Low-voltage dual-screened flexible mining power cable for gassy galleries and VFD drives.

YHKGYekyn 3.6/6 kV & 6/10 kV (3×25+ek to 3×185+ek mm²)

Medium-voltage unarmoured copper-screened feeder for movable underground transformer stations.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on PN-G-90006 / ZN-TF (YHKGYekyn 0.6/1 kV, 3.6/6 kV & 6/10 kV Dual-Screened Mining Cable). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U
0.6/1 kV · 3.6/6 kV · 6/10 kV AC
AC dielectric test voltage
3.5 kV (1 kV) · 11 kV (6 kV) · 17 kV (10
Max. conductor operating temp.
+70 °C continuous · +160 °C short-circuit
Copper screen ('ek') cross-section
16 mm², 25 mm², 35 mm², or 50 mm² per

Thermal

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

Mechanical

Min. bending radius
10 × D (0.6/1 kV) · 12 × D (3.6/6 kV & 6/10
Construction
Unarmoured dual-screened ('H' + 'ek') for

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
Numbered phase cores or HD 308 S2 colour code
Outer sheath colour
Red (3.6/6 kV & 6/10 kV MV) or Black/Yellow

Sizes

6 standard configurations (YHKGYekyn)

Nominal dimensions, copper weights, DC resistance and current ratings for YHKGYekyn per PN-G-90006 / ZN-TF (YHKGYekyn 0.6/1 kV, 3.6/6 kV & 6/10 kV

Dimensions & weights
Order designationCores × SizeMain cross-sectionOuter Ø ≈
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard YHKGYekyn configurations
YHKGYekyn 3 × 25 / 16 mm² 0.6/1 kV3 × 25 + 16 ek (1 kV)25.0 mm²27.88901,520278
YHKGYekyn 3 × 50 / 25 mm² 0.6/1 kV3 × 50 + 25 ek (1 kV)50.0 mm²34.61,7102,540346
YHKGYekyn 3 × 35 / 16 mm² 3.6/6 kV3 × 35 + 16 ek (6 kV)35.0 mm²37.41,1902,380374
YHKGYekyn 3 × 70 / 25 mm² 3.6/6 kV3 × 70 + 25 ek (6 kV)70.0 mm²44.82,3103,760448
YHKGYekyn 3 × 95 / 35 mm² 6/10 kV3 × 95 + 35 ek (10 kV)95.0 mm²52.63,1805,120526
YHKGYekyn 3 × 150 / 50 mm² 6/10 kV3 × 150 + 50 ek (10 kV)150.0 mm²60.84,9507,280608
  • 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 (YHKGYekyn 0.6/1 kV, 3.6/6 kV & 6/10 kV Dual-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 / 17 kV AC dielectric test5 minutes AC withstand core-to-screen per PN-G-90006100 % of drums
Phase & 'ek' copper screen DC resistancePN-EN 60228 & copper fault screen conductance check100 % of drums
Sample tests
Partial discharge & yn sheath LOI testMV dielectric integrity & self-extinguishing PVC checkPer 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 YHKGYekyn 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

PDFYHKGYekyn Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSXYHKGYekyn 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.

Why does YHKGYekyn combine both 'H' and 'ek' screening?
The inner 'H' semi-conductive/electrostatic screen smooths the radial electric field around each insulated phase conductor, while the outer 'ek' concentric copper wire and copper tape screen provides a low-resistance metallic path for earth-fault currents and sensitive leakage protection. Each production drum undergoes 100 %
Why is YHKGYekyn widely used to feed movable underground 6 kV transformer stations?
As longwall or room-and-pillar mining faces advance, the 6 kV district transformer skid is periodically moved forward. Because YHKGYekyn uses multi-wire 'G' copper conductors and replaces heavy steel armour with a concentric copper screen ('ek'), it can be coiled and re-hung along roadway hooks much more easily than steel-armoured cables.
How is the copper screen cross-section specified when ordering YHKGYekyn?
YHKGYekyn is designated with the screen cross-section after a slash — for example, 'YHKGYekyn 3×70/25 mm² 3.6/6 kV' indicates three 70 mm² phase conductors and a 25 mm² concentric copper screen ('ek'). Each production drum undergoes 100 % conductor DC resistance verification, insulation thickness
What if my roadway requires mechanical steel armour in addition to screening?
For horizontal roadways exposed to rock crush, specify galvanized steel-tape armoured YHKGYFtZnyn; for vertical shafts and inclined drifts, specify galvanized round-steel-wire armoured YHKGYFoyn. Each production drum undergoes 100 % conductor DC resistance verification, insulation thickness gauging, and high-voltage AC or DC dielectric testing before

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YHKGYekyn Cable

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