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PN-G-90006 Polish Underground Mining Power & Control Cables (YnOGY / YKGY / YHKGY)PN-G-90006 · YHKGYFtZnyn0.6/1 kV, 3.6/6 kV & 6/10 kVH-Screened + Galv. Steel-Tape (FtZn)

YHKGYFtZnyn CablePN-G-90006 0.6/1 kV, 3.6/6 kV & 6/10 kV H-screened, galvanized steel-tape armoured

YHKGYFtZnyn Cable is a Polish-standard (PN-G-90006) electrostatic-screened ('H') and galvanized flat steel-tape armoured ('FtZn') underground mining roadway power cable rated for 0.6/1 kV, 3.6/6 kV, and 6/10 kV networks, combining multi-wire copper

Flame-retardant

EMC screen

Oil-resistant

Water-resistant

Cores × Size

Order designation: YHKGYFtZnyn 4 × 70 mm² 0.6/1 kV
Outer Ø ≈: 44.0 mm
Copper weight: 2,760 kg/km
Total weight ≈: 4,380 kg/km
Min. bend R (fixed): 528 mm

All sizes (6)

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Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Standard: PN-G-90006
Designation: YHKGYFtZnyn
Voltage ratings: 1 kV / 6 kV
Conductor: Class 5 / 2
Armouring: Double Galv.
Outer sheath: yn Mining FR-PVC

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

Application fit

Is YHKGYFtZnyn right for your machine?

Engineered for horizontal underground coal, copper, and salt mine trunk roadways, pit-bottom HV/LV switchrooms, and direct-buried surface colliery feeders requiring both radial electric field

Fixed installation

Suitable

Double galvanized steel tapes ('FtZn') protect screened 1 kV, 6 kV, and 10 kV cores against falling rock in horizontal mine drifts.

Switchgear & control cabinet wiring

Suitable

Internal 'H' electrostatic screen with copper tape/wire continuity ensures radial field control and instantaneous earth-fault detection.

Immersion & wet locations

Suitable

Hot-dip zinc galvanizing ('Zn') and dual extruded PVC sheaths withstand corrosive mine water.

Energy chain / drag chain

Not suitable

Fixed horizontal armoured mining roadway trunk cable.

YHKGYFoyn

Typical machinesHorizontal underground 6 kV / 10 kV trunk roadwaysMethane-hazardous (Group I) coal mine distributionCopper & salt mine underground HV/LV substationsSurface-to-pit-bottom horizontal drift feeders

Construction

Layer by layer

Multi-wire stranded copper conductors (PN-EN 60228 Class 5 or Class 2, 10 to 185 mm²), PVC insulation ('Y'), semi-conductive/electrostatic

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Multi-wire stranded copper conductor (G)	Flexible Class 5 (or Class 2) annealed copper per PN-EN 60228PN-G-90006 / PN-EN 60228
2	PVC insulation (Y) with H semi-con	Insulating PVC compound with semi-conductive/electrostatic screen (H) and copperPN-G-90006
3	Extruded PVC inner bedding (Y)	Pressure-extruded PVC inner sheath cushioning the steel tapesPN-G-90006
4	Galvanized steel tape armour (FtZn)	Two helically applied hot-dip galvanized flat steel tapes (FtZn)PN-G-90006
5	Flame-retardant mining PVC outer	Self-extinguishing, oil-resistant mining PVC compound (yn)PN-G-90006 / PN-EN 60332-1-2

YHKGYFtZnyn 0.6/1 kV (3×16 to 4×150 mm²)

Screened steel-tape armoured 0.6/1 kV horizontal roadway feeder for gassy underground galleries.

YHKGYFtZnyn 3.6/6 kV & 6/10 kV (3×25 to 3×185 mm²)

Screened steel-tape armoured MV trunk feeder for horizontal underground 6 kV and 10 kV roadways.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on PN-G-90006 / ZN-TF (YHKGYFtZnyn 0.6/1 kV to 6/10 kV Screened Steel-Tape Armoured 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
Screening system: 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: 12 × overall diameter (D) for screened FtZn
Armour type: Double hot-dip galvanized flat steel tape

Resistance

Flame retardance: PN-EN 60332-1-2 & PN-G-04035 mining flame
Corrosion & crush resistance: Zinc-galvanized steel tapes ('FtZn') + dual

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 (0.6/1

Sizes

6 standard configurations (YHKGYFtZnyn)

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

Dimensions & weights
Order designation	Cores × Size	Main cross-section	Outer Ø ≈ mm	Copper kg/km	Weight ≈ kg/km	Min. bend R fixed mm
Standard YHKGYFtZnyn configurations
YHKGYFtZnyn 4 × 25 mm² 0.6/1 kV	4 × 25 mm² (0.6/1 kV)	25.0 mm²	31.2	1,010	2,080	374
YHKGYFtZnyn 4 × 70 mm² 0.6/1 kV	4 × 70 mm² (0.6/1 kV)	70.0 mm²	44.0	2,760	4,380	528
YHKGYFtZnyn 3 × 35 mm² 3.6/6 kV	3 × 35 mm² (3.6/6 kV)	35.0 mm²	38.6	1,120	2,740	463
YHKGYFtZnyn 3 × 70 mm² 3.6/6 kV	3 × 70 mm² (3.6/6 kV)	70.0 mm²	46.2	2,190	4,290	554
YHKGYFtZnyn 3 × 120 mm² 3.6/6 kV	3 × 120 mm² (3.6/6 kV)	120.0 mm²	55.4	3,690	6,480	665
YHKGYFtZnyn 3 × 150 mm² 6/10 kV	3 × 150 mm² (6/10 kV)	150.0 mm²	63.2	4,620	8,190	758

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 (YHKGYFtZnyn 0.6/1 kV to 6/10 kV Screened Steel-Tape Armoured Mining Cable).

Electrical & ampacity
Configuration	Max. DC R @ 20 °C Ω/km	Iz free air A	Iz tray / duct A	Isc (1 s) kA	Voltage drop mV/A/m	Dielectric test V
4 × 25 mm² (0.6/1 kV)	0.78	102	92	2.88	1.72	3,500
4 × 70 mm² (0.6/1 kV)	0.27	195	176	8.05	0.62	3,500
3 × 35 mm² (3.6/6 kV)	0.55	135	122	4.03	1.22	11,000
3 × 70 mm² (3.6/6 kV)	0.27	202	182	8.05	0.60	11,000
3 × 120 mm² (3.6/6 kV)	0.16	280	252	13.80	0.36	11,000
3 × 150 mm² (6/10 kV)	0.13	318	286	17.25	0.29	17,000

Conductor DC resistance at +20 °C per IEC 60228 and reference current ratings at 30 °C ambient per PN-G-90006 / ZN-TF (YHKGYFtZnyn 0.6/1 kV to 6/10 kV Screened Steel-Tape Armoured 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.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
3.5 kV / 11 kV / 17 kV AC dielectric test	5 minutes AC withstand per PN-G-90006	100 % of drums
Conductor DC resistance & H-screen/FtZn check	PN-EN 60228 resistance & screen/armour continuity	100 % of drums
Sample tests
Galvanized steel tape zinc coat & yn LOI	Hot-dip zinc adherence & self-extinguishing PVC check	Per production batch
PN-EN 60332-1-2 & PN-G-04035 mining flame test	Pass Polish underground mining fire propagation test	WUG / 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 YHKGYFtZnyn 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

PDFYHKGYFtZnyn Cable – technical datasheet6 sizes · construction, technical data, approvals XLSXYHKGYFtZnyn 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.

How does YHKGYFtZnyn differ from YKGYFtZnyn?

Both use galvanized flat steel tape armour ('FtZn') and a flame-retardant mining PVC outer sheath ('yn'). YHKGYFtZnyn adds the 'H' semi-conductive/electrostatic screen system over the insulated cores, enabling 3.6/6 kV and 6/10 kV medium-voltage operation as well as screened 0.6/1 kV operation in methane-hazardous coal roadways.

When should I specify YHKGYFtZnyn instead of YHKGYFoyn?

Specify YHKGYFtZnyn for horizontal galleries, level cross-cuts, and substation rooms where the cable is supported on horizontal brackets or trays and does not experience longitudinal tension. For vertical shafts or inclined drifts (> 15°–45°), specify round-steel-wire armoured YHKGYFoyn. Each production drum undergoes 100 %

Does YHKGYFtZnyn use Class 5 flexible or Class 2 stranded copper conductors?

Under PN-G-90006, the 'G' designation indicates multi-wire flexible/stranded copper conductors (Class 5 on smaller and medium cross-sections, or compacted multi-wire Class 2/5 on large MV cross-sections), making the cable substantially easier to bend in tight underground galleries than solid-conductor utility cables. Each production drum

Why is the outer sheath of 3.6/6 kV and 6/10 kV YHKGYFtZnyn coloured Red?

Polish mining regulations (WUG / PN-G-90006) use a Red outer 'yn' sheath to provide immediate visual identification of medium-voltage (6 kV and 10 kV) cables hung alongside Black or Yellow 0.6/1 kV low-voltage cables. Each production drum undergoes 100 % conductor DC resistance verification,

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YHKGYFtZnyn Cable

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Datasheet Request a quote

YHKGYFtZnyn CablePN-G-90006 0.6/1 kV, 3.6/6 kV & 6/10 kV H-screened, galvanized steel-tape armoured

Fixed installation

Switchgear & control cabinet wiring

Immersion & wet locations

Energy chain / drag chain

YHKGYFtZnyn 0.6/1 kV (3×16 to 4×150 mm²)

YHKGYFtZnyn 3.6/6 kV & 6/10 kV (3×25 to 3×185 mm²)

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

YHKGYFoyn

YKGYFtZnyn

YHKGYekyn

YHKGYyn