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GOST KGE / KGESh screened mining & excavator cablesGOST 24334 / TU 16.K73660/1140 V (1.14 kV)Load-Bearing Cradle · +90 °C EPR

KGES / KGRES Screened Mining Coal-Cutter Rubber Trailing CableGOST 24334 660/1140 V cradle-reinforced (С) & heat-resistant EPR (Р) coal-cutter cable

KGES / KGRES (КГЭС / КГРЭС) are 660/1140 V (0.66/1.14 kV) underground longwall coal-shearer flexible trailing cables built to GOST 24334, featuring a high-strength central load-bearing cradle core (С) and, in KGRES, +90 °C ethylene-propylene rubber

EMC screen

Approved

Oil-resistant

Flame-retardant

Configuration

Order designation: KGRES 3×50+1×16+3×2.5
Outer Ø ≈: 45.5 mm
Copper weight: 1,680 kg/km
Total weight ≈: 3,020 kg/km
Min. bend R (fixed): 228 mm

All sizes (10)

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

Rated voltage: 660/1140 V
Central element: Cradle Core (С)
Insulation: EPR +90 °C (Р)
Screening: Phase + Pilot Э
Outer sheath: RShN-1 Mine PCP
Min. bend radius: 5×D

Typical values for this cable type, based on GOST 24334 / TU 16.K73 (КГЭС / КГРЭС) — confirmed in the datasheet and quotation for your order.

Application fit

Is KGES / KGRES right for your machine?

Engineered for high-output 1140 V underground longwall coal shearers, roadheaders, and face conveyors where high ampacity (+90 °C EPR in KGRES) and axial haulage tensile strength (С cradle) are

Longwall shearer & Bretby handler

Suitable

5×D minimum bending radius and non-metallic/composite screens excel in longwall Bretby chains.

Mine roadway & tunnel wall hangers

Suitable

Central load-bearing cradle (С) absorbs haulage tension without stretching phase conductors.

Trailing & towing

Suitable

Flame-retardant polychloroprene outer sheath resists coal-face abrasion and hydraulic emulsion.

Fixed installation

Suitable

Suitable for gate-road feeder runs and mobile transformer interconnections.

Vertical / spreader reel

Not suitable

For vertical shaft or steep-seam steel-rope duty specify KGEZhTSh.

KGEZhTSh

Typical machinesUnderground longwall coal mining1140 V shearers & roadheadersMechanized face conveyor drivesCIS & Eastern European collieries

Construction

Layer by layer

High-strength synthetic-cord reinforced central elastomer cradle (С), three Class 5 copper phase cores with +90 °C EPR insulation (KGRES)

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Phase, earth & control conductors	Finely stranded copper, Class 5 per GOST 22483 / IEC 60228GOST 22483 Class 5
2	Reinforced central cradle (С)	Synthetic-cord reinforced profiled elastomer core (сердечник) absorbing axial tensionGOST 24334
3	EPR core insulation (Р)	Heat-resistant ethylene-propylene rubber (+90 °C in KGRES) or RTI-1 (+75 °C in KGES)GOST 24334
4	Phase & control screens (Э)	Semi-conductive rubber or copper-polymer tape/braid screen over power and control coresGOST 24334
5	Outer mine sheath (RShN-1)	Heavy-duty flame-retardant, oil- and tear-resistant polychloroprene compoundGOST 24334

KGES (КГЭС) (+75 °C)

660/1140 V screened coal-cutter cable with reinforced central cradle (С) and RTI-1 rubber insulation.

KGRES (КГРЭС) (+90 °C EPR)

Upgraded +90 °C ethylene-propylene rubber (Р) insulation delivering ~18 % higher current rating for modern

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on GOST 24334 / TU 16.K73 (КГЭС / КГРЭС). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U: 660/1140 V (0.66/1.14 kV) AC, 50 Hz
Control core voltage: Up to 220 V / 380 V AC intrinsic safety &
AC routine test voltage: 3.5 kV rms / 5 min (power) · 1.5 kV (control)
Insulation resistance @ 20 °C: ≥ 100 MΩ·km (KGRES EPR)

Thermal

Max. conductor temp. (KGRES / KGES): +90 °C (KGRES EPR) · +75 °C (KGES)
Max. short-circuit temperature: +250 °C (KGRES) · +200 °C (KGES)
Ambient temperature range: -30 °C to +50 °C

Mechanical

Min. bending radius: 5 × cable outer diameter
Max. tensile load: 24.5 N/mm² (2.5 kgf/mm²) with central С
Crush & impact resistance: Profiled central cradle prevents inter-core

Resistance

Flame retardancy: GOST IEC 60332-1-2 underground mine flame
Oil & hydraulic emulsion: GOST 24334 RShN-1 oil-resistant jacket
Abrasion & tear resistance: Heavy-duty longwall coal-face rubber

Reference standards

Primary specification: GOST 24334 / TU 16.K73 (КГЭС / КГРЭС)
Conductor standard: GOST 22483 / IEC 60228 Class 5

Identification

Core coding: 3 phase cores + 1 earth + 3 to 6 control
Outer sheath colour: Yellow or Black with embossed КГЭС / КГРЭС

Sizes

10 standard configurations (KGES / KGRES)

Nominal dimensions, copper weights and electrical parameters for KGES / KGRES per GOST 24334 / TU 16.K73 (КГЭС / КГРЭС).

Dimensions & weights
Order designation	Configuration	Phase size mm²	Outer Ø ≈ mm	Copper kg/km	Weight ≈ kg/km	Min. bend R fixed mm
Standard KGES / KGRES configurations
KGRES 3×16+1×10+3×2.5	3×16 + 1×10 + 3×2.5	16	33.5	640	1,480	168
KGRES 3×25+1×10+3×2.5	3×25 + 1×10 + 3×2.5	25	37.2	900	1,890	186
KGRES 3×35+1×16+3×2.5	3×35 + 1×16 + 3×2.5	35	41.0	1,245	2,380	205
KGRES 3×50+1×16+3×2.5	3×50 + 1×16 + 3×2.5	50	45.5	1,680	3,020	228
KGRES 3×70+1×25+3×2.5	3×70 + 1×25 + 3×2.5	70	50.8	2,340	3,910	254
KGRES 3×95+1×35+3×2.5	3×95 + 1×35 + 3×2.5	95	56.2	3,170	5,010	281
KGRES 3×120+1×35+3×2.5	3×120 + 1×35 + 3×2.5	120	60.8	3,890	5,980	304
KGES 3×50+1×16+4×2.5	3×50 + 1×16 + 4×2.5 (KGES)	50	46.2	1,705	3,110	231
KGES 3×70+1×25+4×2.5	3×70 + 1×25 + 4×2.5 (KGES)	70	51.5	2,365	4,010	258
KGES 3×95+1×35+4×2.5	3×95 + 1×35 + 4×2.5 (KGES)	95	57.0	3,195	5,120	285

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 GOST 24334 / TU 16.K73 (КГЭС / КГРЭС).

Electrical & ampacity data
Configuration	Max. DC R @ 20 °C Ω/km	Current rating in air (A)	Current rating installed (A)	Mutual C pF/m ≈	AC test V rms
3×16 + 1×10 + 3×2.5	1.240	93	79	136	3,500
3×25 + 1×10 + 3×2.5	0.799	122	104	151	3,500
3×35 + 1×16 + 3×2.5	0.568	150	128	168	3,500
3×50 + 1×16 + 3×2.5	0.396	187	159	192	3,500
3×70 + 1×25 + 3×2.5	0.279	229	195	226	3,500
3×95 + 1×35 + 3×2.5	0.211	276	235	267	3,500
3×120 + 1×35 + 3×2.5	0.165	319	271	308	3,500
3×50 + 1×16 + 4×2.5 (KGES)	0.396	187	159	192	3,500
3×70 + 1×25 + 4×2.5 (KGES)	0.279	229	195	226	3,500
3×95 + 1×35 + 4×2.5 (KGES)	0.211	276	235	267	3,500

Current ratings apply at +30 °C ambient in free air; apply standard derating factors for elevated ambient or drum layers.

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 AC voltage withstand	3.5 kV rms / 5 min on 1140 V power cores	100 % of drums
Screen continuity & resistance	GOST 24334 individual phase & pilot screen check	100 % of drums
Sample tests
Bretby sheave flex & tension test	Cyclic flexing under 2.5 kgf/mm² tension	Per production batch
Mine flame retardancy test	GOST IEC 60332-1-2 self-extinguishing	Type approval

Inspection certificate

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

Product approvals

GOST 24334TU 16.K73EN 10204 3.1

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX KGES / KGRES 660/1140V GOST 24334

Delivery form: Fumigated export wooden drums
Standard drum lengths: 300 m · 500 m · 1000 m (or custom cut
MOQ: 100 m (stock sizes) · 300 m (custom build)
Lead time: 3–5 weeks ex-works
Incoterms: EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFKGES / KGRES Screened Mining Coal-Cutter Rubber Trailing Cable – technical datasheet10 sizes · construction, technical data, approvals XLSXKGES / KGRES spec data (Excel)All 10 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 is the difference between KGES (КГЭС) and KGRES (КГРЭС)?

Both cables share the same screened longwall coal-cutter construction with a load-bearing central cradle ('С' = сердечник), but KGRES ('Р' = этиленпропиленовая резина) uses +90 °C ethylene-propylene rubber (EPR) insulation instead of +75 °C general rubber, increasing continuous current-carrying capacity by roughly 15–18 %.

How does KGES / KGRES differ from standard KGESh (КГЭШ)?

KGES and KGRES incorporate a dedicated high-strength profiled central cradle ('С') reinforced with synthetic cords to carry longitudinal haulage tension and prevent core cross-over inside longwall Bretby cable handlers, whereas standard KGESh uses a conventional core lay-up. Each production drum undergoes routine dielectric voltage testing, conductor DC resistance verification, and sheath dimensional inspection before dispatch with an EN 10204 3.1 mill test certificate.

Why is the 660/1140 V rating important for underground coal shearers?

1140 V (1.14 kV) is the standard underground coal-face operating voltage across GOST-regulated collieries, allowing longwall shearer cutter motors and armoured face conveyors to draw high power over 250–400 m gate-road and face cable runs with low voltage drop. Each production drum undergoes routine dielectric voltage testing, conductor DC resistance verification, and sheath dimensional inspection before dispatch with an EN 10204 3.1 mill test certificate.

Can KGRES be supplied with optical fibres for automated longwall shearers?

Yes. When an integrated fibre-optic telemetry module is required alongside the +90 °C EPR power and control cores, specify KOGRESh (КОГРЭШ / КОГРЭСШ), which embeds a loose-tube or tight-buffered optical element in the assembly. Each production drum undergoes routine dielectric voltage testing, conductor DC resistance verification, and sheath dimensional inspection before dispatch with an EN 10204 3.1 mill test certificate.

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KGES / KGRES Screened Mining Coal-Cutter Rubber Trailing Cable

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Datasheet Request a quote

KGES / KGRES Screened Mining Coal-Cutter Rubber Trailing CableGOST 24334 660/1140 V cradle-reinforced (С) & heat-resistant EPR (Р) coal-cutter cable

Longwall shearer & Bretby handler

Mine roadway & tunnel wall hangers

Trailing & towing

Fixed installation

Vertical / spreader reel

KGES (КГЭС) (+75 °C)

KGRES (КГРЭС) (+90 °C EPR)

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

KGESh 660/1140 V

KGETSh 660/1140 V–1.9/3.3 kV

KOGRESh 660/1140 V–1.9/3.3 kV

TGSH / TGSH2G