Mine roadway & tunnel wall hangers
Individual semi-conductive rubber screens trip mine leakage relays before phase-to-phase arcing can ignite methane.
Product
KGESh (КГЭШ) is the workhorse GOST 24334 380/660 V and 660/1140 V screened flexible rubber trailing cable for underground coal mines, roadheaders, drilling rigs, and loading machines, featuring individual semi-conductive elastomeric screens over every
Typical values for this cable type, based on GOST 24334 / TU 16.K73.05 (КГЭШ) — confirmed in the datasheet and quotation for your order.
Application fit
Designed for general underground mine trailing duty on roadheaders, shuttle cars, face loaders, feeder breakers, and mobile gate-end switchgear at 660 V and 1140 V.
Individual semi-conductive rubber screens trip mine leakage relays before phase-to-phase arcing can ignite methane.
Flexible 5×D construction trails smoothly behind roadheaders, loaders, and drilling carriages.
Non-metallic conductive rubber screens resist wire fatigue in cable handler troughs.
Widely hung on roadway gallery hooks to interconnect gate-end boxes and face fans.
For steep seams or high tensile loads use steel-reinforced KGEZhTSh.
KGEZhTShConstruction
Three Class 5 flexible copper power cores + 1 earth conductor + 1 to 3 control cores, individual semi-conductive rubber screens (Э) over
| # | Layer | Material & reference |
|---|---|---|
| 1 | Phase, earth & control conductors | Finely stranded annealed copper, Class 5 per GOST 22483 / IEC 60228GOST 22483 Class 5 |
| 2 | Semi-conductive centre cradle | Extruded conductive rubber core maintaining electrical contact between screens and earthGOST 24334 |
| 3 | Core insulation | Insulating rubber RTI-1 (+75 °C) or ethylene-propylene rubber EPR (+90 °C)GOST 24334 |
| 4 | Individual core screens (Э) | Extruded semi-conductive rubber layer over each power and control core (≤ 300 Ω·cm)GOST 24334 |
| 5 | Flame-retardant mine sheath (Ш) | Heavy-duty flame-retardant, oil- and tear-resistant polychloroprene RShN-1GOST 24334 |
Standard 1140 V screened underground mine trailing cable for shearers, roadheaders, and loaders.
Compact 660 V screened trailing cable for underground drills, pumps, and auxiliary face equipment.
Technical data
Sizes
Nominal dimensions, copper weights and electrical parameters for KGESh per GOST 24334 / TU 16.K73.05 (КГЭШ).
| Order designation | Configuration | Phase size mm² | Outer Ø ≈ mm | Copper kg/km | Weight ≈ kg/km | Min. bend R fixed mm | Enquiry |
|---|---|---|---|---|---|---|---|
| Standard KGESh configurations | |||||||
| KGESh 3×4+1×4+1×2.5 - 660 V | 3×4 + 1×4E + 1×2.5 (660 V) | 4 | 20.5 | 178 | 540 | 102 | |
| KGESh 3×6+1×6+1×2.5 - 660 V | 3×6 + 1×6E + 1×2.5 (660 V) | 6 | 22.4 | 255 | 660 | 112 | |
| KGESh 3×10+1×10+3×2.5 - 1140 V | 3×10 + 1×10E + 3×2.5 (1140 V) | 10 | 28.5 | 455 | 1,080 | 142 | |
| KGESh 3×16+1×10+3×2.5 - 1140 V | 3×16 + 1×10E + 3×2.5 (1140 V) | 16 | 31.8 | 630 | 1,360 | 159 | |
| KGESh 3×25+1×10+3×2.5 - 1140 V | 3×25 + 1×10E + 3×2.5 (1140 V) | 25 | 35.5 | 890 | 1,750 | 178 | |
| KGESh 3×35+1×10+3×2.5 - 1140 V | 3×35 + 1×10E + 3×2.5 (1140 V) | 35 | 38.8 | 1,180 | 2,180 | 194 | |
| KGESh 3×50+1×16+3×2.5 - 1140 V | 3×50 + 1×16E + 3×2.5 (1140 V) | 50 | 43.2 | 1,670 | 2,820 | 216 | |
| KGESh 3×70+1×25+3×2.5 - 1140 V | 3×70 + 1×25E + 3×2.5 (1140 V) | 70 | 48.5 | 2,330 | 3,680 | 242 | |
| KGESh 3×95+1×35+3×2.5 - 1140 V | 3×95 + 1×35E + 3×2.5 (1140 V) | 95 | 53.8 | 3,160 | 4,720 | 269 | |
| KGESh 3×120+1×35+3×2.5 - 1140 V | 3×120 + 1×35E + 3×2.5 (1140 V) | 120 | 58.2 | 3,880 | 5,640 | 291 | |
| 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 |
|---|---|---|---|---|---|
| 3×4 + 1×4E + 1×2.5 (660 V) | 5.074 | 40 | 34 | 117 | 3,500 |
| 3×6 + 1×6E + 1×2.5 (660 V) | 3.382 | 51 | 43 | 120 | 3,500 |
| 3×10 + 1×10E + 3×2.5 (1140 V) | 1.958 | 70 | 60 | 126 | 3,500 |
| 3×16 + 1×10E + 3×2.5 (1140 V) | 1.240 | 93 | 79 | 136 | 3,500 |
| 3×25 + 1×10E + 3×2.5 (1140 V) | 0.799 | 122 | 104 | 151 | 3,500 |
| 3×35 + 1×10E + 3×2.5 (1140 V) | 0.568 | 150 | 128 | 168 | 3,500 |
| 3×50 + 1×16E + 3×2.5 (1140 V) | 0.396 | 187 | 159 | 192 | 3,500 |
| 3×70 + 1×25E + 3×2.5 (1140 V) | 0.279 | 229 | 195 | 226 | 3,500 |
| 3×95 + 1×35E + 3×2.5 (1140 V) | 0.211 | 276 | 235 | 267 | 3,500 |
| 3×120 + 1×35E + 3×2.5 (1140 V) | 0.165 | 319 | 271 | 308 | 3,500 |
Quality & approvals
Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.
| Testing & inspection | Test value / reference | Frequency |
|---|---|---|
| Routine tests | ||
| AC voltage withstand test | 3.5 kV rms (1140 V) or 2.5 kV rms (660 V) / 5 min | 100 % of drums |
| Semi-conductive screen resistivity | ≤ 300 Ω·cm per GOST 24334 | 100 % of drums |
| Sample tests | ||
| Roller-bench flexing & torsion test | GOST 24334 cyclic flex without screen discontinuity | Per production batch |
| Mine flame propagation test | GOST IEC 60332-1-2 self-extinguishing | Type approval |
Marking & supply
Sheath marking
Technical documents
FAQ
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