KGE, KGESh and KGETSh 1.14 to 6kV GOST Mining Cable

Mining operations across Kazakhstan, Uzbekistan, Mongolia, Eastern Europe and CIS-designed mineral projects rely on the GOST screened flexible rubber cable hierarchy—designated KGE (КГЭ), KGE-KhL (КГЭ-ХЛ), KGESh (КГЭШ) and KGETSh (КГЭТШ)—to power 6 kV open-pit electric rope shovels (such as EKG-5A, EKG-8I, EKG-10 and EKG-15) and 1.14 kV underground coal-face shearers, roadheaders and shuttle cars.

Unlike Western cables that use braided metallic phase shields alone, the Russian GOST screened architecture relies on extruded conductive/semi-conducting elastomeric rubber screens (E = Ekranirovannyi) over both the conductor and the EPR/rubber insulation of the three power cores and auxiliary control core, laid around a conductive elastomeric central cradle in underground shaft designs. When a rock fall or mechanical pinch compresses the cable, the semi-conducting phase screen immediately contacts the grounded central cradle or protective earth conductor, tripping the mine fast-acting leakage relay before an open arc can ignite methane or coal dust.

Selecting the correct designation matches the mechanical and thermal environment: KGE (1.14 kV and 6 kV) serves surface excavators and drills down to -40 C (or -60 C in Arctic KGE-KhL execution); KGESh (1.14 kV) features a flame-retardant polychloroprene shaft sheath (Sh = Shakhtnyi) for underground coal faces; and KGETSh (1.14 kV) upgrades to 90 C heat-resistant EPR insulation (T = Teplostoikii) plus synthetic anti-torsion reinforcement for high-output longwall shearers. TEBAOFLEX manufactures this range from a 50 m MOQ with a 7 to 45 working day lead time.

Explore the mining and tunneling cable range for related configurations.

Construction

The horizontal sample illustrates the GOST 24334 / 31945 screened mining cable architecture (represented by 1.14 kV KGESh / KGETSh and 6 kV KGE), showing three flexible Class 5 copper phase conductors with semi-conducting rubber conductor and insulation screens, one screened auxiliary control core, one grounding conductor, conductive elastomeric central cradle, synthetic reinforcing braid (on KGETSh) and heavy-duty flame-retardant polychloroprene or cold-resistant rubber outer sheath.

Applications

Specify KGE, KGE-KhL, KGESh or KGETSh cables for 1.14 kV underground coal machinery and 6 kV open-pit electric excavators designed to GOST electrical standards.

• 6 kV open-pit electric rope shovels (EKG-5A, EKG-8I, EKG-10, EKG-12, EKG-15), walking draglines and rotary blasthole drills using KGE or Arctic KGE-KhL (-60 C) trailing cables.
• 1.14 kV (1140 V) underground coal longwall shearers, roadheaders, loading machines and face conveyors using flame-retardant KGESh or reinforced heat-resistant KGETSh cables.
• Mobile substation feeders and portable distribution boxes in Central Asian, Mongolian and Eastern European underground and surface mines operating on 1140 V and 6000 V 50 Hz networks.
• Direct metric GOST replacements where Western AWG-sized SHD-GC (Product 2134) or DIN VDE (N)TSCGEWOU (Product 1956) cables do not match Russian semi-conducting leakage relay impedances or gland diameters.

Related selection resources

• Mining and tunneling cable engineering solutions
• Underground and surface open-pit mining cable selection guide
• (N)TSCGEWÖU 3.6/6 kV to 12/20 kV mine distribution and excavator cable
• UGF and UGEFP high-voltage open-pit mining trailing cable (3.6/6 to 6/10 kV)
• MY, MYQ, WD-MY and WD-MYP Flexible Coal Mining Cable

Specifications

For 1.14 kV standard KGESh cables with 75 °C rated rubber insulation, multiply the tabulated 90 °C KGETSh current ratings by 0.86; always verify ambient mine airway temperature and reel/handler layering.

Additional multi-control-core configurations (such as 3x25+1x10+3x2.5 mm², 3x50+1x16+3x4 mm² and 3x95+1x25+3x4 mm²) are manufactured to order for shearers requiring multiple pilot and interlock circuits.

Specify climatic execution U (temperate -40 °C), KhL (cold/Arctic -60 °C) or T (tropical mold/humidity resistant) when requesting a quotation.

Standards

Certifications and document support

TEBAOFLEX company certificates and quality system documentation

IEC Webstore — IEC 60228 Class 5 Conductors and IEC 60332 Flame Testing Standards