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medium voltage drum cable

20 Min Read
Full technical breakdown Lapp ÖLFLEX CRANE NSHTÖU 0.6/1 kV (max 1.2 kV): specialized motorized drum cable for cranes (gantry, bridge, portal, jib) with extreme cold capability -25°C to -40°C dynamic. NSHTÖU per VDE 0250-814: N (normalized), S (hose-type), H (special elastomer), T (trommel/drum), Ö (oil-resistant), U (reinforced). Works at spool speeds up to 120 m/min in repeated flex. Core problem: standard neoprene outers become brittle below -25°C and crack during drum bending. Arctic version uses modified elastomer compound (5GM5-Arctic) with plasticizers that don't crystallize at sub-zero, ensures -40°C operation. Configuration 4G50: tinned Cu Cl.5, special EPR 3GI3 insulation, internal anti-skewing rubber extrusion, outer Arctic-grade neoprene or PUR. OD ~18–22 mm, weight ~0.85–1.1 kg/m, current ~250–280 A. Alternatives: (1) FeiChun NSHTÖU-Cold — Lapp equivalent with Arctic compound, -40°C dynamic, better price; (2) FeiChun PUR Reeling Cable — PUR sheath, -50°C capable, 15–20% lighter, preferred for Arctic/Siberia. Russian GOST alternatives (КГРПУ, КГЭЖ-ХЛ) require TU modification for drum application.
Technical Department
on16/03/2026

ÖLFLEX CRANE NSHTÖU Морозостойкий кабель для крановых барабанов: инженерия холода — FeiChun NSHTÖU-Cold и PUR Reeling Cable, аналог Lapp

Full technical breakdown Lapp ÖLFLEX CRANE NSHTÖU 0.6/1 kV (max 1.2 kV): specialized motorized drum cable for cranes (gantry, bridge, portal, jib) with extreme cold capability -25°C to -40°C dynamic. NSHTÖU per VDE 0250-814: N (normalized), S (hose-type), H (special elastomer), T (trommel/drum), Ö (oil-resistant), U (reinforced). Works at spool speeds up to 120 m/min in repeated flex. Core problem: standard neoprene outers become brittle below -25°C and crack during drum bending. Arctic version uses modified elastomer compound (5GM5-Arctic) with plasticizers that don’t crystallize at sub-zero, ensures -40°C operation. Configuration 4G50: tinned Cu Cl.5, special EPR 3GI3 insulation, internal anti-skewing rubber extrusion, outer Arctic-grade neoprene or PUR. OD ~18–22 mm, weight ~0.85–1.1 kg/m, current ~250–280 A. Alternatives: (1) FeiChun NSHTÖU-Cold — Lapp equivalent with Arctic compound, -40°C dynamic, better price; (2) FeiChun PUR Reeling Cable — PUR sheath, -50°C capable, 15–20% lighter, preferred for Arctic/Siberia. Russian GOST alternatives (КГРПУ, КГЭЖ-ХЛ) require TU modification for drum application.
23 Min Read
NSHTÖU Standard Reeling Cable General-purpose low voltage reeling cable for RTG main power distribution and RMG trolley festoon applications. Features robust chloroprene rubber (CR) outer sheath providing excellent weather, oil, and abrasion resistance for outdoor port environments.
Technical Department
on28/11/2025

Gantry Crane Cable Systems: Complete Technical Guide for RTG and RMG Container Terminals

Beyond mechanical flexibility, EPR demonstrates superior resistance to thermal aging compared to PVC alternatives. Spreader cables, hanging vertically in outdoor service, experience continuous UV radiation exposure along their entire suspended length. EPR compounds formulated for outdoor cable service incorporate carbon black and antioxidant additives that protect against UV-induced degradation, maintaining insulation integrity and mechanical properties over decades of exposure. The material also resists ozone attack, another common degradation mechanism for elastomeric materials in outdoor industrial environments where electrical equipment generates ozone as a byproduct of corona discharge and sparking.