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DIN VDE 0276-620

5 Min Read
In modern tunnel boring machine (TBM) applications, the selection of appropriate voltage ratings for cutterhead drive systems is critical for operational efficiency, safety, and equipment longevity. For Herrenknecht TBMs—the world's leading manufacturer of mechanized tunneling equipment—the standard voltage rating for cutterhead high-voltage drives is predominantly 6kV (6/10kV class) and 10kV, with 20kV systems reserved for specialized high-power applications exceeding 5MW per motor. 在现代隧道掘进机（TBM）应用中，刀盘驱动系统的电压等级选择对运行效率、安全性和设备寿命至关重要。对于海瑞克TBM——全球领先的机械化隧道设备制造商——刀盘高压驱动的标准电压等级主要为6kV（6/10kV级）和10kV，20kV系统仅用于单电机功率超过5MW的特殊高功率应用。
Technical Department
on30/01/2026

TBM Cutterhead High-Voltage Drives: Which Voltage Rating (6kV, 10kV, or 20kV) is Standard for Herrenknecht TBM?

In modern tunnel boring machine (TBM) applications, the selection of appropriate voltage ratings for cutterhead drive systems is critical for operational efficiency, safety, and equipment longevity. For Herrenknecht TBMs—the world’s leading manufacturer of mechanized tunneling equipment—the standard voltage rating for cutterhead high-voltage drives is predominantly 6kV (6/10kV class) and 10kV, with 20kV systems reserved for specialized high-power applications exceeding 5MW per motor. 在现代隧道掘进机（TBM）应用中，刀盘驱动系统的电压等级选择对运行效率、安全性和设备寿命至关重要。对于海瑞克TBM——全球领先的机械化隧道设备制造商——刀盘高压驱动的标准电压等级主要为6kV（6/10kV级）和10kV，20kV系统仅用于单电机功率超过5MW的特殊高功率应用。
10 Min Read
The 6/10kV voltage rating represents one of the most widely used medium voltage cable classifications for power distribution networks worldwide. These cables serve as the backbone of industrial power systems, connecting generation units to distribution networks and providing power to manufacturing plants, commercial buildings, and infrastructure projects. The 6/10kV designation indicates cables designed for systems where the phase-to-earth voltage (U₀) is 6kV and the phase-to-phase voltage (U) is 10kV, with a maximum system voltage (Um) of 12kV according to IEC 60502-2.
Technical Department
on30/12/2025

What is 6/10kV Cable?

(N)3GHSSHCH – 3.6/6kV and 6/10kV Cable (N)3GHSSYCY – 3.6/6kV and 6/10kV Cable (N)TMCGEWÖU – 3.6/6kV, 6/10kV, 8.7/15kV Cable (N)TSCGECECWÖU – 3.6/6kV and 6/10kV Cable (N)TSCGECECWÖU – 3.6/6kV and 6/10kV ZH Cable (N)TSCGECEWÖU – 3.6/6kV and 6/10kV Cable (N)TSCGECEWÖU – 3.6/6kV and 6/10kV ATB Cable (N)TSCGECEWÖU – 1.8/3kV, 3.6/6kV and 6/10kV ATB Cable (Ground Check Conductor) (N)TSCGECEWÖU – 3.6/6kV and 6/10kV Submersible Cable (N)TSCGEWÖU – 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV, 18/30kV Cable (N)TSCGEWÖU – 3.6/6kV and 6/10kV FO Cable R-(N)TSCGEWÖU + FO Cable 3.6/6kV to 12/20kV (N)TSCGEWÖU – 3.6/6kV and 6/10kV ATB Cable (N)TSCGEWÖU – 3.6/6kV and 6/10kV ZH Cable (N)TSCGEWÖU – 3.6/6kV and 6/10kV Submersible Cable (N)TSKCGEWÖU Cable
8 Min Read
HD 620 is commonly linked to the German national standard DIN VDE 0276 Part 620 and is harmonized with international standard IEC 60502-2. The standard establishes comprehensive construction requirements, dimensional specifications, and test methods that exceed the baseline requirements of IEC 60502-2. Both HD 620 and IEC 60502-2 require compulsory conductor and insulation screening, typically applied through a triple extrusion process with the insulation layer. The test methodology for compliance is set out in HD 605 subclause 2.1.1 for insulation material and HD 605 subclause 2.1.2 for sheath material.
Technical Department
on29/12/2025

What is HD620 Standard Cable?

HD 620 cables are designed for power distribution networks, industrial installations, and infrastructure applications. These medium voltage cables are suitable for permanent installation in various environments including underground, outdoor, and cable ducting installations.
7 Min Read
Wind turbine medium voltage cables serve as the critical power transmission lifeline connecting wind turbine generators to step-up transformers and grid infrastructure. These cables must withstand extreme operational conditions including continuous mechanical stress from nacelle rotation, temperature fluctuations from -40°C to +90°C, and exposure to moisture in both onshore and offshore environments.
Technical Department
on12/12/2025

Wind Turbine Medium Voltage XLPE Power Cables12/20 (24) kV — Longitudinally & Radially Sealed

12/20 (24) kV XLPE-insulated cables manufactured by Anhui Feichun Special Cable Co., Ltd. feature longitudinal and radial water-blocking technology, ensuring reliable performance throughout the cable’s 30+ year design life. The cross-linked polyethylene (XLPE) insulation provides superior dielectric properties compared to traditional PVC, enabling higher operating temperatures and improved current-carrying capacity.