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mining shaft cable

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。
20 Min Read
Over the past two decades, the cable industry has witnessed a fundamental transformation in safety requirements for confined space installations, particularly in tunnels, underground transit systems, and mining operations. At the center of this evolution lies the shift from traditional halogenated flame retardant cables to halogen-free, low-smoke alternatives. This technological transition represents more than just a materials change—it reflects a deeper understanding of fire safety dynamics and the true risks that cable fires pose to human life, critical infrastructure, and emergency response operations.1 在过去的二十年中，电缆行业在密闭空间安装（特别是隧道、地下交通系统和采矿作业）的安全要求方面发生了根本性的转变。这一演变的核心是从传统的卤化阻燃电缆向无卤、低烟替代品的转变。
Technical Department
on27/01/2026

Halogen-Free Mining: Why (N)TSCGEWÖU-FR Cables are Becoming Mandatory in Tunnel Projects

Over the past two decades, the cable industry has witnessed a fundamental transformation in safety requirements for confined space installations, particularly in tunnels, underground transit systems, and mining operations. At the center of this evolution lies the shift from traditional halogenated flame retardant cables to halogen-free, low-smoke alternatives. This technological transition represents more than just a materials change—it reflects a deeper understanding of fire safety dynamics and the true risks that cable fires pose to human life, critical infrastructure, and emergency response operations.1 在过去的二十年中，电缆行业在密闭空间安装（特别是隧道、地下交通系统和采矿作业）的安全要求方面发生了根本性的转变。这一演变的核心是从传统的卤化阻燃电缆向无卤、低烟替代品的转变。