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unscreened pilot core

8 Min Read
Before specifying Type 7S cable for installation in tight mine shafts, engineers must understand the fundamental distinction between two completely different bending radius requirements: static (fixed position after installation) and dynamic (during pulling/deployment). 在为狭窄矿井安装指定Type 7S电缆之前，工程师必须理解两个完全不同的弯曲半径要求之间的根本区别：静态(安装后固定位置)和动态(拉动/部署过程中)。 Static Bend Radius: The minimum radius to which cable can be bent and held in a fixed, immobile position without risk of insulation cracking or internal conductor damage. Once the cable is in its final position and no pulling force is applied, this is the operative limit.
Technical Department
on06/03/2026

Bending Radius: Minimum Static Bend Limits for Installing Type 7S 6.6kV 3x120mm² in Tight Mine Shafts

Before specifying Type 7S cable for installation in tight mine shafts, engineers must understand the fundamental distinction between two completely different bending radius requirements: static (fixed position after installation) and dynamic (during pulling/deployment). 在为狭窄矿井安装指定Type 7S电缆之前，工程师必须理解两个完全不同的弯曲半径要求之间的根本区别：静态(安装后固定位置)和动态(拉动/部署过程中)。 Static Bend Radius: The minimum radius to which cable can be bent and held in a fixed, immobile position without risk of insulation cracking or internal conductor damage. Once the cable is in its final position and no pulling force is applied, this is the operative limit.
6 Min Read
BS6708, mining cable, quarry cable, trailing cable, EPR cable, SWA cable, coal cutter cable, excavator cable, 礦用電纜, 採石場電纜, 拖曳電纜
Technical Department
on19/12/2025

What is BS6708 Cable?

British Standard BS6708 sets out the requirements for flexible trailing cables where used in mining operations and quarries. These cables are often referred to as trailing cables, quarry cables, or auxiliary cables and have applications with a wide range of dynamic mining equipment including excavators, coal-cutters, crushing machines, and shuttle cars. flexible trailing cable, mine cable, EPR mining cable, SWA mining cable, chloroprene cable, coal cutter cable, excavator cable, shuttle car cable, crushing machine cable, coal face cable, Type 7 mining cable, Type 7M cable, Type 7S cable, Type 11 cable, Type 20 cable, Type 21 cable, Type 307 cable, Type 331 cable, Type 621 cable, Type 631 cable, 640/1100V mining cable, 1.9/3.3kV mining cable