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.

英國標準BS6708規定了在採礦作業和採石場中使用的柔性拖曳電纜的要求。這些電纜通常被稱為拖曳電纜、採石場電纜或輔助電纜，適用於各種動態採礦設備，包括挖掘機、採煤機、破碎機和穿梭車。

BS6708 mining cables are generally used in deep mines where explosive gases and dust can accumulate, and on surface operations for supplying power to excavating, crushing machines and equipment. The cables are designed to withstand high mechanical stresses, abrasion, and wear in trailing applications.

BS6708礦用電纜通常用於可能積聚爆炸性氣體和粉塵的深礦井，以及地面作業中為挖掘和破碎機械設備供電。這些電纜設計用於承受拖曳應用中的高機械應力、磨損和磨耗。

Type 7 mining cables are the standard trailing cables used in deep mines where explosive gases and dust can accumulate, and on surface for supplying excavating, crushing machines and equipment. These cables feature 3 screened power cores plus pilot core, with a bare earth conductor in the center.

7型礦用電纜是標準的拖曳電纜，用於可能積聚爆炸性氣體和粉塵的深礦井，以及地面挖掘和破碎機械設備供電。這些電纜具有3根屏蔽電力芯線和導向芯線，中心有裸露的接地導體。

Type 21 mining cable is a 4-core heavy-duty trailing cable with galvanised steel pliable wire armour (SWA). It is generally used in deep mines and on surface for supplying excavating, crushing machines and equipment. The steel wire armour provides mechanical protection for mine roadway extension cables and quarry applications.

21型礦用電纜是帶有鍍鋅鋼柔性鋼絲鎧裝（SWA）的4芯重型拖曳電纜。通常用於深礦井和地面挖掘、破碎機械設備供電。鋼絲鎧裝為礦井巷道延伸電纜和採石場應用提供機械保護。

Type 307 and Type 331 are medium voltage mining cables rated at 1.9/3.3kV, designed for excavators, coal cutting and crushing machinery requiring higher voltage supply. Type 331 includes galvanised steel pliable wire armouring for mechanically protected installations.

307型和331型是額定電壓為1.9/3.3kV的中壓礦用電纜，專為需要更高電壓供電的挖掘機、採煤和破碎機械設計。331型包括鍍鋅鋼柔性鋼絲鎧裝，用於機械保護安裝。

These are flexible multicore auxiliary cables with galvanised steel pliable wire armouring, designed to provide remote control circuits and for interconnection between machine sections and associated auxiliary equipment. They operate at a lower voltage of 320/550V.

這些是帶鍍鋅鋼柔性鋼絲鎧裝的多芯柔性輔助電纜，設計用於提供遠程控制電路以及機器部件與相關輔助設備之間的互連。它們在較低的320/550V電壓下運行。

Anhui Feichun Special Cable Co., Ltd. is a professional manufacturer of mining cables, trailing cables, and special cables for heavy-duty industrial applications. Our technical team provides comprehensive support for cable selection, project specifications, and compliance with BS6708 and international mining cable standards including SANS 1520.

安徽飞纯特种电缆有限公司是專業的礦用電纜、拖曳電纜和重型工業應用特種電纜製造商。我們的技術團隊為電纜選擇、項目規格以及符合BS6708和國際礦用電纜標準（包括SANS 1520）提供全面支持。