Steel Wire Armoured (SWA) cables represent one of the most robust and widely-used power cable designs for demanding installations. The 6943X (3-core) and 6944X (4-core) series are specifically engineered for applications wherever there is risk of mechanical stress or mechanical damage, including underground installations and outdoor environments. The steel wire armour layer serves as a protective barrier that significantly reduces the risk of cable pinching, impact damage, or other physical harm that could compromise electrical integrity. These cables are manufactured to BS 5467 standards and are suitable for direct burial without additional conduit protection, as well as surface installation on cable trays, baskets, clips, and in free air.

鋼絲鎧裝（SWA）電纜代表了要求嚴苛安裝環境中最堅固和最廣泛使用的電力電纜設計之一。6943X（3芯）和 6944X（4芯）系列專為存在機械應力或機械損壞風險的應用而設計，包括地下安裝和戶外環境。鋼絲鎧裝層作為保護屏障，顯著降低電纜被夾壓、衝擊損壞或其他可能損害電氣完整性的物理傷害風險。這些電纜按照 BS 5467 標準製造，適用於無需額外導管保護的直埋安裝，以及電纜托盤、籃架、卡扣上的表面安裝和架空敷設。

The 6943X 3-core Steel Wire Armoured cable is designed for power distribution and auxiliary control applications requiring mechanical protection. The three-conductor configuration is ideal for single-phase systems with earth (Line, Neutral, Earth) or three-phase systems without neutral. Available in cross-sections from 1.5mm² to 16mm², these cables support current capacities ranging from 23A to 94A, making them suitable for outdoor lighting circuits through to substantial power feeds. The stranded copper conductors ensure flexibility during installation while the steel wire armour provides robust protection against mechanical damage during and after installation.

6943X 3芯鋼絲鎧裝電纜專為需要機械保護的電力分配和輔助控制應用而設計。三導體配置非常適合帶接地的單相系統（火線、零線、地線）或無中性線的三相系統。提供 1.5mm² 至 16mm² 的截面積，這些電纜支持 23A 至 94A 的電流容量，適用於從戶外照明電路到大功率電源饋送。絞合銅導體確保安裝過程中的柔韌性，而鋼絲鎧裝在安裝期間和之後提供強大的機械損壞保護。

The 6944X 4-core Steel Wire Armoured cable is the four-conductor variant designed primarily for three-phase power distribution systems with a dedicated earth conductor (L1, L2, L3, Earth). This configuration is the standard choice for three-phase motor supplies, industrial equipment connections, and commercial power distribution where all three phases plus protective earth are required. With current capacities ranging from 27A (1.5mm²) to 110A (16mm²), these cables can support everything from small three-phase equipment to substantial industrial machinery. The additional fourth core compared to 6943X results in slightly larger overall diameters but enables complete three-phase plus earth wiring in a single cable run.

6944X 4芯鋼絲鎧裝電纜是四導體變體，主要設計用於帶專用接地導體的三相電力分配系統（L1、L2、L3、地線）。這種配置是三相電機供電、工業設備連接和需要三相加保護接地的商業電力分配的標準選擇。電流容量從 27A（1.5mm²）到 110A（16mm²），這些電纜可以支持從小型三相設備到大型工業機械的各種應用。與 6943X 相比，增加的第四芯導致整體直徑略大，但可以在單根電纜中完成完整的三相加接地佈線。

Understanding the construction of SWA cables helps in appreciating their performance characteristics and proper installation requirements. Each layer serves a specific purpose in ensuring electrical performance, mechanical protection, and longevity of the installation.

了解 SWA 電纜的結構有助於理解其性能特點和正確的安裝要求。每一層都在確保電氣性能、機械保護和安裝壽命方面發揮特定作用。

Steel Wire Armoured cables are the preferred choice for any installation where cables may be exposed to mechanical damage or harsh environmental conditions. The robust construction makes them suitable for direct burial in ground at minimum 450mm depth (600mm in roads), surface mounting on walls and structures, and routing through cable trays, baskets, and ducting systems. Their weather resistance and UV stability also make them excellent for exposed outdoor runs where cables cannot be protected by conduit.

鋼絲鎧裝電纜是任何可能遭受機械損壞或惡劣環境條件的安裝場所的首選。堅固的結構使其適用於最小 450mm 深度（道路下 600mm）的直接埋地、牆壁和結構上的表面安裝，以及穿過電纜托盤、籃架和管道系統的敷設。其耐候性和抗紫外線穩定性也使其非常適合無法用導管保護的裸露戶外敷設。