Overview
Bare armored cable is a type of electrical cable designed for environments requiring extra mechanical protection. Unlike sheathed cables, it lacks an outer insulating jacket, exposing the metal armor layer. This design prioritizes durability over aesthetics, making it ideal for industrial settings where cables may face abrasion, impact, or rodent damage. The armor, typically made of steel or aluminum, provides structural integrity while allowing flexibility for installation. These cables are commonly used in power distribution networks, underground conduits, and temporary construction setups where ruggedness is critical.
Structure and Working Principle
A bare armored cable consists of multiple layers: conductive cores (copper or aluminum), insulation (e.g., PVC or XLPE), a bedding layer, and the metal armor. The armor is either interlocked (for flexibility) or corrugated (for crush resistance). Some designs include a moisture barrier to enhance longevity in damp conditions. Electric current flows through the conductors, while the armor acts as a grounded shield, protecting against physical damage and electromagnetic interference. The absence of an outer jacket reduces weight and cost but requires careful handling to prevent corrosion in exposed areas.
Key Features
Mechanical resilience is the standout feature of bare armored cables. The metal armor withstands compression, tension, and punctures, making it suitable for direct burial or exposed installations. Corrosion-resistant coatings (e.g., galvanized steel) extend service life in harsh environments. These cables also offer excellent fire resistance, especially with XLPE insulation. However, their flexibility varies by design; interlocked armor allows easier bending than continuous corrugated armor. Proper grounding of the armor is essential to avoid electrical hazards.
Application Areas
Bare armored cables are widely deployed in industrial plants, mining operations, and infrastructure projects. They are preferred for underground power lines, outdoor substations, and areas prone to mechanical stress, such as oil rigs or manufacturing floors. Temporary installations, like concert stages or disaster recovery sites, also benefit from their durability. In marine environments, aluminum-armored versions resist saltwater corrosion. Their use is governed by regional electrical codes (e.g., NEC Article 330 for the US).
Maintenance and Precautions
Regular inspections are crucial to detect armor damage or corrosion, especially in humid or chemically aggressive settings. Clean exposed armor with a dry cloth and apply anti-corrosion spray if needed. Avoid sharp bends during installation to prevent insulation breaches. Ensure proper grounding to mitigate shock risks. When splicing, use armored cable connectors rated for the specific cable type. In high-traffic areas, additional conduit protection may be necessary despite the armor’s robustness.
B2B Procurement Guide
When sourcing bare armored cables, specify conductor size (AWG/mm²), armor type (steel/aluminum), and insulation material. Bulk purchases typically offer cost savings, but verify minimum order quantities. Reputable suppliers provide test certificates (e.g., for IEC 60502 or UL 1569 compliance). Lead times vary; stock items ship faster, while customized cables (e.g., special armor coatings) may require weeks. Negotiate pricing based on volume and consider total cost of ownership, including installation and maintenance expenses. For international shipments, confirm compliance with destination-country standards.
Related Manufacturers
- 主营：[]
- 主营：[]
- 主营：电线电缆、特种电缆、船用电缆、石油平台电缆
- 主营：[]
- 主营：矿用网线、矿用光缆、超五类网线、通讯电缆、矿用阻燃电缆、矿用橡套电缆、计算机电缆、控制电缆、矿用通讯电缆、防水电缆、RS485电缆、HSGWP22电缆、屏蔽电缆、铠装光缆、铠装电缆、铠装屏蔽网线、超六类网线
- 主营：控制电缆、橡套电缆、屏蔽电缆、电力电缆、扁平电缆、阻燃电缆、防水电缆、铠装电缆、通信电缆、硅橡胶电缆、氟塑料电缆、计算机电缆、柔性防火电缆、补偿导线、特种线缆
- 主营：电线电缆、电力电缆、控制电缆、屏蔽电缆、橡套电缆、矿物电缆、高压电缆、预分支电缆、布电线
- 主营：护套线、屏蔽线、网线、计算机电缆、控制电缆、同轴电缆、通讯电缆、KNX总线电缆、船用电缆、水下观测电缆、拖链电缆、机器人电线电缆、双绞线、消防线、话缆
- 主营：MKVV、MHYV、HYA、铁路信号电缆、矿用电缆、矿用通讯电缆、矿用橡套电缆、MYQ、KVV、KVVP
- 主营：市政管道、排水管、排污管、高压电线电缆、电缆保护管、电线电缆、电力管、给水管、梅花管、穿线管、塑料管道、农田灌溉管、污水处理管、预埋排污管、通信管、塑料检查井、双向拉伸管、下水道排污管、波纹管、铝芯线缆、钢丝网骨架、铜芯线缆、排水排污、玻璃钢电力管、自来水管
- 主营：计算机电缆、控制电缆、行车扁电缆、本安电缆、硅橡胶电缆、橡套电缆、通讯电缆、拖链电缆、视频电缆、热电偶铠装丝、补偿导线、热电偶
- 主营：磁翻板液位计、音叉液位计、磁致伸缩液位计、钢丝铠装电缆、磁浮球液位计、压力表、温度传感器、流量计、超声波雷达
- 主营：电话线、双绞线、1x2x24awg、电缆线、信号电缆、灯控线、超五类、3*2*16awg、同轴线、信号线、视频线、通信线、通讯线、100x2x0.8、连接线、eib总线、计算机、1x2x1.0awg、1x2x0.2awg、ycym2x2x0.8、17182024awg、syv-75-2-2x、欧洲总线、智能灯控、传输信号
- 主营：铜芯电线、绝缘软线缆、耐火塑铜线、电力电缆、金水电缆、低烟无卤电缆、电缆铝线、绝缘电缆、矿物质电缆、电线电缆、防火电缆、高压架空裸线、铜芯电缆、橡套软电缆、铝电缆、工程家装电线、家用电线、铜电线、电线护套线、空调电源线、铜软线、家装线缆、电力线缆、ZRYV、BVR
- 主营：国标电线、单芯软线、欧标线、柔性电缆、柔性护套电缆、欧标护套电缆、国标屏蔽电缆、国标护套电缆、高柔性电缆、拖链电缆、日标电缆、UL认证电缆、柔性屏蔽电缆、多芯护套电缆、RVV电缆、RV线、UL电子线、软电线、多芯软电线、铜丝电线、铜芯电线、铜芯软线、UL认证电源线
- 主营：电话线、can总线、视频线、kff电缆、485电缆、铠装线、软电缆、jhs电缆、hya电缆、通信电缆、控制电缆、计算机电缆、铁路信号电缆、音频线、gs-hrpvsp、zr-djyvrp、devicenet、电源线、数据线、多芯线、监控线、信号线、控制线、双绞线、现场总线
- 主营：高温线、监测线、双绞线、矿用电缆、电缆线、扁电缆、HYA通信电缆、计算机电缆、铁路信号电缆、照明线、焊把线、复合线、电源线、屏蔽线、手柄线、视频线、软电线、监控线、广播线、玻璃棉、橡套线、光伏线、铜芯线
- 主营：架空线、电源控制线、三相铝芯电线、电缆线、控制电缆、低压电缆、电力电缆、电线电缆、铠装电线、vlv22铝芯电缆、25平方铜芯电缆、软电缆线、矿物质电缆、通信电缆、工程电缆、高压电缆、铝合金电缆、绝缘电缆线、防火电缆、低烟无卤电缆、国标电缆、电缆厂家、家装电线
- 主营：电话线、国标线、视频线、软电缆、国标电缆、船用电缆、控制电缆、防潮电缆、总线电缆、屏蔽电缆、屏蔽线、监测线、爆破线、通讯线、广播线、传输线、矿用线、多芯线、放炮线、检测线、高压屏蔽、矿用网线、信号设备、防爆网线、阻燃网线