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4 Min Read
UNE 22511 — formally titled "Cables flexibles para minería subterránea con tensiones de 1,8/3 kV con aislamiento de caucho, sin armadura" (Flexible cables for underground mining, 1.8/3 kV, rubber-insulated, unarmoured) — is the definitive Spanish standard for heavy-duty power cables connecting underground mobile mining equipment to fixed electrical distribution networks. Published and maintained by AENOR (Asociación Española de Normalización y Certificación), it operates as a specialized overlay on IEC 60502-1, extending that base standard's electrical requirements with the stringent mechanical, safety, and flame-retardancy requirements specific to enclosed underground environments. Despite its Spanish origin, UNE 22511 enjoys a geographic reach far exceeding Iberia. The standard has been adopted — formally or by reference — across the major Spanish-speaking mining economies: Chile, Peru, Colombia, Bolivia, and Mexico, where AENOR-certified cables are accepted by national mining safety regulators as the primary qualification pathway for underground mobile equipment power supply cables. In Chile alone, UNE 22511 cables are installed across dozens of operations including major copper and coal mines. The standard's engineering DNA can be described in a single imperative: extreme dynamic flexibility combined with superior resistance to combined torsional and bending fatigue. This is not merely a performance aspiration — it is a structural requirement that shapes every material choice and geometric decision in the cable's construction. The logic proceeds as follows: Underground mobile equipment (continuous miners, shearers, shuttle cars) moves continuously and repeatedly during operation, dragging its power cable behind it or winding and unwinding it from a cable reel. This motion imposes cyclic bending, axial tension, and torsional loads on the cable simultaneously — a multi-axis fatigue regime of a severity not encountered in any other industrial cable application. Standard fixed-installation cables, even those classified as "flexible," are not designed for this loading regime and will fail in fatigue within weeks to months when installed in drag duty. Therefore, every structural element of a UNE 22511 cable — conductor wire diameter, insulation compound, earth core geometry, armour exclusion, sheath specification — is selected to maximize multi-axis fatigue endurance, not any single performance parameter. ⛏ The Founding Engineering Principle UNE 22511 is an unarmoured drag cable standard. The deliberate absence of any metallic armour — which might superficially seem to reduce robustness — is in fact the defining engineering choice that makes the standard viable. Steel wire or tape armour in a continuously torsionally-loaded cable acts as a progressive-failure torsional spring: each twist cycle accumulates irreversible plastic strain in the armour wires, leading to wire fractures within 10,000–30,000 cycles. For a shuttle car cable experiencing 80,000+ torsional cycles per year, armour represents not additional protection but a built-in scheduled failure mechanism. The UNE 22511 design eliminates this failure mode at source.
Technical Department
on11/06/2026

ТППшвАпд-нг(А)-HF：矿山通信、数据与供电组合低烟无卤电缆

ТППшвАпд-нг(А)-HF 是用于 горнорудная промышленность，即矿山工业的 组合型通用通信电缆，执行 ТУ 27.32.13-216-00217082-2023。它把 本地电话通信对、数据传输对和供电线芯 集成在同一电缆结构中，可用于本地电话网络、爆炸危险环境中的本地通信、自动化系统、煤矿和矿井 аэрогазовая защита 气体空气保护系统，以及含化学活性物质的场所
5 Min Read
FLEXIFESTOON® NE-FLAT (NGFLGÖU): Advanced High-Flexibility Anti-Salt Fog Port Cable for Maritime Cargo Handling and Marine Automation Systems Feichun's revolutionary FLEXIFESTOON® NE-FLAT NGFLGÖU flat cable combines extreme high-flexibility architecture with marine-grade anti-salt fog protection, engineered specifically for port automation infrastructure, cargo-handling festoon systems, and maritime equipment control requiring superior corrosion resistance and mechanical reliability through thousands of bending cycles in aggressive saltwater environments.
Technical Department
on11/06/2026

什么是 GOST КГЭЖ ：井下自走车辆用柔性屏蔽动力电缆

КГЭЖ 与 HoldMine КГЭпЖ 是用于地下采矿自走车辆的柔性屏蔽动力电缆，资料将其定义为 Кабели силовые гибкие экранированные для самоходных вагонов。它们服务的不是普通地面移动设备，而是 подземные горные работы 井下采矿作业中带电驱动的 самоходные вагоны 自走车辆。电缆主线芯用于 1140 V、50 Hz 交流动力供电，辅助线芯用于 220 V 辅助回路。其结构采用第 5 类多股铜导体、橡胶绝缘、导电橡胶屏蔽、合成线增强束、成型增强芯和耐油阻燃橡胶护套，核心目标是在狭窄、潮湿、磨损、弯折频繁的井下移动环境中，提供动力供电、辅助控制和屏蔽安全的统一电缆方案